Narynsuchus

"Narynsuchus" is an extinct genus of thalattosuchian mesoeucrocodylian. Because it has not yet been formally described, it is currently considered a nomen nudum. The name was first used in 1990 for fossil material found from a formation called the Balabansai Svita, which forms a lens in site FTA-30 of the Sarykamyshsai 1 locality in the Fergana Valley of Kyrgyzstan.[1] The formation dates back to the Callovian stage of the Middle Jurassic.[2] The type species of "Narynsuchus" is "N. ferganensis".

Material belonging to "Narynsuchus" consists of large and characteristically striated teeth as well as a robust left tibia.[3] "Narynsuchus" is thought to have been larger than Sunosuchus, another crocodyliform from Sarykamyshsai 1, due to the greater size of the known elements belonging to the genus.[2] This material was first recognized as belonging to a new crocodyliform in 1989, when it was referred to as an indeterminant species of Peipehsuchus.[3]

References

  1. ↑ Nessov, L. A. (1990). "Late Jurassic labyrinthodont (Amphibia, Labyrinthodontia) among other relict vertebrate groups in northern Fergana". Paleontologicheskii zhurnal. 3: 82–90.
  2. 1 2 Averianov, A. O. (2000). "Sunosuchus sp. (Crocodylomorpha, Goniopholididae) from the Middle Jurassic of Kirghisia". Journal of Vertebrate Paleontology. 20 (4): 776–779. doi:10.1671/0272-4634(2000)020[0776:SSCGFT]2.0.CO;2.
  3. 1 2 Nessov, L. A.; Kaznyshkina, L. F.; Cherepanov, G. O. (1989). "Mesozoic dinosaurians-ceratopses and crocodiles of Central Asia". In Bogdanova, T. N.; Khozatsky, L. I. Theoretical and Applied Aspects of Modern Paleontology. Leningrad: Nauka. pp. 144–154.


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