Mokattam escarpment (Eocene of Egypt)

Where: Egypt (30.0° N, 31.3° E: paleocoordinates 22.4° N, 26.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Mokattam Formation, Lutetian (47.8 - 41.3 Ma)

• Owen's description of "white calcareous stone, quarried of old to an enormous extent" suggests that the nautilids come from the lower part of the Mokattam Formation.

• group of beds-level stratigraphic resolution

Environment/lithology: lagoonal or restricted shallow subtidal; lithified, shelly/skeletal, white limestone

• Mokattam section represents outer lagoon/back-reef, inner lagoon, and shoal deposits (Tawfik et al., 2016).

Size class: macrofossils

Collected by R. Owen; reposited in the BMNH

Primary reference: A. H. Foord. 1891. Catalogue of the Fossil Cephalopoda in the British Museum (Natural History), Part II. Containing the Remainder of the Suborder Nautiloidea, Consisting of the Families Lituitidae, Trochoceratidae, and Nautilidae, with a Supplement 1-407 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 180210: authorized by Matthew Clapham, entered by Matthew Clapham on 11.07.2016

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Nautilida - Hercoglossidae
"Nautilus mokattamensis n. sp." = Cimomia mokattamensis
"Nautilus mokattamensis n. sp." = Cimomia mokattamensis Foord 1891 nautiloid
 Nautilida - Nautilidae
"Nautilus (Hercoglossa) aegyptiacus n. sp." = Angulithes aegyptiacus
"Nautilus (Hercoglossa) aegyptiacus n. sp." = Angulithes aegyptiacus Foord 1891 nautiloid