Shaqra Group (upper Dhruma D7 Hisyan Mb.3) (Jurassic of Saudi Arabia)
Where: Saudi Arabia (24.2° N, 46.6° E: paleocoordinates 2.0° S, 34.0° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Hisyan Mb.3 Member (Dhruma Formation), Callovian (166.1 - 163.5 Ma)
Environment/lithology: shallow subtidal; lithified limestone
• The Dhruma Fm essentially is composed of limestones and clayey rocks in its central outcrop zone but passes to detrial facies northwards and southwards top of the reef limestone of Atash Mb.
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 45549: authorized by Franz Fursich, entered by Simone Hicks on 05.11.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
| Gastropoda | |
|
Nerinea sp. Deshayes 1827 snail | |
|
Pseudomelania sp. Pictet and Campiche 1862 snail | |
|
Aporrhais sp. da Costa 1778 snail
Harpagodes sp. Gill 1870 snail | |
|
Akera sp. Muller 1776 snail | |
| Coccolithophyceae | |
"Tetralithus gothicus" = Uniplanarius gothicus
| |
"Ellipsagelosphaera britannica" = Watznaueria, "Ellipsagelosphaera communis" = Watznaueria, Cyclagelosphaera margereli
| |
| Foraminifera | |