Upcoming public talks about dinosaurs at the Sam Noble Oklahoma Museum of Natural History

Image courtesy of the SNOMNH

I’ll be at OU and the Sam Noble Oklahoma Museum of Natural History on May 8 and 9.

On Friday, May 8, I’m giving a lunch and learn thing for OU graduate students on how to make new discoveries in anatomy. That evening I’m giving a public talk on horned dinosaurs. Admission is free! Details here.

On Saturday, May 9, I’ll be back at the museum for the “Curiousiday: Collections Celebration”. One of the jackets of the Sauroposeidon holotype specimen will be on display in the museum’s public galleries, and I’ll be giving a couple of short talks about Sauroposeidon. Time for my talks is TBD, but probably something like 11:00 and 2:00. The first 25 visitors get in free, after that it’s regular museum admission ($12 for 18 and up, $10 seniors, $7 kids 4-17, free for babies and toddlers). Details here.

I don’t know yet if there will be a formal book signing, but if you have one of my books and would like it signed, I’ve never turned anyone down.

If you’re within striking distance of Norman, come on out, see the museum’s awesome fossils, and maybe put up with some geek banging on about dinosaurs and/or vandalizing your library.

In honor of the upcoming horned dinosaur talk, here’s a Triceratops I drew. More on that another time.


doi:10.59350/hnkz4-b3d26

In search of rearing mounted sauropod skeletons

I’m pretty sure that our old friend the AMNH Barosaurus was the first sauropod skeleton even mounted in a rearing pose.

Taylor and Wedel 2016:Figure 1. Mounted cast skeleton of Barosaurus referred specimen AMNH 6341, in the entrance hall of the American Museum of Natural History. Homo sapiens (MPT) for scale. Photograph by MJW.

(Does anyone know of an earlier one? That would be fascinating!)

But what other mounted sauropods have been placed in a rearing posture, with both forefeet off the ground? I know of four others. First, the rearing Diplodocus at the Museum of Science and Innovation in Tampa, Florida, that we discussed in detail in Taylor et al. (2023:80–82):

Taylor et al. 2023:Figure 10. Double Diplodocus mount at the Museum of Science and Industry (MOSI), Tampa, Florida. Both individuals are identical, having been cast from the molds made by Dinolab from the concrete Diplodocus of Vernal. Photograph by Anthony Pelaez, taken between 1997 and 2017.

Strangely enough, the other three are all individuals of Camarasaurus, an ugly four-square sauropod whose centre of gravity was well forward of the acetabulum in normal posture, and which would have found rearing much more difficult than in diplodocids. My guess is that’s just because Camarasaurus is so abundant that there are a lot of mounted skeletons out there, and some have been mounted in rearing postures because, well, why not?

Here is one from the Wyoming Dinosaur Centre in Thermopolis:

Camarasaurus skeleton from the BS (Beside Sauropod) quarry, on display at the Wyoming Dinosaur Center. Photograph by CryolophosaurusEllioti, CC By. https://commons.wikimedia.org/wiki/File:WDC_-_Camarasaurus_skeleton.jpg

(I can’t find a good photo of this mount from the front or the side: if anyone can, please let me know in the comments.)

The next is in the US National Museum (USNM), otherwise known as the NMNH, otherwise known as the Smithsonian. It’s on the right of this photo:

Rearing Camarasaurus (right of photo, the smaller of the two sauropods) at the USNM/NMNH/Smithsonian. Photo by Ben Miller. https://sauropods.win/@extinctmonsters/109293854660129716

And finally, as I was putting this post together, I stumbled across this mount at the Naturalis Biodiversity Center in Leiden, the Netherlands:

Yet another rearing Camarasaurus, at the Naturalis Biodiversity Center in Leiden, the Netherlands. Photo by thedogg, CC By-SA. https://commons.wikimedia.org/wiki/File:WLANL_-_thedogg_-_Camarasaurus_(2).jpg

I know nothing about this one, and would welcome any details.

In fact, I don’t know much about any of the three rearing camarasaurs. Can anyone tell me, for example, when they went up? And whether the AMNH Barosaurus was a conscious inspiration?

And the $64,000 question: does anyone know of other rearing sauropod mounts?

References

 


doi:10.59350/qg664-9be62

Tutorial 48: my museum collections kit

I was on the road for most of August, September, and October, and in particular I made a ton of museum collections visits. When I visit a museum collection, I bring a specific set of gear that helps me get the photos, notes, and measurements that I want. All of this is YMMV — I’m not trying to predict what will work best for you, but to explain what has worked for me, and why. I’m reasonably happy with my current setup, but even after 28 years of museum visits, I’m still finding ways to improve it. Hence this post, which will hopefully serve as a vehicle for sharing tips and tricks.

A word about my program when I visit a collection, because not everyone needs or wants to do things my way. The closest museums with extensive sauropod collections are states away from where I live and work. If I’m in those collections at all, I’m traveling, and therefore on the clock. Time in collections is a zero-sum game: if I have the time to take 20 pages of notes, that could be 4 pages of notes of each of 5 specimens, 2 pages on 10, 1 page on 20, half a page on 40, etc. In practice, I usually make expansive notes early in the visit, one or two spreads per specimen with detailed sketches and exhaustive measurements of the most publication-worthy elements. I grade toward brevity over the course of the visit, and end with a mad desperate rush, throwing in crude sketches and rudimentary notes on as many newly-discovered (by me) specimens as possible. My collections visits are Discovery Time and Gathering Time, trying to get all the measurements and photographs I’ll want for the next year, or five, or forever. And, to the extent that I can suppress them, not Analysis Time or Graphing Time or Writing Time — I can do those things after hours and in my office back home, IF and only if I’ve spent my collections time efficiently gathering all the information I’ll need later.

The very first thing I do in any collection is a walking survey, to make sure I know roughly what specimens the collection contains and where to find them. For a sufficiently large collection — or even a single cabinet with 10 drawers of good stuff — I may draw a map in my notebook, on which I can note things I want to come back and document, and add new things as I find them.

Enough preamble, on to the gear. The first two or three entries here are in strict priority order, and after that things get very fuzzy and approximate.

1. Research Notebook

Seems obvious, right? Write stuff down, make sketches, capture the info that will be difficult or impossible to recapture later from photos. I have encountered people who don’t take a physical notebook, just a laptop or tablet, and take all their notes digitally. If that works for you, may a thousand gardens grow. For me, sketching is a fundamental activity — for fixing morphology in my mind, disciplining myself to see the whole object and its parts, creating a template on which to take further explanatory notes, and capturing the caveats, stray ideas, and odd connections that surround each specimen in a quantum fuzz in my mind (temporarily in my mind, hence the need for external capture). I also write priority lists in advance of specimens to document each day, and then cross them off, add new ones, and strike out duds with wild abandon in the heat of data collection.

I do a few specific things to increase the usefulness of my notebooks:

– Label the spines and covers with the notebook titles and years. These things live on the shelf directly over my desk, and I pull them down and rifle through them constantly. I also have notebooks for university service (committees, student advising, and so on), astronomical observations, and personal journaling, so “Research” is a useful tag for me.

– Number the pages, if they’re not already numbered, use the books chronologically from front to back, and create the table of contents retrospectively as I go — a tip I got from the Bullet Journal method.

– Paste a small envelope inside the back cover, if a pouch is not already built in, to hold all kinds of ephemera — index cards, scale bars, a bandage (just in case), stickers I acquire along the way, etc.

– Affix a section of measuring tape to the outer edge of the front or back cover. I got this tip from the naturalist John Muir Laws, whose Laws Guide to Nature Drawing and Journaling is wonderfully useful and inspiring (UPDATE: that book is now covered in its own post, here). The scale-bar-permanently-affixed-to-research-notebook has been a game-changer for me. Do you know how many times I’ve accidentally left a scale bar on a museum shelf, and then gotten to my next stop and had to borrow or fabricate one? I myself lost count long ago. But never again. If I’m in a hurry, small specimens go straight onto the notebook to be photographed, like the baby apatosaurine tibia above, and the notebook itself goes into the frame with large specimens. (This comes up again — if possible, and it’s almost always possible, put the specimen label in the photo with the specimen. No reason not to, and sometimes a lifesaver later on.)

Behold the thinness of the eminently pocketable IKEA paper tape. Folding instructions, because this seems to bedevil some folks: hold up one end, fold in half by grabbing the other end and bring it up in front, then do that three more times. Finished product is 65mm long, 25.4mm wide, and about 1mm thick when folded crisply and left under a heavy book overnight.

2. Measuring tapes

I find the flexible kind much more convenient and useful than retractable metal tape measures. I like the 1-2mm thick plastic type used by tailors and fabric sellers, because they have just enough inertia to stay where I put them, or drop in a predictable fashion when draped over something sufficiently large, as when measuring midshaft circumference of a long bone.

I LOVE the little plasticized paper tapes that hang on racks, free for the taking, near the entrances of IKEA stores. I tear them off by the dozen when I go to IKEA, cram them in my pockets, fold them flat when I get home, and stash them everywhere, including in my wallet. A few specific reasons they’re great:

– Folded flat, they’re about the thickness of a credit card, so there’s just no reason to be without one. I usually have one in my wallet, another in the envelope at the back of my research notebook, a couple more stashed in my luggage, a couple more stashed in my car, desk, tookbox, nightstand, etc.

– I can write on them. Especially handy if:

– I’ve torn off a section to serve as an impromptu scale bar. Which I never hesitate to do, because they’re free and I have dozens waiting in my toolbox and desk drawers at any one time. Torn off bits also make good bookmarks, classier, more cerebral, and less implicitly gross than the traditional folded square of toilet paper.

– I give them away to folks I’m traveling with, or that I meet in my travels, and they’re usually well-received.

I would NOT have figured out all these laminae if I hadn’t had a way to make them stand out.

3. Writing instruments in various colors

Up until about 2018 my notebooks were always monochrome pen or pencil. Then I realized that color is an extremely helpful differentiator for Future Matt, so now I highlight and color-annotate willy-nilly.

4. Calipers

I borrowed the digital calipers from Colin Boisvert to get the photo up top, having forgotten my own at home. As a sauropod worker, I don’t need sub-millimeter accuracy all the time. But digital calipers have three exceedingly useful functions: measuring the thickness of very thin laminae and bony septa; measuring the internal dimensions of small fossae and foramina; and measuring the depth of fossae and of concave articular surfaces. I also have a little titanium caliper on a lanyard that goes with me most places.

5. Small brush on a carabiner

This is the newest addition to the kit. I got the idea from Matthew Mossbrucker at the Morrison Museum in Morrison, Colorado. Colin and I visited him in September, immediately before our week-long stint in the collections at Dinosaur Journey. Matthew keeps a little brush carabinered to his belt at all times, and the utility was so instantly obvious that when Colin and I rolled into Fruita later that same day, I went to the hardware store and got my own. Cheap, weighs nothing, clips to anything, compact enough to cram in a pocket, good for lab and field alike. Genius!

6. Scale bar

Yes, I have my scale-bar-enhanced research notebook and my hoarder stash of IKEA paper tapes, but good old-fashioned scale bars are still useful, and I use them constantly. And lose them constantly, hence my multiple redundant backup mechanisms.

(Aside: I can’t explain why I hold onto some objects like grim death, but let others fall through my fingers like sand grains. I’ve only lost one notebook of any kind in my entire life — set it on top of the car while packing and then drove off [grrrr] — so I have no problem investing in nice notebooks and treating them like permanent fixtures. But I can’t hang onto pens and scale bars to save my life, hence my having gravitated to Bic sticks and IKEA paper tapes.)

7. Index cards

I try to get as much information into each photograph as possible. Ideally alongside the specimen I will have:

– a scale bar at the appropriate depth of field;

– the specimen tag with the number, locality, and other pertinent info;

– my notebook open to my sketch of the specimen, for easy correlation later (I don’t do this for every single view, just the ones that I think are particularly publication-worthy, or have info I’m likely to forget later);

– anything else I might want — serial position, anatomical directions, whether the photo is part of an anaglyph pair, and so on — written on an index card, which being a standard size will itself serve as an alternate/backup scale bar.

8. Pencil case

To hold all the smaller fiddly bits you see in the photo up top. I can’t now fathom why, but I resisted getting one of these for a loooong time. I was young and foolish then. Pretty useful all the time, absolutely clutch when it’s 4:58 pm and I’m throwing stuff in bags, caught between the Scylla of working as late as possible and the Charybdis of wanting to be polite to whatever kind, patient person is facilitating my visit. That is also when the pocket in the back of the notebook comes in especially handy.

Headlamp in action, casting low-angle light on a pneumatic fossa on the tuberculum of this sauropod rib. Note also the scale bar, elevated on a specimen box to be the same depth of field, and the notebook open to my sketch of the specimen.

9. Artificial lighting

This was another very late discovery for me — I don’t think I was regularly bringing my own lights prior to 2018. For me, portable, rechargeable lighting is useful in many circumstances and absolutely critical in two: casting low-angle light to pick out subtle pneumatic features, as in the photo above, and lighting up big specimens that I don’t have the time, energy, or space to pull off the shelves, as in the photo below.

I’m particularly taken with the big orange fan/light combo. It charges using a USB-C cable, has four settings for fan speed (handy when it’s hot, humid, or just oppressively still) and three for light intensity, a rotating hook that folds flat, and a USB power-out socket for charging phones, headlamps, fitness trackers, and what have you. I use it practically every day whether I’m on the road or not.

Magnetic flashlight hanging from steel shelving to illuminate Camarasaurus cervical vertebrae in the Utah Field House collections.

Whether it’s a hook or a magnet, some kind of mechanism for suspending a light at odd heights and angles is super useful. I usually have a strong flashlight with an integral seat-belt cutter and window-smasher in the door pocket of my car, and its magnetic base makes it omnidirectionally functional in collections spaces, which are usually liberally supplied with steel in the form of shelving and cabinets.

Haplocanthosaurus CM 879 caudal 2 in left lateral view, with rolled-up paper neural canal visualizer and scale-bar-stuck-to-flashlight.

Sometimes I use a bit of blue tack to stick a scale bar to a flashlight, to create a free-standing, truly vertical scale bar that I can rapidly place at different distances from the camera. Beats leaning the scale bar against a stack of empty specimen boxes or a block of ethofoam (which in turn beats nothing at all).

What else?

USUALLY — Laptop

Not for recording notes or measurements — all of that goes into the notebook, which I scan and upload new stuff from every evening. Mostly for displaying PDFs of descriptive monographs, and hugely useful in that regard.

MAYBE — Monographs

When I have the freedom (= baggage allowance) to do so, I find it handy to bring hardcopies of descriptive monographs, both for quick reference and so I can photograph specimens alongside the illustrations. Doesn’t even have to be the same specimens, just comparable elements. In the photo above, MWC 7257, a partial sacral centrum of Allosaurus from the Mygatt-Moore Quarry, is sitting next to a plate from Madsen (1976), illustrating the same vertebra in a specimen from Cleveland Lloyd Dinosaur Quarry. Thanks to Colin Boisvert for bringing the specimen to my attention — I’ve got a longstanding thing for sacrals — and for loaning me his copy of Madsen (1976) for this photo.

OUT — Camera and tripod

I suspect that some folks will shake their heads in mute horror, but after a couple of decades of lugging dedicated cameras and tripods everywhere, I stopped. For the past few years I’ve been rolling with just my phone, which is objectively better than any dedicated camera I owned for the first half of my career. Sometimes I brace it in an ad hoc fashion against a chair or shelf or cabinet, but mostly I just shoot freehand. For my purposes, it does fine, and any minor improvements in field curvature or whatever that I’d get from a dedicated camera don’t outweigh the logistical hassle. Again: YMMV!

Over to you

So, that’s what I roll with right now. It was different six months ago, and will almost certainly be a little different six months hence, hopefully as a result of people responding to this post. With all that said: what’s in your kit?

P.S. Many thanks to Matthew Mossbrucker and Julia McHugh for their hospitality and assistance in their collections, and to Colin Boisvert for being such a great travel companion, research sounding board, and generous loaner-of-things-I’d-forgotten. The Wedel-Boisvert Morrisonpocalypse 2025 deserves more blogging.

 


doi:10.59350/c21vr-f8727

New paper: pneumatic diverticula and blood vessels in the neural canals of the toothed birds Ichthyornis and Janavis

New paper out this week, open access like usual, go get it for free:

Atterholt, Jessie; Burton, M. Grace; Wedel, Mathew J.; Benito, Juan; Fricano, Ellen; and Field, Daniel J. 2025. Osteological correlates of the respiratory and vascular systems in the neural canals of Mesozoic ornithurines Ichthyornis and Janavis. The Anatomical Record. http://doi.org/10.1002/ar.70070.

If I recall the sequence correctly, Jessie Atterholt met Dan Field at one of the recent Society of Avian Paleontology and Evolution (SAPE) meetings. Between them they spun up the idea of looking for evidence of paramedullary diverticula (PMDs) in the neural canals of some fossil birds that Dan and his collaborators and students had been studying, namely Ichthyornis and Janavis, both toothy ichthyornithines from the Late Cretaceous. This was not long after Jessie and I had our paper on PMDs in extant birds published (Atterholt and Wedel 2022), and we were interested in chasing PMDs down the tree. At the same time, Dan and his former student, Juan Benito, had a big war chest of CT scans of Ichthyornis and Janavis. So the actual work for this project was very similar to the work for Atterholt and Wedel (2022): lots of hours in front of a computer, flipping through stacks of CT slices. But I’m getting ahead of myself.

Skeletal reconstruction of Ichthyornis from Marsh 1880

Ichthyornis you know, it’s one of the toothed birds that O.C. Marsh described in the 1870s, after basically buying the specimen out from under E.D. Cope, one of the many inciting incidents of the Bone Wars. For most of my career I simply could not keep Ichthyornis and Hesperornis straight. It has always been perversely confusing to me that the flightless swimming bird is not named “fish bird”, and the gull-like flying bird is not named for Hesperus, or Venus, a thing actually up in the sky. The “fish bird” was the flyer and the “Venus bird” was the flightless swimmer. It’s just plain backwards. (Before anyone pushes their glasses up their nose in the comments, yes, I know that Hesperornis is intended as “western bird”. Both taxa are from the West. Still confusing.)

The much larger Janavis (right) compared to the more-completely-known Ichthyornis (left). From Benito et al. (2022: fig. 1).

Janavis I was not familiar with prior to this project. It’s the sister taxon of Ichthyornis, only named in 2022 by Benito et al. Janavis was big, too, with an estimated wingspan of 5 feet, about the same as the largest extant gulls (or for me, an Oklahoma farmboy, a really big hawk). The vertebrae of Janavis are cuh-ray-zee pneumatic, totally honeycombed inside and fairly Swiss-cheesy in places on the outside, edging up to the frankly unbelievable anatomy of pelicans. Or shoebill storks, about which more in a sec.

Jessie Atterholt, Grace Burton, and me at the LACM in August, 2024. Sorry about the unfortunate non-sauropods in the background.

Grace Burton, one of Dan’s current PhD students, came over to SoCal last year to do some research at the LACM and work with Jessie and me on the IchyJan project (it only took me about half a dozen emails to realize that I was too lazy to type “Ichthyornis and Janavis” the thousand or so times I’d need to). The three of us had an enjoyable visit to the LACM Ornithology collection to find comparative specimens, some of which we ended up figuring in the new paper. And Jessie and Grace spend a LOT of time looking through CT scans. I got in on some of that, but really, Jessie and Grace did almost all the heavy lifting with both the research and the writing, so it’s only just that they’re the first two authors. This was mostly an Atterholt joint from the get-go anyway. If my interest in weird neural canal anatomy is a roaring bonfire, Jessie’s is more like the Sun.

One of the cervical vertebrae of the shoebill stork, Balaeniceps rex, LACM 116167. Check out the “bone foam” of pneumatic foramina inside the cervical rib loop and on the side of the centrum.

Of the new coauthors I picked up on this project, one is close to home: Elle Fricano, who works alongside Jessie and me as one of the anatomy faculty at WesternU. We ended up needing to scan some specimens at WesternU with our microCT machine, and Elle did virtually all of the scanning and interp, so we brought her on as an author. Elle’s own research is mostly on the evolution of the cranial base and ear region in humans and other primates, but she’s gotten into pneumaticity with a very nice paper on the human maxillary sinus (Fricano et al. 2025). She also works as a forensic anthropologist, and earlier this year she passed her forensic board exams to became the 176th Diplomate of the American Board of Forensic Anthropology — the 176th ever (full list here) — and one of only 124 active board-certified forensic anthropologists in the world. That is a heck of an achievement for anyone, but especially for someone on the tenure track, with a heavy teaching load, research, committee service, and a family. Am I bragging on my colleague? Heck yes. When a fire burns down a neighborhood out here, Elle is one of the people who goes and sifts bone shards out of the ashes and does her best to give the survivors some closure (not to mention helping investigate other deaths, ones that Nature had less of a hand in). That work is not without its costs, and I’m a little in awe of anyone who chooses to do it.

Hypothesized reconstructions of respiratory, vascular, and neurological structures in the neural canals of Ichthyornis dispar and Janavis finalidens. (a) Ichthyornis (KUVP 25472) cervical 11 showing likely arrangement of paramedullary diverticula (green) and paired extradural ventral spinal vessels (pink) relative to the spinal cord (yellow). (b) Janavis (NHMM RD 271) indeterminate mid-thoracic vertebra 1 showing likely arrangement of the extradural dorsal spinal vein (blue) relative to the spinal cord (yellow). Atterholt et al. (2025: figure 5).

Anyway: neural canals in fossil birds. We were hunting for hard evidence of pneumatic diverticula inside the neural canal, ideally unambiguous foramina opening into clearly pneumatic spaces in the neural arch or centrum. We found those foramina, and lots of other weird stuff besides. Some of the vertebrae of Ichthyornis and Janavis have bilobed neural canals, and from comparisons with extant birds we’re pretty sure the upper lobe held a big venous sinus. Crocs have one, too, in their bilobed neural canals. Most of the critters that fall evolutionarily between crocs and birds don’t have bilobed neural canals, but they may still have had big venous sinuses that simply failed to leave diagnostic traces — the curse of pneumaticity researchers extended to blood vessels.

Some of our CT scans of extant birds show that upper lobe being shared by both a big venous sinus and pneumatic diverticula, and the upper lobe is sometimes expanded into what Jessie and I nicknamed the “pneumatic attic”: a large space of variable geometry that very often has big pneumatic foramina opening into the transverse processes, postzygapophyseal rami, or neural spines. You can see the “pneumatic attic” with the pneumatic diverticula restored in a vertebra of Ichthyornis in Figure 5, above. Virtually everything we found in Ichthyornis and Janavis could be lined up 1-for-1 with an identical geometry or topology in one or another extant bird, which made us feel better about our interpretations.

Paired ventrolateral channels in Ichthyornis dispar, and examples of similar structures in extant avians. (a) Ichthyornis (ALMNH 3316) axis; note that the channel on the right has just given rise to a neurovascular foramen. (b) Ichthyornis (KUVP 25472) vertebra 11. (c) King penguin (Aptenodytes patagonicus, LACM 99854) thoracic vertebra. (d) Ichthyornis (ALMNH 3316) sacral vertebra. (e) Blue petrel (Halobaena caerulea) sacral vertebra. (f) Ichthyornis (KUVP 25472) indeterminate caudal vertebra 1. (g) Ichthyornis (KUVP 25472) indeterminate caudal vertebra 2. (h) Common loon (Gavia immer, LACM 112761) caudal vertebra. (i) Antarctic prion (Pachyptila desolata) caudal vertebra. Atterholt et al. (2025: figure 4).

One thing that needs more work is the frequent occurrence of small, paired troughs at the ventrolateral corners of the neural canal, not only in Ichthyornis and Janavis but in many extant birds as well. These troughs often bud off little vascular foramina that we can trace down into the centrum, so we’re pretty sure the troughs held blood vessels in life. A lot of vertebrates have a ladder-like arrangement of arteries in their neural canals, which could be the source of these troughs, but they might also have been produced by little basivertebral veins, which birds otherwise seem to lack. Why don’t we we just inject some dead birds, dissect them, and find out, you maybe wondering. Well, we’re gonna, at some point, but that’s at least another whole paper’s worth of work, and possibly several. We’d rather just go look up the answer, but as far as we and our reviewers could tell, no-one has ever written about these troughs and their contents before (if you know otherwise, please sing out in the comments!).

So once again, Jessie and I find ourselves needing to do novel anatomical research on living animals, partly because it’s worth doing in its own right, but also so that we can make progress on the paleontological questions that got us into this in the first place. It’s awfully hard to make informed paleobiological inferences when so much basic anatomy remains to be documented for the first time, even in extant critters. As I keep saying, a lot of this is work that anyone with sufficient time and curiosity could do, much of it inexpensively. So if you find this stuff intriguing, we’d love to have more explorers out here where the pneumatosphere intrudes into the neural-canal-iverse.

I was up inside the Utah Field House Diplodocus three weeks ago, logging pneumatic structures that no-one had documented in 125 years. More on that another time. Many thanks to John Foster for the ladder and the permission.

As for Jessie and me, this is our fifth neural-canal-related paper (see the evolving list here). We keep kicking them out the rate of one per year, which is nice and sustainable and unlikely to stop anytime soon. According to my to-do list, she and I have at least another 15 collaborative papers planned. Not all of them are about neural canals, but still… I reckon we’d better get to it.

REFERENCES

 


doi:10.59350/8750f-56p27

Midnight in the Museum

 

Midnight in the museum

In the yawning resonance

Of empty space

The great xylophone skeletons

Play the lonely strains of Time

Like cathedral organs

Heralding the ends of ages.

 

 

Time rushes on

The final predator

Implacable

Like Dinichthys

Cruising the crinoid beds

Sounding one note:

Everything dies.

Change hammers all

On the anvil of eons

Carnivores and civilizations

Long of tooth

Weak of spirit

Wracked by rot and riot

Collapse.

Their carcasses play host

To new generations

That strip the drying flesh

And flaunt their youth

Beneath the philistine stars

That warmed the nebulae

Before the phoenix-fusion birth

Of brash young Sol.

 

 

I feel a distant call

The silent whistle screaming

Of my genes

Seeking always

To jump this fragile ship of life

And flee down the generations

Until I am lost

Expended

Forgotten.

The tyrant kings smile knowingly:

“You too shall pass”

And continue their stately voyage

Into eternity.

 

 

The circle closes

The revolution complete

And morning spreads her wings

To the far horizon.

I do not fear the dawn

Or the age to come

For I have basked

On desert sands

Drinking life like heat

And felt the mighty Tethys

Washing over my feet.

 

 

 

Notes

In 1998-2001 I was a graduate student at the University of Oklahoma, with night-owl tendencies and all-hours keycard access to the old museum collections, a defunct WWII-era gymnasium where dinosaur skeletons were prepared and test-assembled, and the new building — now the Sam Noble Museum of Natural History — where they were being installed, ancient bones going up on skeletons of new steel. I wrote this in 1998 or 1999; perhaps fittingly, its precise origin is now lost in time. I’d no doubt say it all rather differently now, but 50-year-old me will yield the floor to the 20-something who penned this, not least because he wrote me into existence as well. Oh, and if I didn’t swipe the expression “xylophone skeletons” directly from Ray Bradbury’s Dinosaur Tales, it was at least heavily inspired by Bradbury.

Photos, top to bottom:

Diplodocus, Utah Field House of Natural History, Vernal, UT

Pteranodon, Rocky Mountain Dinosaur Resource Center, Woodland Park, CO

Something toothy, American Museum of Natural History, New York City, NY

Clouds over Mygatt-Moore Quarry, Rabbit Valley, CO

Ripple rock, Denver Museum of Nature and Science, Denver, CO

 


doi:10.59350/p36ad-5t495