Hedenstroemia

Hedenstroemia is an extinct genus of Early Triassic (Olenekian) cephalopods in the ammonoid order Ceratitida. They were nektonic carnivores.[2]

Hedenstroemia
Temporal range: Early Triassic (Olenekian),[1] 251.3–247.2 Ma
↓
[2]
Fossil shell of Hedenstroemia tscherskii from Madagascar, on display at Galerie de paléontologie et d'anatomie comparée in Paris
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
†Ammonoidea
Order:
†Ceratitida
Family:
†Hedenstroemiidae [2]
Genus:
†Hedenstroemia

Waagen, 1895

Species

[2]

  • †Hedenstroemia evoluta Spath 1934
  • †Hedenstroemia hedenstroemi Keyserling 1845
  • †Hedenstroemia tscherskii Popov 1939 (Synonym Hedenstroemia mojsisovicsi

Distribution

Fossils of species within this family have been found in the Early Triassic of Afghanistan, Canada, Oman, Pakistan, Russia and United States.[2]

References
  1. Sepkoski, Jack Sepkoski's Online Genus Database – Cephalopoda
  2. The Paleobiology Database


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