Jebel Billum IV-13: Callovian, Yemen

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Ampullinidae
Ampullospira sp. Harris 1897
4 specimens
spelled with current rank as Ampullina (Ampullospira)
Gastropoda - Heterostropha - Nerinellidae
? Nerinella sp. Sharpe 1849
3 specimens
originally entered as "?Nerinella sp."
Bivalvia - Trigoniida - Trigoniidae
Trigonia sp. Bruguière 1789
1 specimen
Bivalvia - Pholadomyida - Pholadomyidae
Bucardiomya aubreyi
1 specimen
spelled with current rank as Pholadomya (Bucardiomya)
Bucardiomya somaliensis (Cox 1935)
4 specimens
Bivalvia - Pholadida - Ceratomyidae
cf. Ceratomya wimmisensis (Gillieron 1886)
3 specimens
originally entered as "Ceratomya cf. wimmisensis"
Bivalvia - Megalodontida - Ceratomyopsidae
Ceratomyopsis somaliensis (Weir 1929)
5 specimens
Bivalvia - Cardiida - Arcticidae
Procyprina hunti
4 specimens
Bivalvia - Mytilida - Mytilidae
cf. Modiolus bipartitus Sowerby 1818
1 specimen
originally entered as "?Modiolus cf. bipartitus"
Brachidontes somalicus
10 specimens
Bivalvia - Arcida - Parallelodontidae
Parallelodon sp. Meek and Worthen 1866
2 specimens
Bivalvia - Ostreida - Pinnidae
Stegoconcha sp. Böhm 1907
few - originally entered as "Stegochoncha sp."
Trichites sp. Lhuyd 1760
few
Bivalvia - Ostreida - Pteriidae
? Pteroperna sp. Lycett 1850
1 specimen
originally entered as "?Pteroperna sp."
Bivalvia - Ostreida - Gryphaeidae
Gryphaea balli (Stefanini 1925)
1 specimen
Nanogyra fourtaui (Stefanini 1925)
1 specimen
synonym of Nanogyra (Nanogyra) nana
originally entered as "Nannogyra fourtaui"
Bivalvia - Ostreida - Eligmidae
Eligmus humei
2 specimens
Eligmus aualites (Stefanini 1925)
2 specimens
Bivalvia - Ostreida - Palaeolophidae
? Actinostreon sp. (Bayle 1878)
1 specimen
original and current combination Lopha (Actinostreon)
originally entered as "?Actinostreon sp."
Bivalvia - Pectinida - Limidae
Plagiostoma sp. Sowerby 1814
Bivalvia - Pectinida - Pectinidae
cf. Eopecten aubreyi
1 specimen
originally entered as "Eopecten cf. aubreyi"
cf. Spondylopecten subpunctatus
2 specimens
originally entered as "Spondylopecten cf. subpunctatus"
Rhynchonellata - Terebratulida - Loboidothyrididae
? Stiphrothyris sp. Buckman 1917
1 specimen
originally entered as "?Stiphronthyris sp."
Arabicella arabis
1 specimen
synonym of Arabatia
cf. Arapsopleurum arabicum Cooper 1989
2 specimens
recombined as Arabatia arabica
originally entered as "Arapsopleurum cf. arabicum"
Arapsopleurum rotundum Cooper 1989
8 specimens
recombined as Arabatia rotunda
Arabicella ovalis Cooper 1989
5 specimens
synonym of Arabatia bihinensis
Rhynchonellata - Terebratulida - Terebratulidae
Arapsothyris angustata Cooper 1989
1 specimen
synonym of Arapsothyris magna
Rhynchonellata - Rhynchonellida - Tetrarhynchiidae
Somalirhynchia sp. Weir 1925
4 specimens
originally entered as "Somalirynchia sp."
cf. Somalirhynchia africana Weir 1925
12 specimens
originally entered as "Somalirynchia cf. africana"
see common names

Geography
Country:Yemen State/province:Wadi Hajar
Coordinates: 14.3° North, 48.4° East (view map)
Paleocoordinates:11.7° South, 31.2° East
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Middle Jurassic
Stage:Callovian 10 m.y. bin:Jurassic 5
*Epoch:Dogger
Key time interval:Callovian
Age range of interval:165.30000 - 161.50000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Shuqra Member:Upper
Stratigraphic resolution:bed
Stratigraphy comments: 27-30 m below top
Lithology and environment
Primary lithology: "shale"
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:2604
Authorizer:M. Patzkowsky Enterer:K. Layou
Modifier:M. Clapham Research group:marine invertebrate
Created:1999-07-09 12:23:25 Last modified:2017-07-27 17:57:56
Access level:database members Released:2001-07-09 12:23:25
Creative Commons license:CC BY
Reference information

Primary reference:

74. 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]