Jebel Billum IV-4 (Jurassic of Yemen)

Where: Wadi Hajar, Yemen (14.3° N, 48.4° E: paleocoordinates 11.8° S, 31.0° E)

• small collection-level geographic resolution

When: Madbi Formation, Oxfordian (163.5 - 157.3 Ma)

• Jebel Billum IV section

•upper storm bed, 46-48 m above base

• bed-level stratigraphic resolution

Environment/lithology: marine; shale

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 2595: 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
Bivalvia
 Arcida - Parallelodontidae
Indogrammatodon egertonianus
Indogrammatodon egertonianus Stoliczka 1865 clam
 Ostreida - Posidoniidae
Posidonia somaliensis
Posidonia somaliensis Cox 1935 oyster
few
 Ostreida - Palaeolophidae
aff. Actinostreon solitaria
aff. Actinostreon solitaria oyster
originally entered as "Actinostreon aff. solitaria"
 Ostreida - Gryphaeidae
Deltoideum delta, "Nanogyra fourtaui" = Nanogyra (Nanogyra) nana
Deltoideum delta Smith 1817 oyster
"Nanogyra fourtaui" = Nanogyra (Nanogyra) nana Sowerby 1822 oyster
originally entered as "Nannogyra fourtaui"
 Pectinida - Limidae
? Plagiostoma sp.
? Plagiostoma sp. Sowerby 1814 file clam
few - originally entered as "?Plagiostoma sp."
 Pectinida - Pectinoidae
Eopecten sp.
Eopecten sp. Douvillé 1897 scallop
 Mytilida - Mytilidae
cf. Modiolus bipartitus
cf. Modiolus bipartitus Sowerby 1818 mussel
originally entered as "Modiolus cf. bipartitus"
Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
Somalirhynchia arabica
Somalirhynchia arabica Cooper 1989
originally entered as "Somalirhychia arabica"
 Terebratulida - Loboidothyrididae
Bihenithyris sp.
Bihenithyris sp. Muir-Wood 1935
 Terebratulida - Zeilleriidae
Microthyridina farquharsoni