Cephalopoda - Ceratitida - Gyronitidae
Alternative combination: Ophiceras discus
Synonyms: Ambites impressus Waagen 1895, Ambites magnumbilicatus Waagen 1895, Koninckites impressus Waagen 1895, Meekoceras hodgsoni Diener 1897, Prionolobus impressus Waagen 1895, Prionolobus tulungensis Wang and He 1976
Full reference: W. Waagen. 1895. Fossils from the Ceratite Formation. Salt Range Fossils, Palaeontologia Indica, Series 13 2(1):1-323
Belongs to Ambites according to X. Dai et al. 2023
See also Diener 1897, Spath 1934, Waagen 1895, Ware and Bucher 2018, Ware and Bucher 2018 and Zakharov and Mu 2007
Sister taxa: Ambites atavus, Ambites bjerageri, Ambites bojeseni, Ambites ferruginus, Ambites frechi, Ambites impressa, Ambites lilangensis, Ambites nyingmai, Ambites radiatus, Ambites rupestris, Ambites subradiatus, Ambites superior, Ambites tenuis, Ambites wissneri
Type specimens:
- Ambites discus: Its type locality is Amb, Ceratite Marls, Salt Range, which is in a Dienerian marine marl in the Ceratite Marls Formation of Pakistan
- Ambites impressus: Its type locality is Virgal, Lower Ceratite Limestone, Salt Range, which is in a Dienerian marine limestone in the Lower Ceratite Limestone Formation of Pakistan.
- Ambites magnumbilicatus: Its type locality is Amb, Ceratite Marls, Salt Range, which is in a Dienerian marine marl in the Ceratite Marls Formation of Pakistan.
- Meekoceras hodgsoni: Its type locality is Shalshal Cliff near Rimkin Paiar, Otoceras Beds, which is in a Griesbachian carbonate limestone in India.
- Prionolobus tulungensis:
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 49.5
Distribution:
• Triassic of China (8 collections), India (6), Madagascar (1), Pakistan (8), the Russian Federation (2)
Total: 25 collections including 26 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.