Jebel Billum IV-8 (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)

• 7-10 m below top

• bed-level stratigraphic resolution

Environment/lithology: limestone

• lithology described as limestone

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 2599: 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
Crinoidea
 Millericrinida - Millericrinidae
? Millericrinus sp., ? Angulocrinus sp.
? Millericrinus sp. d'Orbigny 1840 Sea lily
originally entered as "?Millericrinus sp."
? Angulocrinus sp. Rollier 1911 Sea lily
originally entered as "?Angulocrinus sp."
Echinoidea
 Salenioida - Acrosaleniidae
Acrosalenia somaliensis
 Cidaroida -
? Plegiocidaris sp.
? Plegiocidaris sp. Pomel 1883 pencil urchin
originally entered as "?Plegiocidaris sp."
Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
Somalirhynchia sp.
Bivalvia
 Ostreida - Palaeolophidae
Actinostreon solitaria
 Ostreida - Gryphaeidae
"Nanogyra fourtaui" = Nanogyra (Nanogyra) nana
"Nanogyra fourtaui" = Nanogyra (Nanogyra) nana Sowerby 1822 oyster
originally entered as "Nannogyra fourtaui"