Biology:Gyracanthides

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Short description: Extinct genus of cartilaginous fishes


Gyracanthides
Temporal range: Pragian–Visean
GyracanthidesDB.jpg
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Gyracanthides

Woodward, 1906
Type species
Gyracanthides murrayi
Woodward, 1906
Species

-G. murrayi Woodward, 1906
-G. warreni White, 1968
-G. hawkinsi Turner et al., 2005

Gyracanthides is an extinct genus of acanthodian gnathostome, known from Devonian to Early Carboniferous.[1][2]

Description

Gyracanthides is large acanthodian, G. murrayi reached the length up to 1.2 m (3 ft 11 in). The pectoral fin spines are large compared to its body, for specimen that have estimated to be 90 cm (35 in) had pectoral fin spines around 40 cm (16 in) long.[1] A recent study suggested that Gyracanthides is closely related to chondrichthyans (as currently delimited), and that acanthodians are paraphyletic.[3]

References

  1. 1.0 1.1 Warren, Anne; Currie, Bryan P.; Burrow, Carole; Turner, Susan (2000). "A redescription and reinterpretation of Gyracanthides murrayi Woodward 1906 (Acanthodii, Gyracanthidae) from the Lower Carboniferous of the Mansfield Basin, Victoria, Australia". Journal of Vertebrate Paleontology 20 (2): 225–242. doi:10.1671/0272-4634(2000)020[0225:ARAROG2.0.CO;2]. 
  2. TURNER, SUSAN; BURROW, CAROLE J.; WARREN, ANNE (2005). "Gyracanthides hawkinsi sp. nov. (Acanthodii, Gyracanthidae) from the Lower Carboniferous of Queensland, Australia, with a Review of Gyracanthid Taxa". Palaeontology 48 (5): 963–1006. doi:10.1111/j.1475-4983.2005.00479.x. Bibcode2005Palgy..48..963T. 
  3. Maisey, John G.; Miller, Randall; Pradel, Alan; Denton, John S.S.; Bronson, Allison; Janvier, Philippe (10 March 2017). "Pectoral Morphology in Doliodus : Bridging the 'Acanthodian'-Chondrichthyan Divide". American Museum Novitates (3875): 1–15. doi:10.1206/3875.1. https://www.biodiversitylibrary.org/bibliography/156710. 

Wikidata ☰ Q21230856 entry