Sillosuchus fossil map
Where fossils of Sillosuchus 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 | Crocodile relatives |
|---|---|
| Lived | 237–227.3 million years ago (Carnian) |
| Periods | Triassic |
| Family | Shuvosauridae |
| Named by | Alcober and Parrish 1997 |
| Fossil records | 1 occurrences at 1 locations (PBDB) |
| Found in | Argentina |
| Rock formations | Ischigualasto |
About Sillosuchus
Sillosuchus is a genus of large (femur length = 47 cm (19 in) in the holotype) shuvosaurid poposauroid archosaur that lived in South America during the Late Triassic period. Shuvosaurids were an unusual family of reptiles belonging to the group Poposauroidea; although their closest modern relatives are crocodilians, they were bipedal and lightly armored, with dinosaur-like hip and skull structures. Based on skull remains from members of the family such as Effigia, they were also toothless and likely beaked herbivores.
Text in “About” is quoted from the Wikipedia article Sillosuchus (revision 1340581195), 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: Q599577.
