Scientists aim to describe a single 'tree of life' that reflects the evolutionary relationships of living things. However, evolutionary relationships are a matter of ongoing discovery, and there are different opinions about how living things should be grouped and named. EOL reflects these differences by supporting several different scientific 'classifications'. Some species have been named more than once. Such duplicates are listed under synonyms. EOL also provides support for common names which may vary across regions as well as languages.

Preferred marks the preferred classification for this taxon.

Recognized By Rank Classification
Paleobiology Database
view in classification
Unranked clade
Wikimedia Commons
  • Therapsida Broom, 1905
IRMNG
view in classification
Order
Smithsonian type specimen data Class
The Field Museum Member's Night EOL Photo Scavenger Hunt 2010 Order
Type data from iDigBio Order
Type data from iDigBio Order
Wikimedia Commons
  • Therapsida Seeley, 1895
Wikimedia Commons Order
BioLib.cz Import
Wikimedia Commons
  • Therapsida Owen, 1859
Wikimedia Commons
  • Therapsida Seeley, 1894
Wikipedia Order
Wikipedia Class
Wikipedia Order
Wikipedia Order
Wikipedia Order
Wikipedia Order

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