Name: Macroleter.
Phonetic: Mak-roe-lee-ter.
Named By: G.‭ ‬I.‭ ‬Tverdokhlebova & M.‭ ‬F.‭ ‬Ivakhnenko‭ ‬-‭ ‬1984.
Synonyms: Seymouria agilis,‭ ‬Tokosaurus‭.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Parareptilia,‭ ‬Procolophonomorpha,‭ ‬Procolophonia,‭ ‬Nycteroleteridae.
Species: M.‭ ‬poezicus‭ (‬type‭)‬,‭ ‬M.‭ ‬agilis.
Diet: Carnivore/Insectivore‭?
Size: About‭ ‬75‭ ‬centimetres long.
Known locations: USA,‭ ‬Oklahoma‭ ‬-‭ ‬Chickasha Formation.‭ ‬Russia‭ ‬-‭ ‬Krasnoshchel‭' ‬Formation.
Time period: Wordian of the Permian.
Fossil representation: Based upon an almost complete and articulated skeleton and skull.

       For its type Macroleter were fairly large predators that were procolopophonid parareptiles.‭ ‬One former species of Seymouria,‭ ‬S.‭ ‬agilis has been re-assigned as a second species of Macroleter.‭ ‬This makes the type species of Macroleter,‭ ‬M.‭ ‬poezicus known from Russia,‭ ‬and the second species,‭ ‬M.‭ ‬agilis known from the USA.‭ ‬There is also speculation that the genus Tokosaurus may actually be a synonym to Macroleter.

Further reading
-‭ ‬Nikteroletery iz Permskikh Otlozheniy Vostochnoy Evropy‭ [‬Nycteroleters from the Permian of Eastern Europe‭]‬.‭ ‬-‭ ‬Paleontologicheskii Zhurnal‭ ‬1984‭(‬3‭)‬:98-111.‭ ‬-‭ ‬G.‭ ‬I.‭ ‬Tverdokhlebova and M.‭ ‬F.‭ ‬Ivakhnenko‭ ‬-‭ ‬1984.
-‭ ‬The reptile Macroleter:‭ ‬First vertebrate evidence for correlation of Upper Permian continental strata of North America and Russia‭‬. -‭ ‬Geological Society of America Bulletin‭ ‬113‭ (‬9‭)‬:‭ ‬1229‭–‬1233.‭ ‬-‭ ‬Michel Laurin‭ & ‬Robert R.‭ ‬Reisz‭ ‬-‭ ‬2001.
-‭ ‬Anatomy of Emeroleter levis and the phylogeny of the nycteroleter parareptiles.‭ ‬-‭ ‬Journal of Vertebrate Paleontology‭ ‬32‭ (‬1‭)‬:‭ ‬45‭–‬67.‭ ‬-‭ ‬Linda A.‭ ‬Tsuji,‭ ‬Johannes Müller‭ & ‬Robert R.‭ ‬Reisz‭ ‬-‭ ‬2012.


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