Haimirichia Explained

Haimirichia is an extinct genus of mackerel shark from the late Cenomanian epoch of the Cretaceous period.[1] It currently contains a single species: H. amonensis. Teeth now assigned to this genus were originally attributed to the Odontaspis. Exquisitely preserved remains from the Akrabou Formation Lagerstätte in Agoult, Morocco allowed the species to be moved into a new genus and family.[2] Microscopic study revealed specialized dermal denticles likely used in electroreception.[3] Its tooth and head design suggest a lifestyle similar to the extant Triaenodon obesus, a novel one for Lamniformes. Roulletia has a similar tooth design and may be part of the same family.

Notes and References

  1. Web site: Haimirichia amonensis Shark-References. 2020-11-26. shark-references.com. en.
  2. Vullo. R.. Guinot. G.. Barbe. G.. 2016. The first articulated specimen of the Cretaceous mackerel shark Haimirichia amonensis gen. nov.(Haimirichiidae fam. nov.) reveals a novel ecomorphological adaptation within the Lamniformes (Elasmobranchii). Journal of Systematic Palaeontology. 14. 12. 1003–1024. 10.1080/14772019.2015.1137983. 2016JSPal..14.1003V . 85788544. 2020-11-26.
  3. Vullo. Romain. Guinot. Guillaume. 2015-09-29. Denticle-embedded ampullary organs in a Cretaceous shark provide unique insight into the evolution of elasmobranch electroreceptors. The Science of Nature. en. 102. 9. 65. 10.1007/s00114-015-1315-2. 26420508. 2015SciNa.102...65V . 8912042. 1432-1904.

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