Listracanthidae

{{Short description|An extinct family of cartilaginous fish}}

{{Automatic taxobox

| fossil_range = {{fossil range|Early Carboniferous| Early Triassic}}

| image =

| image_caption =

| taxon = Listracanthidae

| subdivision_ranks = Genera

| subdivision = *Listracanthus

• Acanthorhachis

}}

Listracanthidae is a proposed family of extinct cartilaginous fish.{{Cite web|title=Fossilworks: Listracanthidae|url=https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=289827|access-date=2020-09-12|website=fossilworks.org}} 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.{{Cite journal|last1=Smith|first1=Roy|last2=Martill|first2=David M.|last3=Duffin|first3=Christopher|date=2017-06-01|title=The shark-beds of the Eyam Limestone Formation (Lower Carboniferous, Viséan) of Steeplehouse Quarry, Wirksworth, Derbyshire, UK|url=http://www.sciencedirect.com/science/article/pii/S0016787817300548|journal=Proceedings of the Geologists' Association|language=en|volume=128|issue=3|pages=374–400|doi=10.1016/j.pgeola.2017.04.004|issn=0016-7878}} However, there is a possible occurrence in Australia.{{Cite journal|last1=Martill|first1=David M.|last2=Strother|first2=Peter J. a. Del|last3=Gallien|first3=Florence|date=May 2014|title=Acanthorhachis, a new genus of shark from the Carboniferous (Westphalian) of Yorkshire, England|url=https://www.cambridge.org/core/journals/geological-magazine/article/acanthorhachis-a-new-genus-of-shark-from-the-carboniferous-westphalian-of-yorkshire-england/1D40CE193E24B376784EF752ED8879AC|journal=Geological Magazine|language=en|volume=151|issue=3|pages=517–533|doi=10.1017/S0016756813000447|s2cid=129437036 |issn=0016-7568|url-access=subscription}}