Iwaizaki Formation
37 distinct taxa, from 38 fossil occurrences the Paleobiology Database records under this name, spanning 267–254 Mya.
Recorded under country code JP
37 taxa · 38 fossils · 267–254 MyaMembers recorded: G, H.
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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
- Nipponomaria yokoyamai
- Acanthophillipsia densigranulata
- Amphissites centronotus
- Aurikirkbya formula
- Aurikirkbya subkellettae
- Bairdia eucurvia
- Bairdia nagaiwensis
- Bairdia oklahomaensis
- Bairdia trianguliformis
- Bairdiacypris deloi
- Cavellina nipponica
- Ceratobairdia ambigua
- Cheiropyge koizumii
- Ectodemites globosa
- Hayasakapora erectoradiata
- Hollinella elliptica
- Kirkbya atolla
- Kirkbya centrotumida
- Kirkbya magniforma
- Kirkbya multicresta
- Kirkbya subnipponica
- Kirkbya subquadriforma
- Microcheilinella venusta
- Ostracoda
- Paladin iwaizakiensis
- Parawentzelella (Miyagiella) miyagiensis
- Parawentzelella (Miyagiella) motoyoshiensis
- Polytylites kitanipponica
- Porcellia
- Pseudophillipsia (Nodiphillipsia) binodosa
- Pseudophillipsia (Nodiphillipsia) simplex
- Pseudophillipsia (Pseudophillipsia) spatulifera
- Roundyella neopapillosa
- Spinobairdia
- Waagenophyllum (Waagenophyllum) indicum
- Waagenophyllum (Waagenophyllum) virgalense
- Yakunopora mabutii
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.