Cephalopoda - Ceratitida - Trachyceratidae
Alternative combination: Protrachyceras sikanianus
Synonym: Protrachyceras zauwae McLearn 1930
Belongs to Protrachyceras according to E. T. Tozer 1994
Sister taxa: Protrachyceras anatolicum, Protrachyceras archelaus, Protrachyceras cautleyi, Protrachyceras costulatum, Protrachyceras deprati, Protrachyceras guizhouense, Protrachyceras hispanicum, Protrachyceras ibericum, Protrachyceras irregulare, Protrachyceras ladinum, Protrachyceras lermani, Protrachyceras longobardicum, Protrachyceras margaritosum, Protrachyceras mutabile, Protrachyceras negevense, Protrachyceras parinaense, Protrachyceras pseudoarchelaus, Protrachyceras sirenitiforme, Protrachyceras spitiense, Protrachyceras steinmanni, Protrachyceras wahrmani, Trachyceras (Protrachyceras) ralphuanum, Trachyceras (Protrachyceras) springeri, Trachyceras (Protrachyceras) storrsi
Type specimens:
- Protrachyceras sikanianum: GSC 9044. Its type locality is GSC 9131, Beattie Ledge, which is in a Longobardian marine siltstone in the Toad Formation of Canada.
- Protrachyceras zauwae: GSC 9045. Its type locality is GSC 9131, Beattie Ledge, which is in a Longobardian marine siltstone in the Toad Formation of Canada.
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 50.3
Distribution:
• Triassic of Canada (24: British Columbia collections), United States (1: Nevada)
Total: 25 collections including 26 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.