Listracanthidae

Listracanthidae; Temporal range: Early Carboniferous– Early Triassic PreꞒ Ꞓ O S D C P T J K Pg N
	Artist's rendering of Chondrichthyan Listracanthus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Chondrichthyes
Order:	incertae sedis
Family:	† Listracanthidae
Genera
	Listracanthus ; Acanthorhachis ;

Last updated July 20, 2025

Listracanthidae is a proposed family of extinct cartilaginous fish.^[1] It currently includes the genera Listracanthus and Acanthorhachis . This clade is likely included within Elasmobranchii, but its placement within it is uncertain. Both genera are known from their distinctive spiny dermal dentictles which coat the exterior of their long, slender bodies. They are known from the Viséan to the Early Triassic, mainly from what is now the northern hemisphere.^[2] However, there is a possible occurrence in Australia.^[3]

References

↑ "Fossilworks: Listracanthidae". fossilworks.org. Retrieved 2020-09-12.
↑ Smith, Roy; Martill, David M.; Duffin, Christopher (2017-06-01). "The shark-beds of the Eyam Limestone Formation (Lower Carboniferous, Viséan) of Steeplehouse Quarry, Wirksworth, Derbyshire, UK". Proceedings of the Geologists' Association. 128 (3): 374–400. doi:10.1016/j.pgeola.2017.04.004. ISSN 0016-7878.
↑ Martill, David M.; Strother, Peter J. a. Del; Gallien, Florence (May 2014). "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. S2CID 129437036.

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[1] "Fossilworks: Listracanthidae". fossilworks.org. Retrieved 2020-09-12.

[2] Smith, Roy; Martill, David M.; Duffin, Christopher (2017-06-01). "The shark-beds of the Eyam Limestone Formation (Lower Carboniferous, Viséan) of Steeplehouse Quarry, Wirksworth, Derbyshire, UK". Proceedings of the Geologists' Association. 128 (3): 374–400. doi:10.1016/j.pgeola.2017.04.004. ISSN 0016-7878.

[3] Martill, David M.; Strother, Peter J. a. Del; Gallien, Florence (May 2014). "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. S2CID 129437036.

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