northeast of Riyadh, lower Hajajah Member, Intra-shelf basin facies (Cretaceous of Saudi Arabia)

Where: Saudi Arabia (25.2° N, 46.8° E: paleocoordinates 4.8° N, 38.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Hajajah Member (Aruma Formation), Late/Upper Campanian (83.5 - 70.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: basin reef; shale and mudstone

• lowermost part of Hajajah Member and the base of the second depositional cycle (16 m and 30 m respectively)
• fossiliferous green shale and mudstone

Size class: macrofossils

Collection methods: peel or thin section,

Primary reference: A. S. El-Sorogy, A. Ismail, M. Youssef and H. Nour. 2016. Facies development and paleoenvironment of the Hajajah Limestone Member, Aruma Formation, central Saudi Arabia. Journal of African Earth Sciences [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184843: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 27.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Ostracoda
 Podocopida - Hemicytheridae
Hermanites sp.
Hermanites sp. Puri 1955 ostracod
 Podocopida - Bythocyprididae
Bythocypris cf. windhami, Bythocypris sp.
Bythocypris sp. Brady 1880 ostracod
 Podocopida - Bairdiidae
Bairdoppilata pondera, Bairdoppilata magna
 Podocopida -
Kaesleria bilirata, Kaesleria trahea
 Podocopida - Xestoleberididae
Uroleberis sp., Xestoleberis tripolensis
Uroleberis sp. Triebel 1958 ostracod
 Podocopida - Brachycytheridae
Digmocythere sp.
 Podocopida - Trachyleberididae
Brachycythere tumida, Brachycythere undosa
 Platycopida - Cytherellidae
Cytherella cf. austinensis
Foraminifera
 Orbitoidacea - Orbitoididae
Orbitoides sp., Omphalocyclus sp.
 Rotaliina - Lepitorbitoididae
Lepidorbitoides sp.
 Textulariina - Loftusiidae
Loftusia sp.