Antarcticeras
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.
| 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 | |
It is named after Swedish geologist and Antarctic explorer Otto Nordenskjöld.
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