Underwood 28 (Eocene of Egypt)

Where: Egypt (29.3° N, 30.1° E: paleocoordinates 24.6° N, 26.0° E)

• coordinate stated in text

• small collection-level geographic resolution

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

• mudstones ?equivalent to sandstones above Camp White Layer

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; mudstone

• open marine mudstones

Size classes: macrofossils, mesofossils

Collection methods: bulk

• specimens from Basilosaurus excavation

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 137569: authorized by Mark Uhen, entered by Mark Uhen on 18.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Chondrichthyes
 Myliobatiformes - Myliobatidae
? Burnhamia sp. Cappetta 1976 eagle ray
"Rhinoptera" sp. Cuvier 1829 cownose ray
 Myliobatiformes - Dasyatidae
Neotrygon sp. Castelnau 1873 whiptail stingray
 Myliobatiformes - Gymnuridae
Ouledia sp. Cappetta 1986 stingray
Gymnura sp. Van Hasselt 1823 stingray
 Euselachii -
Odontorhytis aff. pappenheimi Bohm 1926 elasmobranch
 Hexanchiformes - Hexanchidae
Hexanchus sp. Rafinesque 1810 sixgill shark
 Pristiophoriformes - Pristiophoridae
Pristiophorus sp. Bleeker 1859 saw shark
 Torpediniformes - Narcinidae
Narcine sp. Henle 1834 numbfish
 Rhinopristiformes - Pristidae
Pristidae indet. Bonaparte 1838 sawfish
? Pristis sp. Linck 1790 sawfish
 Carcharhiniformes - Triakidae
Triakis sp. Müller and Henle 1838 hound shark
 Carcharhiniformes - Leptochariidae
Leptocharias sp. Müller and Henle 1837 ground shark
 Carcharhiniformes - Scyliorhinidae
Scyliorhinidae indet. Gill 1862 cat shark
Megascyliorhinus sp. Cappetta and Ward 1977 cat shark
Crassescyliorhinus sp. Underwood and Ward 2008 cat shark
Abdounia sp. Cappetta 1980 cat shark
 Carcharhiniformes - Carcharhinidae
Physogaleus sp. Cappetta 1980 requiem shark
Rhizoprionodon sp. Whitley 1929 sharpnose shark
 Carcharhiniformes - Hemigaleidae
Hemipristis sp. Agassiz 1835 ground shark
 Carcharhiniformes - Galeocerdidae
Galeocerdo sp. Müller and Henle 1837 tiger shark
 Orectolobiformes - Ginglymostomatidae
Nebrius sp. Rüppell 1837 nurse shark
 Orectolobiformes - Hemiscylliidae
Chiloscyllium sp. Müller and Henle 1837 carpet shark
 Lamniformes - Otodontidae
Carcharocles sokolovi mackerel shark