Ianthasaurus fossil map
Where fossils of Ianthasaurus have been found, shown on the Earth as it looked about 300 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 300 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 | Pre-mammals (synapsids) |
|---|---|
| Lived | 306–303.7 million years ago (Kasimovian) |
| Periods | Carboniferous |
| Family | Edaphosauridae |
| Named by | Reisz and Berman 1986 |
| Fossil records | 2 occurrences at 2 locations (PBDB) |
| Found in | United States |
| Rock formations | Stanton, Sangre de Cristo |
About Ianthasaurus
Ianthasaurus is an extinct genus of small edaphosaurids from the Late Carboniferous.
Text in “About” is quoted from the Wikipedia article Ianthasaurus (revision 1368881656), 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: Q28577468.
