Jebel Billum IV-16 (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: Middle Member (Shuqra Formation), Callovian (166.1 - 163.5 Ma)

• top 3 m

• group of beds-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 2607: 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
Gastropoda
 Vetigastropoda - Discohelicidae
Discohelix sp.
Discohelix sp. Dunker 1847 snail
 Architaenioglossa - Ampullinidae
"Ampullospira sp." = Ampullina (Ampullospira)
"Ampullospira sp." = Ampullina (Ampullospira) Harris 1897 snail
 Heterostropha - Nerinellidae
? Nerinella sp.
? Nerinella sp. Sharpe 1849 snail
many - originally entered as "?Nerinella sp."
 Heterostropha - Cylindrobullinidae
Cylindrobullina sp.
Cylindrobullina sp. von Ammon 1878 snail
Bivalvia
 Nuculida - Nuculidae
Palaeonucula sp.
Palaeonucula sp. Quenstedt 1930 nut clam
 Trigoniida - Trigoniidae
Trigonia sp.
Trigonia sp. Bruguière 1789 clam
 Lucinida - Lucinidae
Lucina sp.
Lucina sp. Bruguière 1797 clam
 Pholadomyida - Pholadomyidae
"Bucardiomya aubreyi" = Pholadomya (Bucardiomya), Bucardiomya somaliensis
"Bucardiomya aubreyi" = Pholadomya (Bucardiomya) clam
 Pandorida - Laternulidae
? Plectomya sp.
? Plectomya sp. Loriol 1868 clam
originally entered as "?Plectomya sp."
 Pholadida - Ceratomyidae
cf. Ceratomya wimmisensis
cf. Ceratomya wimmisensis Gillieron 1886 clam
originally entered as "Ceratomya cf. wimmisensis"
 Megalodontida - Ceratomyopsidae
Ceratomyopsis somaliensis, Tellurimya sp. n. sp.
Tellurimya sp. n. sp. Cox 1964 clam
"?sp. nov." - originally entered as "Tellurimya ?sp. nov."
 Cardiida - Arcticidae
Procyprina hunti, Pseudotrapezium sp.
Pseudotrapezium sp. Fischer 1887 clam
 Cardiida - Cardiidae
? Tendagurium sp.
? Tendagurium sp. Dietrich 1933 cockle
originally entered as "?Tendagurium sp."
 Mytilida - Mytilidae
"cf. Modiolus imbricatus" = Modiolus (Modiolus) imbricatus, Brachidontes somalicus
"cf. Modiolus imbricatus" = Modiolus (Modiolus) imbricatus Sowerby 1818 mussel
originally entered as "Modiolus cf. imbricatus"
 Ostreida - Eligmidae
Eligmus sp.
Eligmus sp. Eudes-Deslongchampes 1856 oyster
originally entered as "Eligumus sp."
 Ostreida - Palaeolophidae
Actinostreon solitaria
 Pectinida - Limidae
Plagiostoma sp.
Plagiostoma sp. Sowerby 1814 file clam
 Pectinida - Pectinoidae
cf. Eopecten aubreyi, cf. Spondylopecten subpunctatus
cf. Eopecten aubreyi scallop
originally entered as "Eopecten cf. aubreyi"
cf. Spondylopecten subpunctatus scallop
originally entered as "Spondylopecten cf. subpunctatus"
Rhynchonellata
 Terebratulida - Loboidothyrididae
cf. Bihenithyris barringtoni, Cererithyris sp.
cf. Bihenithyris barringtoni Muir-Wood 1935
originally entered as "Bihenithyris cf. barringtoni"
Cererithyris sp. Buckman 1917
 Terebratulida - Zeilleriidae
Ornithella sp.
 Rhynchonellida - Tetrarhynchiidae
cf. Somalirhynchia arabica, Somalirhynchia somalica
cf. Somalirhynchia arabica Cooper 1989
originally entered as "Somalirhynchia cf. arabica"