Asiatoceratodus Explained

Asiatoceratodus is an extinct genus of lungfish which lived during the Middle-Late Triassic, Jurassic and Cretaceous periods in what is now Asia (Kyrgyzstan), Africa (Ethiopia, Niger, Algeria, Morocco) and South America (Uruguay and Brazil).

Species

Asiatoceratodus sharovi

Complete skeletons of Asiatoceratodus sharovi first described by Vorobyeva (1967) from the Middle-Late Triassic deposits of Fergana valley in Kyrgyzstan.[1] This species is characterizes by toothed plates with 4 to 5 crests.[2]

Asiaticeratodus tiguidiensis

Another species originally was described from the Late Jurassic site of Algeria as Ceratodus tiguidiensis[3] Later, C. tiguidiensis was assigned to Arganodus by M. Martin (1984)[4] and reassigned by Kemp (1998) to the genus Asiatoceratodus.[5] Despite this, some authors uses Arganodus tiguidiensis in their articles.[6] A. tiguidiensis was also found in the Late Jurassic (Kimmeridgian) Tacuarembo Formation of Uruguay,[7] the northwestern Ethiopian plateau of latest Jurassic (Tithonian) age,[8] the Cretaceous Elrhaz Formation of Niger,[9] the Early Late Cretaceous assemblage of Southeastern Morocco[6] and the Cenomanian Alcântara Formation of Brazil.

Notes and References

  1. Skrzycki, Piotr; Niedźwiedzki, Grzegorz; Tałanda, Mateusz. 2018. Dipnoan remains from the Lower-Middle Triassic of the Holy Cross Mountains and northeastern Poland, with remarks on dipnoan palaeobiogeography. Palaeogeography, Palaeoclimatology, Palaeoecology. 496: 332-345
  2. M. G. Minich. 1977. "Triassic Dipnoi of Eastern European part of USSR" (in Russian). Saratov University Publishing. Page 8.
  3. N. Tabaste. 1963. Étude derestes de poissons du Crétacé saharien [Study of fish remains from the Saharan Cretaceous]. Mélanges Ichthyologiques Dédiés à la Mémoire d’Achille Valenciennes (1794–1865). Mémoires de l’Institute Français d’Afrique Noire 68:437-485
  4. Martin, M., 1984. Révision des Arganodontidés et des Néocératodontidés (Dipnoi,Ceratodontiformes) du Crétacé africain. Neues Jb. Geol. Paläontol. Abh. 169, 225–260.
  5. Kemp, A. 1998. Skull structure in post-paleozoic lungfish. Journal of Vertebrate Paleontology, 18(1): 43-63.
  6. Lionel Cavin, Larbi Boudad, Haiyan Tong, Emilie Läng. 2015. "Taxonomic Composition and Trophic Structure of the Continental Bony Fish Assemblage from the Early Late Cretaceous of Southeastern Morocco." PLoS ONE 10(5):e0125786 DOI:10.1371/journal.pone.0125786
  7. D. Perea, M. Soto, G. Verolavsky, S. Martinez, and M. Ubilla. 2009. A Late Jurassic fossil assemblage in Gondwana: biostratigraphy and correlations of the Tacuarembo Formation, Parana Basin, Uruguay. Journal of South American Earth Sciences 28:168-179
  8. M. B. Goodwin, W. A. Clemens, J. H. Hutchison, C. B. Wood, M. S. Zavada, A. Kemp, C. J. Duffin and C. R. Schaff. 1999. Mesozoic continental vertebrates with associated palynostratigraphic dates from the northwestern Ethiopian plateau. Journal of Vertebrate Paleontology 19(4):728-741
  9. "On the dinosaurian and crocodilian locality of Gadoufaoua (Republic ofNiger)" (PDF). From Mr. Philippe Taquet (1970), presented by Mr. Jean Piveteau.

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