- Tytuł:
- First evidence of a neonate dentition in pareiasaurs from the Upper Permian of Russia
- Autorzy:
-
Kordikova, E G
Khlyupin, A J - Powiązania:
- https://bibliotekanauki.pl/articles/22530.pdf
- Data publikacji:
- 2001
- Wydawca:
- Polska Akademia Nauk. Instytut Paleobiologii PAN
- Tematy:
-
locality
Ursulov Formation
Upper Permian
skull fragment
skeleton
adult specimen
neonate
Pareiasauridae
fossil record
Vyatka River
dentition
Russia
Deltavjatia vjatkensis - Opis:
- Finds of juvenile parareptiles are rare in the fossil record. We describe partial upper dentition with large vacuities between bones belonging to a neonate pareiasaur (preserved skull fragment is 22.4 mm long). The specimen was collected within 5 m from a skeleton of an adult specimen of Deltavjatia vjatkensis (Hartmann-Weinberg, 1937) (Pareiasauridae) from red calcareous mudstones in the upper part of the Vanyushonkov Member of Ursulov Formation (Upper Permian, Upper Tatarian substage, Vishkil'skiy regional stage) of Kotel'nich locality, Vyatka River region, Russia. Referral to Deltavjatia vjatkensis is based on the presence of heterodont dentition: spatulate maxillary, triconodont vomerine and conical, palatine and pterygoid teeth located on well-developed palate ridges. This is the first positively identified record of the neonate pareiasaur dentition.
- Źródło:
-
Acta Palaeontologica Polonica; 2001, 46, 4
0567-7920 - Pojawia się w:
- Acta Palaeontologica Polonica
- Dostawca treści:
- Biblioteka Nauki
Artykuł