🦕 Prehistoric World Map

Ecolsonia fossil map

Where fossils of Ecolsonia have been found, shown on the Earth as it looked about 300 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 300 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 →

Ecolsonia
Image: Schoch, R. R., CC BY-SA 3.0, via Wikimedia Commons
GroupEarly tetrapods & amphibians
Lived298.9–286 million years ago (Asselian to Artinskian)
PeriodsPermian
FamilyTrematopidae
Named byVaughn 1969
Fossil records3 occurrences at 3 locations (PBDB)
Found inUnited States
Rock formationsEl Cobre Canyon, Cutler

About Ecolsonia

Ecolsonia is an extinct genus of trematopid temnospondyl. Its phylogenetic position within Olsoniformes has been historically debated, but it is presently considered to be a trematopid.

Text in “About” is quoted from the Wikipedia article Ecolsonia (revision 1313802609), 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: Q5333307.

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