Tetrapodosaurus fossil map
Where fossils of Tetrapodosaurus have been found, shown on the Earth as it looked about 100 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 100 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 | Iguanodonts & duck-bills |
|---|---|
| Lived | 170.9–66 million years ago (Bajocian to Maastrichtian) |
| Periods | Jurassic, Cretaceous |
| Family | Tetrapodosauridae |
| Named by | Sternberg 1932 |
| Fossil records | 52 occurrences at 44 locations (PBDB) |
| Found in | Canada, United States, Mexico |
| Rock formations | Gates, Dunvegan, Naturita, Gething, txn:85220, Patuxent |
About Tetrapodosaurus
Tetrapodosaurus is an ichnogenus of dinosaur footprint found in Canada and the United States (Patuxent Formation), likely representing the tracks of a non-ankylosaurid ankylosaur.
Tetrapodosaurus was first identified by Charles Mortram Sternberg in 1932 along the Peace River, and it is characterized by tetradactyl (four-toed) pes prints which were created by non-ankylosaurid ankylosaurs such as 'nodosaurids' and similar taxa.
Text in “About” is quoted from the Wikipedia article Tetrapodosaurus (revision 1330841837), 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: Q7706679.
