Arctomeekoceras is a genus from the ammonoid order Ceratitida

Ceratitida

The Ceratitida is an order that contains almost all ammonoid cephalopod genera from the Triassic as well as ancestral forms from the Upper Permian, the exception being the phylloceratids which gave rise to the great diversity of post Triassic ammonites....

 from the Early Triassic, included in the Meekoceratidae; a family characterized by more of less involute, compressed, discoidal forms that are smooth or weakly ornamented and have a ceratitic suture with broad saddles.

Arctomeekoceras lived from about 250 to about 245 m.y.a and has been found in arctic Canada (Nunavut) in the Blind Fiord Formation associated with Neomeekoceras, Olenikites, and Pseudosageceras; and in far northern Siberia, Russian Federation, associated with Boreomeekoceras, Pseudosageceras , Olenikites, Keyserlingites, Sibirites, Nordophiceras, Olenekoceras, and Subolenekites

References

• Arkell, et al. Mesozoic Ammonoidea; Treatise on Invertebrate Paleontology, Part L, Ammonoidea. Geol Soc of America and Univ Kansas press, 1957, R. C. Moore (ed)
• Arctomeekoceas - Paleobiology.
• Axel Heiberg Island Paleofauna. http://paleodb.org/cgi-bin/bridge.pl?action=displayCollResults&taxon_no=14035&max_interval=Triassic&country=Canada&state=Nunavut&is_real_user=1&basic=yes&type=view&match_subgenera=1
• Mengilyakh Creek Paleofauna http://paleodb.org/cgi-bin/bridge.pl?action=displayCollResults&taxon_no=14035&max_interval=Triassic&country=Russian%20Federation&is_real_user=1&basic=yes&type=view&match_subgenera=1