Where: Saudi Arabia (25.0° N, 45.7° E: paleocoordinates 0.8° S, 33.8° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Dhruma Formation, Early/Lower Bajocian (171.6 - 168.4 Ma)

• Dorsetensia fauna, weak limestone layer 18.2 m above the base of the Dhruma and about 5.0 m below capping sandstone in a low escarpment

• 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 184541: authorized by Matthew Clapham, entered by Matthew Clapham on 11.03.2017

Creative Commons license: CC BY (attribution)