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- Title
Late Ordovician scolecodonts and chitinozoans from the Pin Valley in Spiti, Himachal Pradesh, northern India.
- Authors
TONAROVÁ, PETRA; SUTTNER, THOMAS J.; HINTS, OLLE; YAN LIANG; ZEMEK, MAREK; KUBAJKO, MICHAL; ZIKMUND, TOMÁŠ; KAISER, JOZEF; KIDO, ERIKA
- Abstract
The end of the Ordovician witnessed major perturbations in the ecosystem, seriously affecting global marine biodiversity. Nevertheless, some marine organism groups and their crisis-bound palaeogeographic distribution are still understudied. Among the outliers are eunicid polychaetes, even though they flourished and diversified extensively during the Ordovician. A collection of seven genera of jaw-bearing polychaetes, including the new ramphoprionid genus Spitiprion Tonarová, Suttner, & Hints, with type new species of Spitiprion khannai Tonarová, Suttner, & Hints, is described here from Katian (Upper Ordovician) deposits of Spiti, northern India. The new species is preserved as isolated maxillae and a jaw cluster, and 3D models of the maxillary apparatus are reconstructed based on submicron-CT. Along with the scolecodonts, a low-diversity assemblage of chitinozoans was recovered, comprising five genera. The most common chitinozoan species are Acanthochitina cf. cancellata and Spinachitina suecica.
- Subjects
HIMACHAL Pradesh (India); INDIA; MARINE biodiversity; GONDWANA (Continent); ECOLOGICAL disturbances; POLYCHAETA; MARINE organisms; CHITINOZOA; MAXILLA
- Publication
Palaeontologia Polonica, 2024, Vol 69, Issue 2, p199
- ISSN
0078-8562
- Publication type
Article
- DOI
10.4202/app.01135.2024