Where: Wadi Hajar, Yemen (14.3° N, 48.5° E: paleocoordinates 12.0° S, 31.1° E)
• small collection-level geographic resolution
When: Billum Member (Naifa Formation), Oxfordian to Oxfordian (163.5 - 152.1 Ma)
• Jebel Billum II section
•Microthyridina beds, 4 m and 9 m above base
• group of beds-level stratigraphic resolution
Environment/lithology: limestone
Size class: macrofossils
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 2586: authorized by Mark Patzkowsky, entered by Karen Layou on 09.07.1999
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Indogrammatodon egertonianus Stoliczka 1865 clam | |
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Camptonectes sp. Meek 1864 scallop | |
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Falcimytilus jurensis mussel | |
Colpomya sp. Ulrich 1893 clam | |
Trigonia sp. Bruguière 1789 clam | |
Rhynchonellata | |
Kallirhynchia sp. Buckman 1917 | |
Microthyridina farquharsoni Muir-Wood 1935 | |
Crinoidea | |
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Echinoidea | |
aff. Pseudocidaris thurmanni Agassiz 1840 sea urchin originally entered as "Pseudocidaris aff. thurmanni"
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