Leidyosuchus fossil map
Where fossils of Leidyosuchus have been found, shown on the Earth as it looked about 75 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 75 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 | Crocodile relatives |
|---|---|
| Lived | 85.7–63.4 million years ago (Santonian to Danian) |
| Periods | Cretaceous, Paleogene |
| Named by | Lambe 1907 |
| Fossil records | 47 occurrences at 30 locations (PBDB) |
| Found in | Canada, United States, Mexico |
| Rock formations | Dinosaur Park, Oldman, txn:NF, Lance, Nacimiento, Marshalltown |
About Leidyosuchus
Leidyosuchus (meaning "Leidy's crocodile") is an extinct genus of eusuchian, either an alligatoroid crocodilian or a stem-group crocodilian, from the Late Cretaceous of Alberta. It was named in 1907 by Lawrence Lambe, and the type species is L. canadensis. It is known from a number of specimens from the middle Campanian age Dinosaur Park Formation. It was a medium-sized alligatoroid, with a maximum skull length greater than 40 centimeters (16 in).
Text in “About” is quoted from the Wikipedia article Leidyosuchus (revision 1374465914), 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: Q2366128.
