Antarcticeras

Antarcticeras
Temporal range: Early Eocene
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Order: incertae sedis
Genus: Antarcticeras
Doguzhaeva, Bengtson, Reguero and Mörs, 2017
Species:
A. nordenskjoeldi
Binomial name
Antarcticeras nordenskjoeldi
Doguzhaeva, Bengtson, Reguero and Mörs, 2017

Antarcticeras is an extinct genus of enigmatic cephalopod from the Eocene of Antarctica. It contains a single species, A. nordenskjoeldi. It is either considered the last of the "orthocone"-type cephalopods, the only member of its subclass Paracoleoidea & a descendant of the orthoceratids, and a remarkable example of convergent evolution with coleoid cephalopods, or an oegospid squid and a transitional form in the development of the modern squid gladius, of which it is the only preserved example.[1][2]

It is named after Swedish geologist and Antarctic explorer Otto Nordenskjöld.[1]

  1. ^ a b Doguzhaeva, Larisa A.; Bengtson, Stefan; Reguero, Marcelo A.; Mörs, Thomas (2017-03-01). "An Eocene orthocone from Antarctica shows convergent evolution of internally shelled cephalopods". PLOS ONE. 12 (3): e0172169. Bibcode:2017PLoSO..1272169D. doi:10.1371/journal.pone.0172169. ISSN 1932-6203. PMC 5332165. PMID 28248970.
  2. ^ Cite error: The named reference :2 was invoked but never defined (see the help page).