 Yates and Warren also named Dvinosauria , a clade of small aquatic temnospondyls from the Carboniferous , Permian , and Triassic . They placed Dvinosauria within Limnarchia , but more recent studies disagree on their position . For example , a 2007 study places them even more basal than euskelians , while a 2008 study keeps them as basal limnarchians . 
 Yates and Warren also named Dvinosauria , a clade of small aquatic temnospondyls from the Carboniferous , Permian , and Triassic . They placed Dvinosauria within Limnarchia , but more recent studies disagree on their position . For example , a 2007 study <a href='uninflect' title='1'><mark>places</mark></a> them even more basal than euskelians , while a 2008 study <a href='uninflect' title='2'><mark>keeps</mark></a> them as basal limnarchians . 
Yates and Warren also named Dvinosauria , a clade of small aquatic temnospondyls from the Carboniferous , Permian , and Triassic . They placed Dvinosauria within Limnarchia , but more recent studies disagree on their position . fir example , a 2007 study place them even more basal than euskelians , while a 2008 study keep em as basal limnarchians .