Wadi Arus III-2 (Jurassic to of Yemen)

Where: Wadi Hajar, Yemen (14.3° N, 48.4° E: paleocoordinates 12.5° S, 31.4° E)

• small collection-level geographic resolution

When: Kilya Member (Naifa Formation), Tithonian to Tithonian (152.1 - 152.1 Ma)

• 15-20 m above lowest exposure

• group of beds-level stratigraphic resolution

Environment/lithology: calcareous shale and carbonate

• lithology described as breadloaf concretions in marls

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 2617: authorized by Mark Patzkowsky, entered by Karen Layou on 12.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Ostreida - Gryphaeidae
cf. Liostrea boloniensis
cf. Liostrea boloniensis oyster
originally entered as "Liostrea cf. boloniensis"
 Ostreida - Aulacomyellidae
Aulacomyella farquharsoni
 Ostreida - Posidoniidae
Posidonia somaliensis
Posidonia somaliensis Cox 1935 oyster
many
 Myalinida - Kolymiidae
"Parainoceramus sp." = Kolymia
"Parainoceramus sp." = Kolymia clam
Cephalopoda
 Ammonitida - Haploceratidae
Haploceras staszycii
Haploceras staszycii Zejszner 1846 ammonite
 Ammonitida - Oppeliidae
cf. Taramelliceras insistens, "Taramelliceras pseudoflexuosum" = Taramelliceras compsum, Glochiceras pseudocarachteis
cf. Taramelliceras insistens ammonite
originally entered as "Taramelliceras cf. insistens"
"Taramelliceras pseudoflexuosum" = Taramelliceras compsum Oppel 1863 ammonite
Glochiceras pseudocarachteis Favre 1880 ammonite
 Ammonitida - Perisphinctidae
Idoceras ahwarense, cf. Idoceras balderum, Nebrodites hospes, Pachysphinctes major, Torquatisphinctes naifaensis
Idoceras ahwarense Howarth 1998 ammonite
cf. Idoceras balderum Oppel 1863 ammonite
originally entered as "Idoceras cf. balderum"
Nebrodites hospes Neumayr 1873 ammonite
Pachysphinctes major Spath 1931 ammonite
Torquatisphinctes naifaensis Howarth 1998 ammonite
 Ammonitida - Ataxioceratidae
Lithacoceras sp., Lithacoceras mombassanum
Lithacoceras sp. Hyatt 1900 ammonite
originally entered as "Lithacoceraas sp."
Lithacoceras mombassanum Dacqué 1910 ammonite
originally entered as "Lithacoceraas mombassanum"
 Ammonitida - Aspidoceratidae
"Sutneria weidmanni" = Sutneria (Enosphinctes) weidmanni, Simaspidoceras argobbae
"Sutneria weidmanni" = Sutneria (Enosphinctes) weidmanni Zeiss 1979 ammonite
Simaspidoceras argobbae Dacque 1905 ammonite
 Ammonoidea -
Laevaptychus sp.
Laevaptychus sp. Trauth 1927 ammonoid aptychus