Jebel Billum I-1 (Cretaceous of Yemen)

Where: Wadi Hajar, Yemen (14.3° N, 48.5° E: paleocoordinates 14.5° S, 33.2° E)

• small collection-level geographic resolution

When: Orbitolina Limestone Member (Qishn Formation), Barremian (129.4 - 125.0 Ma)

Environment/lithology: limestone

• lithology described as limestone

Primary reference: M. K. Howarth and N. J. Morris. 1998. The Jurassic and Lower Cretaceous of Wadi Hajar, southern Yemen. Bulletin of the Natural History Museum (Geology) 54(1):1-32 [M. Patzkowsky/K. Layou/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2576: authorized by Mark Patzkowsky, entered by Karen Layou on 09.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Echinoidea
 Salenioida - Saleniidae
Leptosalenia sp.
Leptosalenia sp. Smith and Wright 1990 sea urchin
 Euechinoidea - Pseudodiadematidae
Tetragramma ? variolare
Tetragramma ? variolare Brongniart 1822 sea urchin
originally entered as "Tetragramma ?variolare"
 Spatangoida - Toxasteridae
aff. Heteraster oblongus
aff. Heteraster oblongus Brogniart 1821 heart urchin
originally entered as "Heteraster aff. oblongus"
 Hemicidaroida -
Allomma sp. n. sp.
Allomma sp. n. sp. sea urchin
originally entered as "Allomma sp. nov."