WoRMS source details
Calliostoma subunicum Yokoyama, 1932 † (original description)
Cerithium ishikariensis Yokoyama, 1932 † (original description)
Circe tokudai Yokoyama, 1932 † accepted as Corbicula tokudai (Yokoyama, 1932) † (original description)
Coralliophila tokudai Yokoyama, 1932 † (original description)
Corbula pumpellyi Yokoyama, 1932 † (original description)
Cyclina shirokiana Yokoyama, 1932 † (original description)
Cyrena verecunda Yokoyama, 1932 † accepted as Astarte verecunda (Yokoyama, 1932) † (original description)
Margaritana perdahurica Yokoyama, 1932 † accepted as Margaritifera perdahurica (Yokoyama, 1932) † (original description)
Martesia pulchella Yokoyama, 1932 accepted as Martesia striata (Linnaeus, 1758) (original description)
Nodularia pisciformis Yokoyama, 1932 † accepted as Lanceolaria pisciformis (Yokoyama, 1932) † (original description)
Nodularia subjapanensis Yokoyama, 1932 † accepted as Anodonta subjapanensis (Yokoyama, 1932) † (original description)
Perissolax lymani Yokoyama, 1932 † (original description)
Thiara fiscina Yokoyama, 1932 † accepted as Semisulcospira fiscina (Yokoyama, 1932) † (original description)
Venus okadana Yokoyama, 1932 † accepted as Pitar okadana (Yokoyama, 1932) † (original description)
Viviparus uryuensis Yokoyama, 1932 † accepted as Bellamya uryuensis (Yokoyama, 1932) † (original description)
Hokkaido for Circe tokudai Yokoyama, 1932 †
Hokkaido for Cyrena verecunda Yokoyama, 1932 †
Hokkaido for Margaritana perdahurica Yokoyama, 1932 †
Hokkaido for Nodularia pisciformis Yokoyama, 1932 †
Hokkaido for Nodularia subjapanensis Yokoyama, 1932 †
Hokkaido for Thiara fiscina Yokoyama, 1932 †
Hokkaido for Viviparus uryuensis Yokoyama, 1932 †
Honshu for Marginella perovulum Yokoyama, 1922 †
Japan for Calliostoma subunicum Yokoyama, 1932 †
Japan for Cerithium ishikariensis Yokoyama, 1932 †
Japan for Circe tokudai Yokoyama, 1932 †
Japan for Coralliophila tokudai Yokoyama, 1932 †
Japan for Corbula pumpellyi Yokoyama, 1932 †
Japan for Cyclina shirokiana Yokoyama, 1932 †
Japan for Martesia pulchella Yokoyama, 1932
Japan for Perissolax lymani Yokoyama, 1932 †
Japan for Venus okadana Yokoyama, 1932 †
From the Lower Morokoshi Beds, probably Eocene or Oligocene in age (absolute age uncertain). [details]
From the Lower Morokoshi Beds, probably Eocene or Oligocene in age (absolute age uncertain). [details]
"Lower Morokoshi Beds: The Shimodazawa, a branch of the Shisengawa; the Morokoshizawa, branch of the same river" ... [details]
Thirty-five localities in the Okada, Numata and Tachibets beds (Uryu Group) of Uryu, Ishikari (Hokkaido, Japan) [details]
"Lower Morokoshi Beds: In the Shimodazawa as well as in the Urashizawa, both tributaries of Shisengawa" (Hokkaido, ... [details]
"Upper Tachibets Beds: The Rakkwanzawa, a branch of the Shisengawa; the Tomisawa and Hozawa, both branches of the ... [details]
"Upper Tachibets Beds: The Sasakizawa; the Nasuzawa, a branch of the Urashimagawa. Lower Tachibets Beds: The ... [details]
"Upper Tachibets beds: In the Sasakigawa. Lower Tachibets beds: In the Kenbokuzawa, a tributary of the Mappugawa" ... [details]
"Lower Okada Beds: the Okadagawa. Upper Numata Beds: The Yorikizawa, a branch of the Urashimagawa. Lower Numata ... [details]
"Upper Tachibets Beds: The Akaganezawa, a branch of the Okadagawa; the Tomisawa, a branch of the Nasuzawa which is ... [details]