Archiac, A.M., d' (1847): Extrait d'un Memoire sur les fossiles des conches a
Nummulites des environs de Bayonne et de Dax.
a) Genus:
Nummulites Lamarck The Genus
Nummulites recorded in the Sakesar Limestone was identified into two species including i)
Nummulites mamillatus and ii)
Nummulites atacicus
They are gray to green and contain benthic (miliolids,
Nummulites, Neorotalia, Elphidium, Operculina, Amphistegina and textularids) and planktonic (Paragloborotalia mayeri and Globigerina spp.) foraminifera.
Nummulites test are radial hyaline, biconvex, planispiral invoulte form that reveal V-shaped cavities in axial section [5].
X X X X X X Filo Bryozoa Clase Gymnolaemata X X X X X X Framinifera plantonicos X X X X X X Miliolidos X X X X X X Lepidocyclina X X X
Nummulites X Algae X X X X X X Oncoides X X X X X X Lithophylum X X X X X X Archaelithothamium X X X X X X Simbologia: P: Paleoceno.
The SBZ 18 is identified by the first appearance of Pellatispiramadaraszi,
Nummulites striatus, Borelis vonderschmitti and species of Heterostegina, Pellatispira and Alveolina sp.
large benthic foraminifera like
Nummulites sp., Assilina sp., and Discocyclina sp along with bivalve and echinoid debris are present (Fig.
Total 8 species of larger foraminifera were recorded including Alveolina Indicatrix Hottinger 1960 [1] and
Nummulites djodjokartae Martin 1881 [2] (reported first time from Chorgali Formation of this area).
Benthic Foraminifera; Assilina dandotica, Assilina laminosa, Assilina leymerie, Assilina spinosa,
Nummulites globulus Leymerie,
Nummulites atacicus Leymerie,
Nummulites mammalitus, Discocyclina dispansa, Discocyclina ranikotensis, Lockhartia conditi, Operculina, Bigenerina, Miliolids, Textularia and Planktic Foraminifera; Globigerina along with some echinoderms and algal fragments often embedded in sparry calcite or lime mud.
Nummulites are samples of these creatures which expanded greatly and known as kings of carbonate platforms.
The genus here is confined only to the upper part ofthe Drazinda Formation ('Pellatispira beds' ofthe obsolete Kirthar series) associating with Pellatispira, Silvestriella, reticulate
Nummulites, rare orthophragminids and other less significant LBF.
The lower carbonaceous shale and larger benthic foraminifera such as Ranikothalia sindensis, Lockhartia haimei, Miscellanea miscella, Lockhartia conditi, Lockhartia tipperi, Assilina sub spinosa, and
Nummulites globulus Leymerie were identified from the Patala Formation.
The Nammal Formation belongs to Innemeritic environments because it contains larger benthic foraminifera in large quantities as compared to Planktons and Nano-fossils belonging to generaLockhartia, Assilina,
Nummulites, Alvolina and Discocylina which are characteristic of shallow carbonate platform environment.
