10.5061/DRYAD.HM021
Sano, Shin-Ichi
Fukui Prefectural Dinosaur Museum
Iba, Yasuhiro
Hokkaido University
Skelton, Peter W.
The Open University
Masse, Jean-Pierre
Aix-Marseille University
Aguilar, Yolanda M.
National Museum of Nature and Science
Kase, Tomoki
National Museum
Data from: The evolution of canaliculate rudists in the light of a new
canaliculate polyconitid rudist from the Albian of the Central Pacific
Dryad
dataset
2013
Magallanesia gen. nov.
Polyconitidae
Albian
Praecaprotina yaegashii
Magallanesia canaliculata gen. et sp. nov.
pallial canals
Plagioptychidae
2013-12-23T18:18:30Z
2013-12-23T18:18:30Z
en
https://doi.org/10.1111/pala.12096
74027 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
A new polyconitid rudist, Magallanesia canaliculata gen. et sp. nov., of
probably late Albian age, is described from the Pulangbato area, central
Cebu Island, the Philippines in the western Central Pacific and Takuyo
Daini Seamount, now located in the Northwest Pacific. It is similar to
Praecaprotina Yabe and Nagao, 1926, a Japanese – Central Pacific endemic
genus of late Aptian – early Albian age, but differs in having canals that
developed by partitioning of the large ectomyophoral cavity in the
posterior part of the left valve. Its discovery strengthens the evidence
for Pacific endemism in Albian times. Several other clades of canaliculate
rudists flourished or evolved at the same time in different regions of the
Tethyan Realm, suggesting the presence of common global biological and/or
environmental factors stimulating the evolution of the canals despite such
endemism. Furthermore, the finding of a canaliculate polyconitid provides
evidence in favour of the evolutionary hypothesis of a polyconitid origin
for the Late Cretaceous canaliculate rudist family Plagioptychidae
Douvillé, 1888.
Appendix: Character data and matrix for phylogenetic analysisAppendix:
Character data for phylogenetic analysis of Magallanesia canaliculata gen.
et sp. nov., and of other selected canaliculate forms with TABLE 1:
Character matrix for selected radiolitidine rudist taxa.Appendix.pdf
Cebu Island
Central Pacific
Takuyo Daini Seamount