Underwood 20 (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: Birket Qarun Formation, Priabonian (38.0 - 33.9 Ma)

• top of lowest sand body

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; sandstone

• open marine mudstones

Size classes: macrofossils, mesofossils

Collection methods: 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 137556: 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
 Myliobatiformes - Mobulidae
? Burnhamia sp. Cappetta 1976 stingray
 Myliobatiformes - Myliobatidae
"Myliobatis" sp. Cuvier 1816 eagle ray
sp. 2
Aetobatus sp. Blainville 1816 eagle ray
 Pristiformes - Pristidae
 Lamniformes - Otodontidae
Carcharocles sokolovi mackerel shark
 Lamniformes - Odontaspididae
 Carchariniformes - Carcharhinidae
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
or Sphyrna sp.
 Carchariniformes - Hemigaleidae
Hemipristis sp. Agassiz 1843 ground shark