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Arizonerpeton fossil map

Where fossils of Arizonerpeton have been found, shown on the Earth as it looked about 330 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 330 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 →

GroupEarly tetrapods & amphibians
Lived318.7–314.6 million years ago (Bashkirian to Moscovian)
PeriodsCarboniferous
Named byThayer 1985
Fossil records1 occurrences at 1 locations (PBDB)
Found inUnited States
Rock formationsBlack Prince Limestone

About Arizonerpeton

Arizonerpeton is an extinct genus of nectridean tetrapodomorphs. It contains a single species, Arizonerpeton wellsi. It lived in what is now the Swisshelm Mountains of modern-day Arizona, United States. This locality belongs to the Black Prince Limestone Formation, which is dated to the middle Pennsylvanian sub-period of the Carboniferous period.

Text in “About” is quoted from the Wikipedia article Arizonerpeton (revision 1283164613), 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: Q4791513.

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