Diceratosaurus fossil map
Where fossils of Diceratosaurus 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 | Early tetrapods & amphibians |
|---|---|
| Lived | 312.8–306 million years ago (Moscovian to Kasimovian) |
| Periods | Carboniferous |
| Family | Diplocaulidae |
| Named by | Jaekel 1903 |
| Fossil records | 2 occurrences at 2 locations (PBDB) |
| Found in | United States |
| Rock formations | txn:142457 |
About Diceratosaurus
Diceratosaurus is an extinct genus of nectridean tetrapodomorphs within the family Diplocaulidae. Fossils of Diceratosaurus were first described by Edward Drinker Cope in 1874. The species D. brevirostris is well known from Jefferson County, Ohio, with approximately 50 specimens having been collected from the Ohio Diamond Coal Mine. The mine was situated in the village of Linton, which became obscure soon after operations were completed and the mine closed in 1921. Diceratosaurus brevirostris dates back to the Moscovian age, 307 million years ago.
Text in “About” is quoted from the Wikipedia article Diceratosaurus (revision 1354843000), 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: Q2884381.
