Xibalbaonyx fossil map
Where fossils of Xibalbaonyx have been found, shown on the Earth as it looked about 0 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 0 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 mammals |
|---|---|
| Lived | 0.129 million years ago to the present (Late Pleistocene to Holocene) |
| Periods | Quaternary |
| Family | Megalonychidae |
| Named by | Stinnesbeck et al. 2017 |
| Fossil records | 6 occurrences at 3 locations (PBDB) |
| Found in | Mexico |
| Rock formations | txn:43596 |
About Xibalbaonyx
Xibalbaonyx is an extinct genus of megalonychid ground sloth known from the Late Pleistocene of Mexico. Three species are recognized: X. oviceps and X. exiniferis from the Yucatán Peninsula and X. microcaninus from Jalisco. The genus name derives from Xibalba, the underworld in Maya mythology.
Text in “About” is quoted from the Wikipedia article Xibalbaonyx (revision 1375570239), 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: Q55074742.
