Shaqra Group (Tuwaiq Mt. Lst.,T3,4) (Jurassic of Saudi Arabia)

Where: Saudi Arabia (26.0° N, 45.0° E: paleocoordinates 0.3° N, 33.6° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Tuwaiq Mt.Lst. Formation (Shaqra Group), Callovian (166.1 - 163.5 Ma)

Environment/lithology: lagoonal or restricted shallow subtidal; lithified limestone

• The Tuwaiq Mt. Lst. of middle to late Callovian age; locally clayey at the base; this predominantly calcareous formation determines the characteristic relief of central Arabia (Jabal Tuwayq); it is a reef platform.

Size classes: macrofossils, microfossils

Collection methods: bulk, mechanical,

Primary reference: J. Manivit, Y.-M. Le Nindre, and D. Vaslet. 1990. Le Jurassique D`Arabie Centrale. Document du BRGM 4(194):25-519 [F. Fursich/S. Hicks/W. Kiessling]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 47997: authorized by Franz Fursich, entered by Simone Hicks on 09.03.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Heterostropha - Nerineidae
Nerinea sp.
Nerinea sp. Deshayes 1827 snail
Bivalvia
 Lucinida - Lucinidae
Mesomiltha sp.
Mesomiltha sp. Chavan 1938 clam
 Cardiida - Arcticidae
Isocyprina sp.
Isocyprina sp. Röder 1882 clam
 Cardiida - Cardiidae
Protocardia sp.
Protocardia sp. Beyrich 1845 cockle
Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
Kutchirhynchia gregoryi