Guizhouichthyosaurus fossil map
Where fossils of Guizhouichthyosaurus have been found, shown on the Earth as it looked about 230 million years ago and on today’s map.
Dots are fossil collections recorded in the Paleobiology Database. The “then” view moves today’s fossil sites back to their positions 230 million years ago (the time slice nearest the median age of the fossils) using the Merdith et al. (2021) plate model; positions are approximate. Open on the timeline map →
| Group | Ichthyosaurs |
|---|---|
| Lived | 241.464–227.3 million years ago (Ladinian to Carnian) |
| Periods | Triassic |
| Family | Shastasauridae |
| Fossil records | 8 occurrences at 5 locations (PBDB) |
| Found in | China |
| Rock formations | Xiaowa, Falang, Wayao |
About Guizhouichthyosaurus
Guizhouichthyosaurus is an extinct genus of ichthyosaur which is known primarily from the Xiaowa Formation of the lower Carnian stage of the Late Triassic in southwest China. The type species of this genus is Guizhouichthyosaurus tangae, of which multiple skeletons are known. It has been reassigned as a species of the genus Shastasaurus in the past, though it has since been considered distinct. The ichthyosaurs Cymbospondylus asiaticus, named in 2002, and Panjiangsaurus epicharis, named in 2003, are junior synonyms of G. tangae. The genus is also known from the Ladinian-aged Middle Triassic Zhuganpo Formation; additionally, the species "Callawayia" wollongangense may belong to Guizhouichthyosaurus.
Text in “About” is quoted from the Wikipedia article Guizhouichthyosaurus (revision 1367153963), licensed under CC BY-SA 4.0; introduction excerpted verbatim, formatting removed. Ages, family, authority and fossil records: Paleobiology Database, accessed 23 October 2026. Ages are those of the rock layers the fossils were found in. Wikidata: Q3281334.
