Shaqra Group (Jubaila Lst.) (Jurassic of Saudi Arabia)

Where: Saudi Arabia (22.4° N, 46.5° E: paleocoordinates 4.2° S, 33.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Unite Ju 2 Member (Jubaila Lst. Formation), Kimmeridgian (157.3 - 152.1 Ma)

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

• The Jubaila Lst. of early Kimmeridgian age, consists of limestone incorporating sandy facies to the south and northwest margins on the shelf, characterized commonly by reworking associated with violent terrigenous influx.

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 45691: authorized by Franz Fursich, entered by Simone Hicks on 24.11.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Nodosariata
 Vaginulinida - Vaginulinidae
Lenticulina sp. Lamarck 1804
Foraminifera
 Loftusiacea - Hottingeritidae
 Lituolacea - Nautiloculinidae
Nautiloculina sp. Mohler 1938
Bivalvia
 Ostreida - Pinnidae
Stegoconcha sp. Böhm 1907 oyster
 Pholadida - Ceratomyidae
Ceratomya cf. excentrica Roemer 1836 clam
Crinoidea
 Millericrinida - Millericrinidae
Millericrinus sp. d'Orbigny 1840 Sea lily
 Isocrinida - Isocrinidae
Balanocrinus sp. Agassiz 1847 Sea lily