El Argoub, south B2 (Eocene of Western Sahara)

Where: Western Sahara (23.4° N, 16.0° W: paleocoordinates 21.4° N, 19.1° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Gerran Member (Samlat Formation), Priabonian (38.0 - 33.9 Ma)

• fossils found in unit 2 of 3; tentatively identified as the Gerran Member of the Samlat Formation

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; pebbly sandstone

• conglomeratic sandstone

Size class: macrofossils

Preservation: original phosphate

Primary reference: S. Adnet, H. Cappetta, and R. Tabuce. 2010. A Middle–Late Eocene vertebrate fauna (marine fish and mammals) from southwestern Morocco; preliminary report: age and palaeobiogeographical implications. Geological Magazine 147(6):860-870 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 96688: authorized by Mark Uhen, entered by Mark Uhen on 25.06.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Odontaspidida - Lamiostomatidae
Macrorhizodus praecursor Leriche 1905 elasmobranch
 Odontaspidida - Alopiidae
 Rajiformes - Rhinobatidae
Rhinobatos sp. Link 1790 guitarfish
 Rajiformes - Rhynchobatidae
Rhynchobatus sp. Müller and Henle 1837 wedgefish
 Rhinopristiformes - Pristidae
Pristis cf. lathami Galeotti 1837 sawfish
Propristis schweinfurthi Priem 1897 sawfish
Anoxypristis sp. White and Moy-Thomas 1941 sawfish
 Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810 whiptail stingray
 Myliobatiformes - Myliobatidae
Myliobatis sp. Cuvier 1816 eagle ray
Mobula sp. Rafinesque 1810 devil ray
"Aetobatus cf. irregularis" = Aetobatis irregularis Agassiz 1843 eagle ray
Rhinoptera sp. Cuvier 1829 cownose ray
 Lamniformes - Otodontidae
Otodus cf. sokolovi mackerel shark
 Lamniformes - Cretoxyrhinidae
 Lamniformes - Odontaspididae
Carcharias sp. Rafinesque 1810 sand shark
 Carchariniformes - Carcharhinidae
Physogaleus sp. Cappetta 1980 requiem shark
Abdounia sp. Cappetta 1980 requiem shark
Misrichthys stromeri requiem shark
Galeocerdo sp. Müller and Henle 1837 tiger shark
Galeocerdo cf. eaglesomei White 1926 tiger shark
Carcharhinus frequens requiem shark
Carcharhinus sp. de Blainville 1816 requiem shark
Rhizoprionodon sp. Whitley 1929 sharpnose shark
 Carchariniformes - Sphyrnidae
Sphyrna sp. Rafinesque 1810 hammerhead shark
 Carchariniformes - Hemigaleidae
Paragaleus sp. Budker 1935 ground shark
Hemipristis curvatus Dames 1883 ground shark
 Carchariniformes - Triakidae
Galeorhinus sp. de Blainville and Prévost 1816 school shark
  - Scyllidae
Scyliorhinus sp. Blainville 1816 shark
 Euselachii -
Odontorhytis sp. Bohm 1926 elasmobranch
 Orectolobiformes - Ginglymostomatidae
Nebrius cf. obliquus Leidy 1877 nurse shark
Actinopteri
 Acanthomorphata - Sphyraenidae
Sphyraena sp. Walbaum 1792 barracuda
 Scombriformes - Trichiuridae
Trichiurides sp. Winkler 1874
Mammalia
 Cetacea - Basilosauridae
Basilosauridae indet. Cope 1867 whale
Dorudon sp. Gibbes 1845 whale
Basilosaurus sp. Harlan 1834 whale