Urakawa Formation
48 distinct taxa, from 348 fossil occurrences the Paleobiology Database records under this name, spanning 90–72 Mya.
Hokkaido · JP
48 taxa · 348 fossils · 90–72 MyaFiled under the Upper Yezo Group. Members recorded: U1, U0.
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1 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
- Cornutella californica
- Amphipyndax stocki
- Novodiacanthocapsa manifesta
- Dictyomitra formosa
- Lithatractus pusillus
- Pseudoaulophacus floresensis
- Xitus asymbatos
- Eucyrtidium matsumotoi
- Squinabolella putahensis
- Theocampe
- Mita
- Spongotripus
- Stichomitra
- Amphipyndax
- Orbiculiforma
- Pseudoaulophacus lenticulatus
- Pyramispongia
- Theocampe apicata
- Theocampe yaoi
- Bathropyramis campbelli
- Orbiculiforma quadrata
- Solenotryma dacryodes
- Rhopalosyringium magnificum
- Archaeospongoprunum bipartitum
- Artostrobium urna
- Cornutella cretacea
- Crucella espartoensis
- Archaeospongoprunum
- Artostrobium tina
- Schadelfusslerus echtus
- Solenotryma japonica
- Stichomitra foraminosa
- Theocampe salillum
- Praeconocaryomma californiaensis
- Praeconocaryomma universa
- Protoxiphotractus
- Spongostaurus hokkaidoensis
- Stichocapsa
- Theocampe ascalia
- Archaeospongoprunum cortinaensis
The 40 most often recorded, of 48.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.