Cephalopoda - Ammonitida - Hildoceratidae
Full 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
Belongs to Nejdia according to G. R. J. Gelin 2022
See also Arkell 1952
Sister taxa: Nejdia arabica, Nejdia bramkampi, Nejdia pseudogruneri
Type specimen: SM F10685, a shell. Its type locality is Locality 57, Jafair Trail (Aramco S-1033), which is in a Bifrons carbonate limestone in the Marrat Formation of Saudi Arabia.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 120.6
Distribution:
• Jurassic of Saudi Arabia (2 collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.