| Westlothiana Temporal range: Viséan,
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|---|---|
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| Type specimen of Westlothiana lizziae | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Superclass: | Tetrapoda |
| Clade: | Reptiliomorpha (?) |
| Genus: | †Westlothiana Smithson and Rolfe, 1990 |
| Type species | |
| Westlothiana lizziae Smithson and Rolfe, 1990
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Westlothiana ("animal from West Lothian") is a genus of reptile-like tetrapod that lived about 338 million years ago during the latest part of the Viséan age of the Carboniferous. The genus is known from a single species, Westlothiana lizziae. It is the oldest known uncontroversial tetrapod, closely related to but not an amniote.[1]
- ^ Marjanović, D. (2021). "The Making of Calibration Sausage Exemplified by Recalibrating the Transcriptomic Timetree of Jawed Vertebrates". Frontiers in Genetics. 12. 521693. doi:10.3389/fgene.2021.521693. PMC 8149952. PMID 34054911.