Ferromirum

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Ferromirum
Temporal range: Famennian
Ferromirum fossil.png
Holotype and only known specimen (PIMUZ A/I 4806)
Ferromirum life restoration.jpg
Life restoration
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Symmoriiformes
Genus: Ferromirum
Frey et al. 2020
Type species
Ferromirum oukherbouchi
Frey et al. 2020

Ferromirum is an extinct genus of symmoriiform cartilaginous fish known from the late Devonian (mid Famennian) Ibâouane Formation in the southeastern Anti-Atlas of Morocco, with a single species Ferromirum oukherbouchi. It is known from a single well preserved skeleton, which is of a small individual less than half a metre in length. The jaws and hyoid arch are preserved uncrushed. The skull has large orbits (eye sockets) which have sclerotic rings. The teeth are small and have a cladodont morphology. The body is slender. The first dorsal fin has a smooth fin spine, which curves posteriorly towards its tip. [1]

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References

  1. Frey, Linda; Coates, Michael I.; Tietjen, Kristen; Rücklin, Martin; Klug, Christian (2020-11-17). "A symmoriiform from the Late Devonian of Morocco demonstrates a derived jaw function in ancient chondrichthyans". Communications Biology. 3 (1): 681. doi:10.1038/s42003-020-01394-2. ISSN   2399-3642. PMC   7672094 . PMID   33203942.