Cephalopoda - Ammonitida - Hildoceratidae
Alternative combinations: Paltarpites paltus, Protogrammoceras (Protogrammoceras) paltum, Protogrammoceras paltum
Belongs to Protogrammoceras (Paltarpites) according to M. Bécaud 2008
See also Bécaud 2006, Elmi et al. 2009, Frebold 1970, Hall and Howarth 1983, Howarth 1992 and Smith and Tipper 1996
Sister taxa: Protogrammoceras (Fieldingiceras), Protogrammoceras (Matteiceras), Protogrammoceras (Protogrammoceras), Protogrammoceras bassanii, Protogrammoceras ionicus, Protogrammoceras normanianum, Protogrammoceras pseudodilectum, Protogrammoceras serotinum, Protogrammoceras sublaeve, Protogrammoceras thevenini, Protogrammoceras (Argutarpites) meneghinii, Protogrammoceras (Paltarpites) madagascariense, Protogrammoceras (Paltarpites) gabillyi, Fuciniceras (Paltarpites) aequiondulatum
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): diameter 124.0, shell diameter 73.9
Distribution:
• Jurassic of Algeria (2 collections), Canada (23: Alberta, British Columbia, Nunavut, Yukon), France (6), Hungary (1), Morocco (1), Spain (3), United States (5: Nevada)
Total: 41 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.