Underwood 16 (Eocene of Egypt)

Where: Egypt (29.3° N, 30.1° E)

• Paleocoordinates: 19.0° N, 31.6° E (Wright 2013)

• 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: CC0 (CC0)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Misrichthyes stromeri, Moerogaleus vitreodon, Pseudaetobatis sp.
Chondrichthyes
 Lamniformes - Carchariidae
"Carcharias" aff. twiggsensis
 Lamniformes - Alopiidae
Alopias sp.
Alopias sp. Rafinesque 1810 thresher shark
 Lamniformes - Otodontidae
"Carcharocles sokolovi" = Otodus (Carcharocles)
"Carcharocles sokolovi" = Otodus (Carcharocles) mackerel shark
 Lamniformes - Lamnidae
Macrorhizodus praecursor
Macrorhizodus praecursor Leriche 1905 mackerel shark
 Orectolobiformes - Brachaeluridae
Eostegostoma sp.
Eostegostoma sp. Herman and Crochard 1977 carpet shark
 Carcharhiniformes - Scyliorhinidae
"Scylliorhinidae indet." = Scyliorhinidae, Crassescyliorhinus sp., Megascyliorhinus sp.
"Scylliorhinidae indet." = Scyliorhinidae Gill 1862 cat shark
Crassescyliorhinus sp. Underwood and Ward 2008 cat shark
Megascyliorhinus sp. Cappetta and Ward 1977 cat shark
 Carcharhiniformes - Triakidae
Triakis sp.
Triakis sp. Müller and Henle 1838 hound shark
 Carcharhiniformes - Carcharhinidae
Abdounia sp., Rhizoprionodon sp., Negaprion aff. frequens, Negaprion amekiensis, Carcharhinus sp.
Abdounia sp. Cappetta 1980 requiem shark
Rhizoprionodon sp. Whitley 1929 sharpnose shark
Carcharhinus sp. de Blainville 1816 requiem shark
 Carcharhiniformes - Galeocerdidae
Galeocerdo sp., Physogaleus sp.
Galeocerdo sp. Müller and Henle 1837 tiger shark
Physogaleus sp. Cappetta 1980 ground shark
 Carcharhiniformes - Hemigaleidae
Hemipristis sp.
Hemipristis sp. Agassiz 1835 ground shark
 Heterodontiformes - Heterodontidae
Heterodontus sp.
Heterodontus sp. de Blainville 1816 bullhead shark
 Pristiophoriformes - Pristiophoridae
Pristiophorus sp.
Pristiophorus sp. Bleeker 1859 saw shark
 Hexanchiformes - Hexanchidae
Hexanchus sp.
Hexanchus sp. Rafinesque 1810 sixgill shark
 Torpediniformes - Narcinidae
Narcine sp.
Narcine sp. Henle 1834 numbfish
 Rhinopristiformes - Pristidae
Pristis lathami, Anoxypristis sp.
Pristis lathami Galeotti 1837 sawfish
Anoxypristis sp. White and Moy-Thomas 1941 sawfish
 Rhinopristiformes - Rhynchobatidae
Rhynchobatus sp.
Rhynchobatus sp. Müller and Henle 1837 wedgefish
 Myliobatiformes - Rhinopteridae
"Rhinoptera" sp.
"Rhinoptera" sp. Cuvier 1829 cownose ray
 Myliobatiformes -
Coupatezia sp.
Coupatezia sp. Cappetta 1982 stingray
 Myliobatiformes - Myliobatidae
"Myliobatis" sp.
"Myliobatis" sp. Cuvier 1816 eagle ray
sp. 1, sp. 2
 Myliobatiformes - Dasyatidae
Neotrygon sp.
Neotrygon sp. Castelnau 1873 whiptail stingray
 Myliobatiformes - Gymnuridae
Gymnura sp.
Gymnura sp. Van Hasselt 1823 stingray