MolluscaBase - Portlandia (Hataiyoldia) tokunagai (Yokoyama, 1925) †

MolluscaBase name details

Portlandia (Hataiyoldia) tokunagai (Yokoyama, 1925) †

AphiaID

1771845 (urn:lsid:marinespecies.org:taxname:1771845)

Classification

Status

unaccepted > superseded combination

Accepted name

Megayoldia tokunagai (Yokoyama, 1925) †

Rank

Species

Parent

Portlandia (Hataiyoldia) Kamada, 1962 † accepted as Megayoldia (Hataiyoldia) Kamada, 1962 † represented as Megayoldia A. E. Verrill & K. J. Bush, 1897

Original name

Yoldia tokunagai Yokoyama, 1925 †

Environment

marine

Fossil range

fossil only

Original description

(of Yoldia tokunagai Yokoyama, 1925 †) Yokoyama, M. (1925). Molluscan remains from the middle part of the Jô-ban coal-field. Journal of the College of Science, Imperial University of Tokyo, 45(7): 1-23.
page(s): 10 [details] Available for editors

[request]

Taxonomic citation

MolluscaBase eds. (2025). MolluscaBase. Portlandia (Hataiyoldia) tokunagai (Yokoyama, 1925) †. Accessed at: https://molluscabase.org/aphia.php?p=taxdetails&id=1771845 on 2025-09-11

Taxonomic edit history

Date

action

2024-09-28 09:30:26Z

created

Dekker, Henk

Licensing

The webpage text is licensed under a Creative Commons Attribution 4.0 License

[taxonomic tree]

Sources (2)

original description (of Yoldia tokunagai Yokoyama, 1925 †) Yokoyama, M. (1925). Molluscan remains from the middle part of the Jô-ban coal-field. Journal of the College of Science, Imperial University of Tokyo, 45(7): 1-23.
page(s): 10 [details] Available for editors

[request]

basis of record Kamada, Y. (1962). Tertiary marine Mollusca from the Joban coal-field, Japan. <em>Palaeontological Society of Japan Special Papers.</em> 8: 1–187, 21 pls., available online at https://www.palaeo-soc-japan.jp/download/SP/SP8.pdf
page(s): 55, pl. 2 figs 9-12 [details] Available for editors

[request]