Where: Saudi Arabia (25.0° N, 45.9° E: paleocoordinates 1.1° S, 33.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Tuwaiq Mountain Formation, Middle Callovian (164.7 - 161.2 Ma)

• Erymnoceras fauna, 22.4 m above the base of the Tuwaiq Mountain limestone

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Reposited in the SM

Primary reference: W. J. Arkell. 1952. Jurassic ammonites from Jebel Tuwaiq, central Arabia. Philosophical Transactions of the Royal Society of London, Series B, Biological Sciences 236:241-313 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 184549: authorized by Matthew Clapham, entered by Matthew Clapham on 11.03.2017

Creative Commons license: CC BY (attribution)