Jebel Billum IV-12 (Jurassic of Yemen)

Where: Wadi Hajar, Yemen (14.3° N, 48.4° E: paleocoordinates 11.7° S, 31.2° E)

• small collection-level geographic resolution

When: Upper Member (Shuqra Formation), Callovian (166.1 - 163.5 Ma)

• 23-26 m below top

• 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 2603: authorized by Mark Patzkowsky, entered by Karen Layou on 09.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Pseudomelanoidea - Pseudomelaniidae
"Rhabdoconcha sp." = Pseudomelania (Rhabdoconcha)
"Rhabdoconcha sp." = Pseudomelania (Rhabdoconcha) snail
 Architaenioglossa - Ampullinidae
"Ampullospira sp." = Ampullina (Ampullospira)
"Ampullospira sp." = Ampullina (Ampullospira) Harris 1897 snail
Bivalvia
 Arcida - Parallelodontidae
Parallelodon sp. Meek and Worthen 1866 clam
 Pectinida - Limidae
Plagiostoma sp. Sowerby 1814 file clam
Plagiostoma ? harronis Dacque 1905 file clam
originally entered as "Plagiostoma ?harronis"
 Ostreida - Palaeolophidae
 Ostreida - Gryphaeidae
"Nanogyra fourtaui" = Nanogyra (Nanogyra) nana Sowerby 1822 oyster
originally entered as "Nannogyra fourtaui"
Gryphaea balli Stefanini 1925 oyster
 Ostreida - Eligmidae
Eligmus aualites Stefanini 1925 oyster
 Mytilida - Mytilidae
cf. Modiolus bipartitus Sowerby 1818 mussel
originally entered as "Modiolus cf. bipartitus"
 Pholadomyida - Pholadomyidae
 Pholadida - Ceratomyidae
cf. Ceratomya pittieri de Loriol 1883 clam
originally entered as "Ceratomya cf. pittieri"
cf. Ceratomya wimmisensis Gillieron 1886 clam
originally entered as "Ceratomya cf. wimmisensis"
 Megalodontida - Ceratomyopsidae
Ceratomyopsis arabica Cox 1935 clam
 Cardiida - Kalenteridae
Myoconcha sp. Sowerby 1824 clam
 Cardiida - Corbiculidae
? Eocallista krenkeli Cox 1935 clam
originally entered as "?Eocallista krenkeli"
 Cardiida - Arcticidae
 Cardiida - Cardiidae
cf. Tendagurium propebanneiana cockle
originally entered as "Tendagurium cf. propebanneiana"
Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
"Conarosia sp." = Burmirhynchia Buckman 1917
 Terebratulida - Loboidothyrididae
Bihenithyris barringtoni Muir-Wood 1935
Bihenithyris weiri Muir-Wood 1935