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Sassenia

From Wikipedia, the free encyclopedia

Sassenia
Temporal range: Induan-early Olenekian[1]
↓
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
Class: Actinistia
Order: Coelacanthiformes
Family: †Rhabdodermatidae
Genus: †Sassenia
Stensiö, 1921
Type species
†Sassenia tuberculata
Stensiö, 1921
Other species
  • †S.? guttata (Woodward, 1912)
  • †S. groenlandica Forey, 1998

Sassenia is an extinct genus of prehistoric coelacanth lobe-finned fish that lived during the Early Triassic epoch in what is now East Greenland and Svalbard.[2][1]

The type species, Sassenia tuberculata, was first described from Sassendalen (Sassen Valley), Sabine Land, on the island of Spitsbergen, Svalbard, from where the genus name is also derived. Fossils of S. tuberculata and a possible second species, S.? guttata (described originally as Coelacanthus guttatus by Arthur Smith Woodward), were both collected from the Vikinghøgda Formation and are Smithian (early Olenekian) in age. Another species, S. groenlandica, was later discovered in Griesbachian (early Induan) aged layers of the Wordie Creek Formation in Greenland.[3][1][4]

See also

References

  1. ^ a b c Romano, Carlo; Koot, Martha B.; Kogan, Ilja; Brayard, Arnaud; Minikh, Alla V.; Brinkmann, Winand; Bucher, Hugo; Kriwet, Jürgen (2016). "Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution". Biological Reviews. 91 (1): 106–147. doi:10.1111/brv.12161. PMID 25431138. S2CID 5332637.
  2. ^ "Coelacanthiformes". ATW.hu. Retrieved 20 Nov 2012.
  3. ^ Stensiö, Erik (1921). Triassic fishes from Spitzbergen. Vienna: Adolf Holzhausen. pp. xxviii + 307. doi:10.5962/bhl.title.159141. S2CID 83338211.
  4. ^ Forey, Peter L. (1998). History of the coelacanth fishes. London: Chapman & Hall. p. 434. ISBN 9780412784804..


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This page was last edited on 3 March 2024, at 19:28
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