Shaqra Group (middle Dhruma D5,3,top) (Jurassic of Saudi Arabia)

Where: Saudi Arabia (24.2° N, 46.6° E)

• Paleocoordinates: 6.2° S, 45.6° E (Wright 2013)

• coordinate stated in text

• outcrop-level geographic resolution

When: Dhruma Formation (Shaqra Group), Bathonian (168.3 - 166.1 Ma)

Environment/lithology: lagoonal or restricted 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

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 45467: authorized by Franz Fursich, entered by Simone Hicks on 25.10.2004

Creative Commons license: CC0 (CC0)

Taxonomic list

Foraminifera
 Lituolacea - Nautiloculinidae
Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
 Terebratulida - Eudesiidae
"Eudesia cardioides" = Eudesia (Sphriganaria) cardioides
"Eudesia cardioides" = Eudesia (Sphriganaria) cardioides Douvillé 1916
 Terebratulida - Loboidothyrididae
Cephalopoda
 Ammonitida - Stephanoceratidae
"Micromphalites pustuliferus" = Micromphalites pustuliferum Douvillé 1916 ammonite
Micromphalites clydocromphalus Arkell 1952 ammonite
Bivalvia
 Pholadomyida - Pholadomyidae
Pholadomya sp. Sowerby 1823 clam
 Pectinida - Anomiidae
Placunopsis fibrosa Laube 1867 scallop
 Pectinida - Pectinoidae
 Ostreida - Gryphaeidae
Gryphaea bilobata Sowerby 1835 oyster
 Ostreida - Palaeolophidae
"Lopha solitaria" = Actinostreon gregareum
"Lopha solitaria" = Actinostreon gregareum Sowerby 1816 oyster
Echinoidea
 Irregularia -
Bothryopneustes sp. n. sp. Fourtau 1924 sea urchin
=n.sp.1=Echin.
 Salenioida - Acrosaleniidae
Recrosalenia somaliensis Currie 1935 sea urchin
 Pedinoida -