Crioselache

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Crioselache
Temporal range: Asselian
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Symmoriiformes
Family: Symmoriidae
Genus: Crioselache
Species:
C. wittigi
Binomial name
Crioselache wittigi
Pauliv et al., 2023

Crioselache is an extinct monotypic genus of symmoriid cartilaginous fish that lived in what is now Brazil during the Asselian stage of the Cisuralian epoch.

The generic name Crioselache comes from the Greek words krýos, meaning cold, and sélakhos, meaning cartilaginous fish, referencing the cold waters that this symmoriiform lived in during the Late Palaeozoic Ice Age. The specific epithet of the type species, Crioselache wittigi, honours the professor Dr. Ehrenfried Othmar Wittig, who discovered and collected the holotype fossil specimen. [1]

References

  1. Pauliv, Victor Eduardo; Dias, Eliseu Vieira; Sedor, Fernando Antonio; Weinschütz, Luiz Carlos; Ribeiro, Ana Maria (23 October 2023). "A new symmoriiform shark and other chondrichthyan teeth from the earliest Permian of southern Brazil". Revista Brasileira de Paleontologia. 26 (3): 227–237. doi:10.4072/rbp.2023.3.07 . Retrieved 30 January 2026 via Revista Brasileira De Paleontologia.