Eryopoid
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Eryopoidea are a taxon of late Carboniferous and Permian temnospondyli amphibians, known from North America and Europe. Carroll includes no fewer than ten families, but Yates and Warren replace this with a cladistic approach and include three families, the Eryopidae,
Parioxyidae ''Parioxys'' is an extinct genus of temnospondyl amphibian from the Early Permian of Texas. History of study The type species, ''Parioxys ferricolus'', was named in 1878 by American paleontologist Edward Drinker Cope based on two badly preser ...
and
Zatrachydidae Zatracheidae (sometimes mistakenly spelled Zatrachydidae or Zatrachysdidae) is a family of Late Carboniferous and Early Permian temnospondyl amphibians known from North America and Europe. Zatracheidids are distinguished by lateral (sideways) bo ...
. They define the Eryopoidea as all Euskelia in which the choana are relatively rounded and the iliac blade vertical. A similar definition but without the Euskelia is provided by Laurin and Steyer.


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Palaeos
– Mikko's Phylogeny Archive {{Taxonbar, from=Q3816041 Carboniferous temnospondyls Permian temnospondyls Pennsylvanian first appearances Permian extinctions Taxa named by Edward Drinker Cope