Xiaowa Formation
42 distinct taxa, from 53 fossil occurrences the Paleobiology Database records under this name, spanning 237–227 Mya.
Guizhou · CN
42 taxa · 53 fossils · 237–227 MyaMembers recorded: Lower, Middle.
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4 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
- Guizhouichthyosaurus tangae
- Protrachyceras
- Qianichthyosaurus zhoui
- Anshunsaurus huangguoshuensis
- Sibyllites
- Trachyceras
- Xinpusaurus suni
- Buchites aldrovandii
- Clionitites
- Concavispina biseridens
- Crania
- Cyamodus orientalis
- Daonella
- Gervilleia (Angustella)
- Guanlingoceras guanlingensis
- Guanlingsaurus liangae
- Guizhouichthyosaurus wolonggangense
- Halobia
- Halobia subcomata
- Hauerites
- Hayashiella nodosa
- Holothuroidea
- Krumbeckiella
- Miodentosaurus brevis
- Neoprotrachyceras
- Odontochelys semitestacea
- Osteocrinus sinensis
- Osteocrinus spinosus
- Osteocrinus virgatus
- Paratrachyceras hofmanni
- Protrachyceras costulatum
- Protrachyceras deprati
- Protrachyceras ladinum
- Psephochelys polyosteoderma
- Quadralella polygnathiformis
- Sinocyamodus xinpuensis
- Sirenites senticosus
- Trachyceras aon
- Trachyceras multituberculatum
- Traumatocrinus
The 40 most often recorded, of 42.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.