| Antarcticeras Temporal range:
| |
|---|---|
Scientific 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]
- ^ 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.
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