Lissodus is an extinctgenus of hybodont. While fossils attributed to this genus are known spanning from the latest Devonian (Famennian) to the very end of the Cretaceous (Maastrichtian),[2] others consider the genus to have a more narrow range, spanning from the Early Triassic to the end of the Early Cretaceous (Albian).[3]Lissodus is often placed in the family Lonchidiidae, though other authors consider it incertae sedis within Hybodontiformes. Lonchidion has often been regarded as synonymous, but many recent authors consider it to be a distinct but closely related genus.[3]
Lissodus sensu lato (including Lonchidion) has been estimated to have had a body size range of 15–50 centimetres (0.49–1.64 ft).[2] Typical dental features of this genus include a single central cusp, base of teeth expanding towards the lingual side and riddled with vascular canals.[1] The shape of the main cusp and large canal openings are similar to those of the Cassisodus margaritae although latter has cusplets on both sides of the crown.[1] The low crowned teeth suggest that Lissodus was a bottom dweller that fed by crushing hard shelled organisms (durophagy).[2]
Distributionedit
Remains of Lissodus sensu lato have been found worldwide in both marine and freshwater environments.[2]
One tooth of indeterminate Lissodus species is known from the Tournaisian Laurel Formation, Australia.[1]
Preserved skull and postcranial remains are known for the Early Triassic species L. cassangensis and L. africanus from Angola and South Africa respectively.[3]
^ abcdBrett Roelofs, Milo Barham, Arthur J. Mory, Kate Trinajstics (January 2016). "Late Devonian and Early Carboniferous chondrichthyans from the Fairfield Group, Canning Basin, Western Australia". Palaeontologia Electronica. 19 (1): 1–28. doi:10.26879/583.{{cite journal}}: CS1 maint: multiple names: authors list (link)
^ abcdJ. Fischer Brief synopsis of the hybodont form taxon Lissodus Brough, 1935, with remarks on the environment and associated fauna Freiberger Forschungshefte Serie C, 528 (2008), pp. 1-23
^ abcJan Rees & Charlie J. Underwood (2002). "The status of the shark genus Lissodus Brough, 1935, and the position of nominal Lissodus species within the Hybodontoidea (Selachii)" (PDF). Journal of Vertebrate Paleontology. 22 (3): 471–479. doi:10.1671/0272-4634(2002)022[0471:tsotsg]2.0.co;2. JSTOR 4524243. S2CID 13836075.
lissodus, extinct, genus, hybodont, while, fossils, attributed, this, genus, known, spanning, from, latest, devonian, famennian, very, cretaceous, maastrichtian, others, consider, genus, have, more, narrow, range, spanning, from, early, triassic, early, cretac. Lissodus is an extinct genus of hybodont While fossils attributed to this genus are known spanning from the latest Devonian Famennian to the very end of the Cretaceous Maastrichtian 2 others consider the genus to have a more narrow range spanning from the Early Triassic to the end of the Early Cretaceous Albian 3 Lissodus is often placed in the family Lonchidiidae though other authors consider it incertae sedis within Hybodontiformes Lonchidion has often been regarded as synonymous but many recent authors consider it to be a distinct but closely related genus 3 LissodusTemporal range Early Carboniferous Albian PreꞒ Ꞓ O S D C P T J K Pg N Teeth of Lissodus hasleensis Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Chondrichthyes Subclass Elasmobranchii Order Hybodontiformes Family Lonchidiidae Genus LissodusBrough 1935 Type species Lissodus africanus Broom 1909 1 Contents 1 Description 2 Distribution 3 Species 4 ReferencesDescription editLissodus sensu lato including Lonchidion has been estimated to have had a body size range of 15 50 centimetres 0 49 1 64 ft 2 Typical dental features of this genus include a single central cusp base of teeth expanding towards the lingual side and riddled with vascular canals 1 The shape of the main cusp and large canal openings are similar to those of the Cassisodus margaritae although latter has cusplets on both sides of the crown 1 The low crowned teeth suggest that Lissodus was a bottom dweller that fed by crushing hard shelled organisms durophagy 2 Distribution editRemains of Lissodus sensu lato have been found worldwide in both marine and freshwater environments 2 One tooth of indeterminate Lissodus species is known from the Tournaisian Laurel Formation Australia 1 Preserved skull and postcranial remains are known for the Early Triassic species L cassangensis and L africanus from Angola and South Africa respectively 3 Species editKnown species 4 Lissodus africanus Lissodus angulatus Lissodus bartheli Lissodus cassangensis Lissodus cristatus Lissodus guenneguesi Lissodus hasleensis Lissodus johnsonorum Lissodus leiodus Lissodus leiopleurus Lissodus lepagei Lissodus levis Lissodus minimus Lissodus wardi Lissodus xiushuiensisReferences edit a b c d Brett Roelofs Milo Barham Arthur J Mory Kate Trinajstics January 2016 Late Devonian and Early Carboniferous chondrichthyans from the Fairfield Group Canning Basin Western Australia Palaeontologia Electronica 19 1 1 28 doi 10 26879 583 a href Template Cite journal html title Template Cite journal cite journal a CS1 maint multiple names authors list link a b c d J Fischer Brief synopsis of the hybodont form taxon Lissodus Brough 1935 with remarks on the environment and associated fauna Freiberger Forschungshefte Serie C 528 2008 pp 1 23 a b c Jan Rees amp Charlie J Underwood 2002 The status of the shark genus Lissodus Brough 1935 and the position of nominal Lissodus species within the Hybodontoidea Selachii PDF Journal of Vertebrate Paleontology 22 3 471 479 doi 10 1671 0272 4634 2002 022 0471 tsotsg 2 0 co 2 JSTOR 4524243 S2CID 13836075 PBDB paleobiodb org Retrieved 2024 01 22 nbsp This article about a prehistoric cartilaginous fish is a stub You can help Wikipedia by expanding it vte nbsp This article about a Triassic fish is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Lissodus amp oldid 1217601082, wikipedia, wiki, book, books, library,
