†Groebericeras bifrons Leanza 1945 (ammonite)
Click image to enlarge. Click to access iDigBio record.
Cephalopoda - Ammonitida - Olcostephanidae
Belongs to Groebericeras according to M. B. Aguirre-Urreta and P. P. Alvarez 1999
Sister taxa: Groebericeras baileyi, Groebericeras rocardi
Type specimen: SEGEMAR 8067, a shell. Its type locality is Mallín Redondo, Sierra Azul, which is in a Berriasian carbonate wackestone in the Chachao Formation of Argentina.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 67.5
Distribution:
• Cretaceous of Argentina (2 collections), Chile (1)
Total: 3 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.