Shaqra Group (Tuwaiq Mt. Lst.,T1,2) (Jurassic of Saudi Arabia)

Where: Saudi Arabia (22.6° N, 46.5° E: paleocoordinates 3.4° S, 33.3° 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 47867: authorized by Franz Fursich, entered by Simone Hicks on 06.03.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Foraminifera
 Involutinina - Trocholinidae
Trocholina ex gr. elongata
 Textulariina - Pfenderinidae
Praekurnubia crusei, Kurnubia bramkampi
Ostracoda
 Podocopida -
Afrocytheridea faveolata
Gastropoda
 Heterostropha - Nerineidae
Nerinea sp.
Nerinea sp. Deshayes 1827 snail
Bivalvia
 Ostreida - Gryphaeidae
Gryphaea balli, Gryphaea costellata
Gryphaea balli Stefanini 1925 oyster
Gryphaea costellata Douvillé 1916 oyster
 Ostreida - Eligmidae
Eligmus aff. rollandi
Eligmus aff. rollandi Douvillé 1907 oyster