Sandy mudstone, school section X2, Jardas village (Cretaceous of Libya)

Where: Libya (32.3° N, 21.0° E: paleocoordinates 13.2° N, 17.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Metoicoceras geslinianum ammonoid zone, Qasr Al Abid Formation, Late/Upper Cenomanian (99.6 - 93.5 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; glauconitic, sandy mudstone

• Glauconitic sandy mudstone

Size class: macrofossils

Primary reference: G. I. Abdel-Gawad. 2008. Late Cenomanian ammonites from NE Libya and the western desert of Egypt. Geology of East Libya 3:201-218 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 208627: authorized by Matthew Clapham, entered by Matthew Clapham on 07.04.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

• Separate samples are marked on the stratigraphic column, but the species ranges don't align with the samples. Species are grouped by bed instead.
Bivalvia
 Cardiida - Cardiidae
Granocardium sp. Gabb 1869 cockle
 Cardiida - Veneridae
 Lucinida - Lucinidae
 Trigoniida - Megatrigonioidae
 Ostreida - Gryphaeidae
"Exogyra olisiponensis" = Costagyra olisiponensis, Ilymatogyra africana
"Exogyra olisiponensis" = Costagyra olisiponensis Sharpe 1850 oyster
Ilymatogyra africana Lamarck 1801 oyster
 Pectinida - Neitheoidae
Neithea dutrugei Dutrugei 1862 scallop
Gastropoda
 Sorbeoconcha - Tylostomatidae
Tylostoma cossoni Thomas and Peron 1889 snail