Gelwanajan, 100 (Jurassic of Somalia)

Where: Somalia (10.6° N, 43.0° E: paleocoordinates 10.9° S, 27.9° E)

• coordinate stated in text

• small collection-level geographic resolution

When: basal Member (Sa Wer Formation), Callovian (166.1 - 163.5 Ma)

• sample 100

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified grainstone and lithified marl

• well-bedded yellowish calcarenite and sandy marls, very fine, light gray limestones, sometimes dolomitized

Size class: macrofossils

Preservation: cast

Primary reference: E. Abbate, G. Ficcarelli, C. Pirini Radrizzani, A. Salvietti, D. Torre and A. Turi. 1974. Jurassic sequences from the Somali coast of the Gulf of Aden. Rivista Italiana di Paleontologia e Stratigrafia 80(3):409-478 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 100387: authorized by Wolfgang Kiessling, entered by Uta Merkel on 08.12.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Anthozoa
 Scleractinia - Amphiastreidae
Amphiastrea piriformis
Amphiastrea piriformis Gregory 1900 stony coral
Gastropoda
 Architaenioglossa - Ampullinidae
Globularia coxi, "Ampullella sp." = Ampullina
Globularia coxi Stefanini 1939 snail
"Ampullella sp." = Ampullina Férussac 1822 snail
 Heterostropha - Nerineidae
"Cossmannea somaliensis" = Nerinea somaliensis
"Cossmannea somaliensis" = Nerinea somaliensis Weir 1925 snail
Bivalvia
 Nuculida - Nuculidae
Palaeonucula cuneiformis
Palaeonucula cuneiformis Sowerby 1840 nut clam