Ryujin Formation
20 distinct taxa, from 36 fossil occurrences the Paleobiology Database records under this name, spanning 84–72 Mya.
Wakayama · JP
20 taxa · 36 fossils · 84–72 MyaMembers recorded: Tuff-Shale, Disrupted Sandstone and Shale, Greenstone-Shale.
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2 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
- Archaeodictyomitra
- Amphipyndax
- Amphipyndax stocki
- Lithocampe
- Dictyomitra
- Dictyomitra formosa
- Dictyomitra multicostata
- Patulibracchium
- Pseudoaulophacus lenticulatus
- Alievium
- Amphipyndax mediocris
- Archaeospongoprunum
- Archaeospongoprunum salumi
- Dictyomitra koslovae
- Pseudoaulophacus
- Pseudoaulophacus floresensis
- Pseudoaulophacus praefloresensis
- Pseudodictyomitra
- Theocampe salillum
- Xitus
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.