Asiatoceratodus

Last updated

Asiatoceratodus
Temporal range: Middle Triassic-early Late Cretaceous
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Genus:
Asiatoceratodus

Vorobyeva, 1967
Type species
Asiatoceratodus sharovi
Vorobyeva, 1967
Other species
  • A. tiguidiensis

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).

Contents

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] [2] This species is characterizes by toothed plates with 4 to 5 crests. [1]

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.

Related Research Articles

<i>Neoceratodus</i> Genus of lungfish

Neoceratodus is a genus of lungfish in the family Neoceratodontidae. The extant Australian lungfish is the only surviving member of this genus, but it was formerly much more widespread, being distributed throughout Africa, Australia, and South America. Species were also much more diverse in body plan; for example, the Cretaceous species Neoceratodus africanus was a gigantic species that coexisted with Spinosaurus in what is now the Kem Kem Formation of Morocco. The earliest fossils from this genus are of Neoceratodus potkooroki from the mid Cretaceous (Albian-Cenomanian) Griman Creek Formation of Australia; remains from the Late Jurassic of Uruguay assigned to this genus probably do not belong to the genus.

<span class="mw-page-title-main">Jameson Land</span>

Jameson Land is a peninsula in eastern Greenland.

<span class="mw-page-title-main">Gnathorhizidae</span> Extinct family of fishes

The Gnathorhizidae are an extinct family of lungfish that lived from the late Carboniferous until the middle Triassic. Gnathorhizid fossils have been found in North America, Madagascar, Australia, and possibly Eastern Europe and South Africa. They are characterized by high-ridged toothplates that form cutting blades and a reduction in cranial bones.

<i>Ceratodus</i> Extinct genus of fishes

Ceratodus is an extinct genus of lungfish. It has been described as a "catch all", and a "form genus" used to refer to the remains of a variety of lungfish belonging to the extinct family Ceratodontidae. Fossil evidence dates back to the Early Triassic. A wide range of fossil species from different time periods have been found around the world in places such as the United States, Argentina, Greenland, England, Germany, Egypt, Madagascar, China, and Australia. Ceratodus is believed to have become extinct sometime around the beginning of the Eocene Epoch.

Elosuchus is an extinct genus of neosuchian crocodyliform that lived during the Middle Cretaceous of what is now Africa.

<i>Arganodus</i> Extinct genus of fishes

Arganodus is an extinct genus of Ceratodontidae (lungfish). It´s fossils where found first at Tizi n'Maâchou in the Marrakech area of Morocco, in rocks of the Timezgadiouine Formation, that belong to the Argana Group. Other specimens have been found in the Redonda Formation, New Mexico, the Anoual Formation of Morocco, the Tacuarembó Formation of Uruguay, and the Cumnock Formation, North Carolina, although the North Carolinian specimens are smaller than most recorded specimens. Fossils have also been uncovered in the Petrified Forest National Park. It was first named by Martin in 1979, and contains two species, A. dorotheae and A. atlantis. In 1984, Martin described Arganodus tiguidiensis from Elrhaz Formation of Niger extending its stratigraphic range from the Upper Jurassic to the Cenomanian. Later, this species was assigned to the genus Asiatoceratodus by Kemp (1998).

Ferganoceratodus is a genus of prehistoric lungfish known from the Mesozoic of Asia. Based on morphological evidence, it was previously assumed to be a basal member of the Ceratodontiformes with no close relatives, but more recent studies incorporating both phylogenetic and morphological evidence have found it to be the sister group of the Neoceratodontidae.

<i>Gnathorhiza</i> Extinct genus of fishes

Gnathorhiza is an extinct genus of prehistoric lobe-finned fish (lungfish) which lived from the Carboniferous period to the Early Triassic epoch. It is the only known lungfish genus to have crossed the Permo-Triassic boundary. Several species have been described, ranging in size from 5 to 50 centimeters.

Mioceratodus is an extinct genus of lungfish in the family Neoceratodontidae, which also contains the extant Queensland lungfish. It is known only from Oligocene and Miocene-aged sediments in Australia, although phylogenetic evidence supports it having first diverged from its closest relative, Neoceratodus, during the Late Jurassic or Early Cretaceous period.

Metaceratodus is an extinct genus of prehistoric lungfish in the family Ceratodontidae, with an indeterminate specimen known from the Late Triassic (Norian)-aged Lissauer Breccia of Poland and more complete specimens known from the Late Cretaceous of Queensland, Australia and Argentina. The genus was named and described by Frederick Chapman in 1914.

<i>Ptychoceratodus</i> Extinct genus of fishes

Ptychoceratodus is an extinct genus of lungfish living from Early Triassic to Middle Jurassic. It was established by Otto Jaekel for one species, transferred from Ceratodus genus. Type species is P. serratus from the Middle Triassic of Switzerland and Germany. Ptychoceratodus had two pairs of massive dental plates, bearing 4-6 acute ridges. Its skull roof was composed from massive, plate-like bones. In the central part of skull roof was localized an unossified fenestra. Most of the Ptychoceratodus findings are isolated dental plates, some associated with jaws. Other parts of skull or postcranial skeleton are relatively rarely found as fossils. The anatomy of skull is the best recognized in P. serratus, whereas less complete cranial material is available also for P. concinuus, P. phillipsi, and P. rectangulus. Although Ptychoceratodus is known exclusively from the Triassic and Jurassic, there were also Cretaceous specimens referred to this genus. However, they are more often regarded as representants of Metaceratodus. Ptychoceratodus is the only member of the family Ptychoceratodontidae. The first named species is P. phillipsi by Louis Agassiz in 1837 as a species of Ceratodus and later moved to Ptychoceratodus genus. Occurrences of Ptychoceratodus come mainly from Europe. However, occurrences from other continents suggest it was dispersed globally during the Triassic. After 2010, the new fossil material behind the Europe was reported from South America, India, and Greenland

<span class="mw-page-title-main">Elrhaz Formation</span>

The Elrhaz Formation is a geological formation in Niger, West Africa.

This list of fossil fishes described in 2014 is a list of new taxa of placoderms, fossil cartilaginous fishes and bony fishess of every kind that have been described during the year 2014, as well as other significant discoveries and events related to paleontology of fishes that occurred in the year 2014. The list only includes taxa at the level of genus or species.

This list of fossil fishes described in 2016 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes and other fishes of every kind that have been described during the year 2016, as well as other significant discoveries and events related to paleontology of fishes that occurred in the year 2016. The list only includes taxa at the level of genus or species.

This list of fossil fish described in 2018 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fish, bony fish, and other fish of every kind that are scheduled to be described during the year 2018, as well as other significant discoveries and events related to paleontology of fish that are scheduled to occur in 2018.

Tacuarembemys is an extinct genus of continental turtle from South America. It contains a single species, T. kusterae. The genus was described based on the external mold of a carapace and associated shell bone fragments found near the city of Tacuarembó, Uruguay. This fossil was found on the Tacuarembó Formation, whose estimated age ranges from late Jurassic to earliest Cretaceous.

The Tacuarembó Formation is a Late Jurassic (Kimmeridgian) geologic formation of the eponymous department in northern Uruguay. The fluvial to lacustrine sandstones, siltstones and mudstones preserve ichnofossils, turtles, crocodylomorphs, fish and invertebrates.

This list of fossil fish research presented in 2022 is a list of new taxa of jawless vertebrates, placoderms, acanthodians, fossil cartilaginous fishes, bony fishes, and other fishes that were described during the year, as well as other significant discoveries and events related to paleoichthyology that occurred in 2022.

References

  1. 1 2 M. G. Minich. 1977. "Triassic Dipnoi of Eastern European part of USSR" (in Russian). Saratov University Publishing. Page 8.
  2. 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
  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. 1 2 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 of Niger)" (PDF). From Mr. Philippe Taquet (1970), presented by Mr. Jean Piveteau.