Late Triassic phaeodarian Radiolaria from the Northern Chichibu Belt, Shikoku, Japan

Détails

ID Serval
serval:BIB_C135288AA258
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Late Triassic phaeodarian Radiolaria from the Northern Chichibu Belt, Shikoku, Japan
Périodique
Paleontological Research
Auteur(s)
Hori R.S., Yamakita S., Dumitrica P.
ISSN-L
1342-8144
Statut éditorial
Publié
Date de publication
2009
Peer-reviewed
Oui
Volume
13
Pages
53-63
Langue
anglais
Résumé
A new genus (Triassiphaeodina gen. nov.) and two new species (Medusetta
japonica sp. nov. and Triassiphaeodina niyodoensis sp. nov.) of Late
Triassic (Rhaetian) phaeodarian Radiolaria are described from a
phosphatic nodule found in melange rocks of the Northern Chichibu Belt,
Shikoku, Japan. The Rhaetian age of the nodule and of the phaeodarian
new taxa is based on co-occurring Polycystina Radiolaria, including
Bipedis acrostylus Bragin, Livarella densiporata Kozur and Mostler,
Fontinella primitiva Carter, and Ferresium sp. A of Carter (1993). This
finding shows that phaeodarian Radiolaria were already represented in
Late Triassic oceans, with morphologies similar to those known in the
Late Cretaceous and Cenozoic, from which they have previously been
reported. The new taxa described herein represent the oldest known
phaeodarian fossils.
Création de la notice
14/12/2012 9:31
Dernière modification de la notice
20/08/2019 15:35
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