🦕 Prehistoric World Map

Eretmosaurus fossil map

Where fossils of Eretmosaurus have been found, shown on the Earth as it looked about 201 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 201 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 →

Eretmosaurus
Image: Ghedoghedo, CC BY-SA 3.0, via Wikimedia Commons
GroupPlesiosaurs & kin
Lived199.5–192.9 million years ago (Sinemurian)
PeriodsJurassic
Named bySeeley 1874
Fossil records1 occurrences at 1 locations (PBDB)
Found inUnited Kingdom
Rock formationstxn:NF

About Eretmosaurus

Eretmosaurus (meaning "oar lizard") is an extinct genus of plesiosaur from the Early and Middle Jurassic of England and Russia. Two species are known: E. rugosus and E. dubius.

Text in “About” is quoted from the Wikipedia article Eretmosaurus (revision 1352617756), 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: Q3731394.

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