WH 10001 (Eocene of Egypt)

Where: Egypt (29.4° N, 30.2° E: paleocoordinates 24.7° N, 26.1° E)

• coordinate stated in text

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

• The Basilosaurus locality and the entire open plain surrounding it are in the lower part of the Gehannam Formation, deposited during sea level rise following the Pr-1 low sea stand [31]. The Pr-1 low sea stand marks the Bartonian–Priabonian stage/age boundary marking the transition from the middle to the late Eocene. The closest stratigraphic sections are Amin Strougo’s sections S329 and S340 some 5 km south of WH 10001, where the lower Gehannam Formation is in nannoplankton zone NP17 and in planktonic foraminiferal zone P14 [32]. Combining this evidence, the age of WH 10001 is approximately 37.5 Ma [33].

Environment/lithology: coastal; green, yellow, silty claystone

• greenish-yellow silty clay with occasional small bivalves

Size class: macrofossils

Primary reference: M. Voss, M. S. M. Antar, I. S. Zalmout and P. D. Gingerich. 2019. Stomach contents of the archaeocete Basilosaurus isis: Apex predator in oceans of the late Eocene. PLoS One 14(1):e0209021 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 198761: authorized by Mark Uhen, entered by Mark Uhen on 10.01.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

 Lamniformes - Otodontidae
Carcharocles sokolowi mackerel shark
 Pycnodontiformes - Pycnodontidae
 Cetacea - Basilosauridae
Dorudon atrox Andrews 1906 whale
Basilosaurus isis Andrews 1904 whale