Campanian (Late Cretaceous) nautiloids from Sakhalin, Far east Russia
Authors:
- Elena Yazykova,
- Markus Wilmsen
Abstract
Three nautiloid taxa, Cymatoceras pseudoatlas (Yabe and Shimizu, 1924b), C. cf. bifidum Shimansky, 1975, and C. cf. honmai Matsumoto and Miyauchi, 1983, are recorded from the Campanian of Sakhalin, Far East Russia. These are the first biostratigraphically well dated nautiloids from Sakhalin, which show close affinities to nautiloid faunas from Japan (Hokkaido), the two areas having formed part of a southerly palaeobiogeographical subprovince of the North Pacific Province. Possible relationships between shell form/ornament and preferred habitats of Late Cretaceous nautiloids are discussed. Coarsely ribbed ("cymatoceratid"), depressed nautiloids seem to predominate in nearshore environments. This may be regarded as an adaptive response to increasing predation pressure by durophages, especially in shallow water settings, which may have triggered the development of defensive morphologies (i.e., ornamented, predation-resistant shells) in Cretaceous shallow-water nautiloids.
- Record ID
- USL62a90e43a37143388905a824e970a6f9
- Author
- Journal series
- Acta Palaeontologica Polonica, ISSN 0567-7920, e-ISSN 1732-2421
- Issue year
- 2003
- Vol
- 48
- No
- 3
- Pages
- 481-490
- Publication size in sheets
- 0.50
- Keywords in English
- Campanian, Cretaceous, Cymatoceras, Nautiloidea, Russia, Sakhalin
- ASJC Classification
- Handle.net URL
- hdl.handle.net/20.500.12128/332 Opening in a new tab
- Language
- pol (pl) Polish
- File
-
- File: 1
- Campanian (Late Cretaceous) nautiloids from Sakhalin, Far east Russia, File Wilmsen_Campanian_Late_Cretaceous_nautiloids_from_Sakhalin.pdf / 1 MB
- Wilmsen_Campanian_Late_Cretaceous_nautiloids_from_Sakhalin.pdf
- publication date: 06-02-2024
- Campanian (Late Cretaceous) nautiloids from Sakhalin, Far east Russia, File Wilmsen_Campanian_Late_Cretaceous_nautiloids_from_Sakhalin.pdf / 1 MB
-
- Score (nominal)
- 0
- Score source
- journalList
- Publication indicators
- Uniform Resource Identifier
- https://opus.us.edu.pl/info/article/USL62a90e43a37143388905a824e970a6f9/
- URN
urn:uni-kat-prod:USL62a90e43a37143388905a824e970a6f9
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.