Underwood 16 (Eocene of Egypt)

Where: Egypt (29.3° N, 30.1° E: paleocoordinates 24.7° N, 26.0° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Gehannam Formation, Priabonian (38.0 - 33.9 Ma)

• glauconite lens

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; glauconitic mudstone

• open marine mudstones

Size classes: macrofossils, mesofossils

Collection methods: bulk, surface (in situ)

Primary reference: C. J. Underwood, D. J. Ward, C. King, S. M. Antar, I. S. Zalmout and P. D. Gingerich. 2011. Shark and ray faunas in the Middle and Late Eocene of the Fayum Area, Egypt. Proceedings of the Geologists’ Association 122(1):47-66 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 137551: authorized by Mark Uhen, entered by Mark Uhen on 18.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Chondrichthyes
 Odontaspidida - Lamiostomatidae
 Odontaspidida - Alopiidae
Alopias sp. Rafinesque 1810 thresher shark
 Euselachii - Galeidae
Triakis sp. elasmobranch
 Myliobatiformes -
Coupatezia sp. Cappetta 1982 stingray
 Myliobatiformes - Gymnuridae
Gymnura sp. Van Hasselt 1823 stingray
 Myliobatiformes - Dasyatidae
Neotrygon sp. Castelnau 1873 whiptail stingray
 Myliobatiformes - Rhinopteridae
"Rhinoptera" sp. Cuvier 1829 cownose ray
 Myliobatiformes - Myliobatidae
"Myliobatis" sp. Cuvier 1816 eagle ray
sp. 1, sp. 2
 Rajiformes - Rhynchobatidae
Rhynchobatus sp. Müller and Henle 1837 wedgefish
 Pristiformes - Pristidae
Pristis lathami Galeotti 1837 sawfish
Anoxypristis sp. White and Moy-Thomas 1941 sawfish
 Torpediniformes - Narcinidae
Narcine sp. Henle 1834 numbfish
 Hexanchiformes - Hexanchidae
Hexanchus sp. Rafinesque 1810 sixgill shark
 Lamniformes - Otodontidae
Carcharocles sokolovi mackerel shark
 Lamniformes - Odontaspididae
 Orectolobiformes - Parascylliidae
Megascyliorhinus sp. Cappetta and Ward 1977 collared carpetshark
 Orectolobiformes -
Eostegostoma sp. Herman and Crochard 1977 carpet shark
 Carchariniformes - Carcharhinidae
Physogaleus sp. Cappetta 1980 requiem shark
Abdounia sp. Cappetta 1980 requiem shark
Galeocerdo sp. Müller and Henle 1837 tiger shark
Carcharhinus sp. de Blainville 1816 requiem shark
Rhizoprionodon sp. Whitley 1929 sharpnose shark
 Carchariniformes - Scyliorhinidae
"Scylliorhinidae indet." = Scyliorhinidae, Crassescyliorhinus sp.
"Scylliorhinidae indet." = Scyliorhinidae Gill 1862 cat shark
Crassescyliorhinus sp. Underwood and Ward 2008 cat shark
 Carchariniformes - Hemigaleidae
Hemipristis sp. Agassiz 1843 ground shark
 Heterodontiformes - Heterodontidae
Heterodontus sp. de Blainville 1816 bullhead shark
 Pristiophoriformes - Pristiophoridae
Pristiophorus sp. Bleeker 1859 saw shark