Biology:Listracanthus
| Listracanthus | |
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| Life reconstruction of Listracanthus hystrix | |
Scientific classification 
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| Missing taxonomy template (fix): | Incertae sedis/Chondrichthyes |
| Family: | †Listracanthidae |
| Genus: | †Listracanthus Newberry & Worthen, 1870 |
| Species[1] | |
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Listracanthus is a genus of extinct chondrichthyan with uncertain affinities. Species of Listracanthus are known primarily from their tremendous, feather-like denticles, which range up to four inches in length. The denticles had a large main spine, from which secondary spines emanate from the sides, like the barbs of a feather or a comb. Listracanthus first appeared in late Carboniferous strata in North America, and eventually disappear from the fossil record some time during the Early Triassic.[1]
The appearance of these sharks are largely unknown. However, author and illustrator Ray Troll mentions in his book, Sharkabet, about how paleontologist Rainer Zangerl once discovered a large shale slab containing a long, eel-like fish covered in long, spine-like denticles characteristic of the genus, only to have it dry out and crumble into dust. As such, according to Zangerl's account, Troll reconstructs Listracanthus as resembling a tremendous, fiercely bristled frill shark.[3]
Martill et al., (2014) created the genus Acanthorhachis for the species formerly known as "Listracanthus" spinatus (Bolton, 1896). They also erected the family Listracanthidae to encompass the two genera.[4]
References
- ↑ 1.0 1.1 1.2 Mutter, R.J.; Neuman, A.G.. "An enigmatic chondrichthyan with Paleozoic affinities from the Lower Triassic of western Canada". Acta Palaeontologica Polonica 51 (2): 271–282. https://www.app.pan.pl/article/item/app51-271.html.
- ↑ Listracanthus on the Paleobiology Database
- ↑ Ray Troll (2002). Sharkabet: A Sea of Sharks from A to Z. Westwinds Press, ISBN:1558685197
- ↑ MARTILL, DAVID M.; DEL STROTHER, PETER J. A.; GALLIEN, FLORENCE (2013-07-08). "Acanthorhachis, a new genus of shark from the Carboniferous (Westphalian) of Yorkshire, England". Geological Magazine 151 (3): 517–533. doi:10.1017/s0016756813000447. ISSN 0016-7568. http://dx.doi.org/10.1017/s0016756813000447.
Wikidata ☰ Q620477 entry
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