- Tytuł:
- New saurichthyid actinopterygian fishes from the Anisian (Middle Triassic) of southwestern China
- Autorzy:
-
Feixiang, W.
Yuanlin, S.
Guanghui, X.
Weicheng, H.
Dayong, J.
Zuoyu, S. - Powiązania:
- https://bibliotekanauki.pl/articles/20077.pdf
- Data publikacji:
- 2011
- Wydawca:
- Polska Akademia Nauk. Instytut Paleobiologii PAN
- Tematy:
-
saurichthyid
actinopterygian fish
fish
Anisian
Middle Triassic
Triassic
paleontology
China
Actinopterygii
Saurichthyidae
Sinosaurichthys
Guizhou Province
Yunnan Province - Opis:
- A new genus Sinosaurichthys of the Saurichthyidae with three new species, S. longipectoralis, S. longimedialis, and S. minuta, are described and compared with Saurichthys. The new genus is represented by more than a hundred almost complete skeletons, collected from the strata corresponding to the Upper Member of the Guanling Formation (Pelsonian, Anisian, Middle Triassic) of two localities: Yangjuan of Panxian County, Guizhou Province, and Dawazi of Luoping, Yunnan Province, China. Sinosaurichthys differs from Saurichthys in having an unusual dermal pectoral girdle, high insertion of pectoral fin, relatively dorsally positioned axial skeleton in the abdominal region, and in the absence of branchiostegal rays. These differences are supposed to reflect the different life styles between the two genera. Sinosaurichthys, like the extant needlefish, probably has a better ability for cruising in surface water than Saurichthys. In addition, these species of Sinosaurichthys are compared, and their morphological differences also probably reflect individual adaptations for different habitats at the two localities.
- Źródło:
-
Acta Palaeontologica Polonica; 2011, 56, 3
0567-7920 - Pojawia się w:
- Acta Palaeontologica Polonica
- Dostawca treści:
- Biblioteka Nauki
Artykuł