Underwood 1 (Eocene to of Egypt)

Where: Egypt (29.0° N, 30.1° E: paleocoordinates 22.2° N, 25.3° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Midawara Formation, Lutetian to Lutetian (47.8 - 38.0 Ma)

• thin glauconitic seam ?35 m below top of Formation

• formation-level stratigraphic resolution

Environment/lithology: open shallow subtidal; glauconitic sandstone

• alternating glauconitic sandstones, mudstones and micitic and bioclastic limestones (e.g. Strougo, 2008). At least one thick and several thin glauconitic units are present and it is these that contain the rich vertebrate faunas

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 137536: authorized by Mark Uhen, entered by Mark Uhen on 18.12.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Myliobatiformes - Dasyatidae
Dasyatis sp. Rafinesque 1810 whiptail stingray
 Rajiformes - Rhynchobatidae
Rhynchobatus sp. Müller and Henle 1837 wedgefish
 Pristiformes - Pristidae
Pristidae indet. Bonaparte 1838 sawfish
 Carchariniformes - Carcharhinidae
Abdounia sp. Cappetta 1980 requiem shark
Galeocerdo sp. Müller and Henle 1837 tiger shark
cf. Carcharhinus sp. de Blainville 1816 requiem shark