Mikasa Formation
28 distinct taxa, from 32 fossil occurrences the Paleobiology Database records under this name, spanning 101–90 Mya.
Hokkaido · JP
28 taxa · 32 fossils · 101–90 MyaFiled under the Yezo Group. Members recorded: IIb.
Loading coastlines…
6 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.
When
What has been found
- Anglonautilus japonicus
- Polyptychoceras
- Yezoites puerculus
- Anthonya
- Avellana
- Conoteuthis hayakawai
- Cymbophora
- Damesites laticarinatus
- Didymoceras
- Drepanochilus
- Entolium
- Gaudryceras (Gaudryceras) denseplicatum
- Glycymerita (Glycymerita)
- Goniomya (Goniomya)
- Goshoraia
- Inoceramus (Actinoceramus) concentricus
- Longibelus matsumotoi
- Margarites
- Nostoceratidae
- Pteranodontidae
- Pterotrigonia
- Pterotrigonia (Acanthotrigonia)
- Pterotrigonia (Pterotrigonia)
- Scaphites obliquus
- Takahashiceras eureka
- Telamonocarcinus binodosus
- Thetis japonica
- Tillocheles kaoriae
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.