northeast of Riyadh, lower Hajajah Mmb, Back reef and restricted lagoon 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: reef, buildup or bioherm; limestone

• massive, bioturbated limestone with low diverse, small dendroid and massive heads of corals and bivalve

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 184845: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 27.03.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia indet. Linnaeus 1758 clam
 Pectinida - Pectinoidae
Pecten sp. Müller 1776 scallop
 Ostreida - Ostreidae
Oscillopha sp. Malchus 1990 oyster
Ostrea sp. Linnaeus 1758 oyster
 Hippuritida - Requieniidae
Apricardia sp. Guéranger 1853 rudist
 Pholadomyida - Pholadomyidae
Pholadomya sp. Sowerby 1823 clam
Gastropoda indet. Cuvier 1797 snail
Stylophora sp. Gill and Caster 1960
 Scleractinia - Amphiastreidae
Cladophyllia sp. Milne-Edwards and Haime 1851 stony coral
 Scleractinia - Actinastreidae
Actinastrea sp. d'Orbigny 1849 stony coral
 Scleractinia - Faviidae
Monticulastraea sp. Duncan 1880 stony coral