Aphaneramma

Aphaneramma is an extinct genus of marine temnospondyl amphibian. It lived during the Early Triassic epoch, approximately 252–247 Ma ago, and had a global distribution.

Aphaneramma
Temporal range:
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: †Temnospondyli
Suborder: †Stereospondyli
Family: †Trematosauridae
Subfamily: †Lonchorhynchinae
Genus: †Aphaneramma
Woodward, 1904
Type species
†Aphaneramma rostratum
Woodward, 1904
Other species
  • †A. gavialimimus Fortuny et al., 2017
  • †A. kokeni (von Huene, 1920)
Synonyms

Halobatrachus Hammer, 1987

Early Triassic and Anisian marine predators:[1] 7. Aphaneramma

Fossils have been found in the Mianwali Formation of Pakistan,[2] Madagascar,[3] the Zhitkov Formation of Russia,[4] and the Vikinghøgda Formation (Kongressfjellet Formation) of Svalbard (Norway).[5]

Aphaneramma had a skull about 40 centimetres (16 in) in length.[3] Its jaws were very long, similar to the extant gharial's, and lined with small teeth. This adaptation suggests that it may have preyed on fish. A marine lifestyle for this animal was proposed.[1]

Aphaneramma is closely related to Cosgriffius from North America.

References
  1. Scheyer, Torsten M.; Romano, Carlo; Jenks, Jim; Bucher, Hugo (19 March 2014). "Early Triassic Marine Biotic Recovery: The Predators' Perspective". PLOS ONE. 9 (3): e88987. Bibcode:2014PLoSO...988987S. doi:10.1371/journal.pone.0088987. PMC 3960099. PMID 24647136.
  2. Maisch, Michael W. (31 March 2020). "Aphaneramma kokeni (von Huene, 1920), a lonchorhynchine trematosaurid (Amphibia: Temnospondyli) from the Lower Triassic of Pakistan". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 295 (3): 211–241. doi:10.1127/njgpa/2020/0879. S2CID 216325073.
  3. Fortuny, Josep; Gastou, Stéphanie; Esquillié, François; Ranivoharimanana, Lovasoa; Steyer, Sébastien (29 June 2017). "A new extreme longirostrine temnospondyl from the Triassic of Madagascar: phylogenetic and palaeobiogeographical implications for trematosaurids". Journal of Systematic Palaeontology. 16 (8): 675–688. doi:10.1080/14772019.2017.1335805. S2CID 134191156.
  4. Zhitkov Formation at Fossilworks.org
  5. Woodward, Arthur Smith (1904). "On two new labyrinthodont skulls of the genera Capitosaurus and Aphaneramma". Proceedings of the Zoological Society of London. 1904 (3): 170–176. doi:10.1111/j.1469-7998.1904.tb08328.x.


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