Limnostygis is a dubious genus of tetrapod from the Pennsylvanian of Nova Scotia. The fragmentary holotype specimen was found in a fossilized tree stump in the Morien Group.[1] Formerly thought to be a limnoscelid, this specimen has since been considered to be a combination of possible ophiacodont and captorhinid material.[2]
^Wideman, Natalia Kazimiera; Sumida, Stuart (2004). "Taxonomic status of the tetrapod Limnostygis relictus and its bearing on the temporal distribution of basal amniotes". Journal of Vertebrate Paleontology. 24 (3, Supplement): 129A.
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Early tetrapods
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
Clade: Tetrapodomorpha
Clade: Stegocephali
Tetrapodomorpha
see Tetrapodomorpha
Tetrapoda
see below↓
Tetrapoda
Batrachomorpha
Temnospondyli
see Temnospondyli
likely includes Lissamphibia
Reptiliomorpha
Embolomeri sensu lato?
Eoherpeton
Proterogyrinidae
Papposaurus
Proterogyrinus
Embolomeri sensu stricto
Anthracosaurus
Eobaphetes
Seroherpeton
Archeriidae
Archeria
"Cricotus"
Spondylerpeton
"Eogyrinidae"
Aversor
Calligenethlon
Carbonoherpeton
Diplovertebron
Leptophractus
Neopteroplax
Palaeoherpeton
Pholiderpeton
Pteroplax
Chroniosuchia?
Laosuchus
"Bystrowianidae"
Axitectum
Bystrowiana
Bystrowiella
Dromotectum
Hassiacoscutum
Jiyuanitectum
Synesuchus
Yumenerpeton
Chroniosuchidae
Chroniosaurus
Chroniosuchus
Ingentidens
Jarilinus
Madygenerpeton
Phratochronis
Suchonica
Uralerpeton
Gephyrostegidae?
Bruktererpeton
Eusauropleura
Gephyrostegus
Seymouriamorpha?
Enosuchus?
Karpinskiosaurus
Kotlassia
Microphon
Nyctiboetus
Seymouria
Waggoneria
Discosauriscidae
Ariekanerpeton
Discosauriscus
Makowskia
Spinarerpeton
Urumquia
Utegenia
Leptorophidae
Leptoropha
Biarmica
"Lepospondyli"?
see Lepospondyli
possibly includes Lissamphibia
Diadectomorpha
Limnoscelis?
Tseajaia
Diadectidae
Alveusdectes
Ambedus
Desmatodon
Diadectes
Diasparactus
Oradectes
Orobates
Phanerosaurus
Stephanospondylus
Amniota
Synapsida
see Synapsida
includes Mammalia
Sauropsida (Reptiliasensu lato)
see Sauropsida
includes Sauria (crown-Reptilia)
Others
Caerorhachis
Casineria
Eldeceeon
Romeriscus
Silvanerpeton
Solenodonsaurus
Termonerpeton
Westlothiana
Key
Major clades underlined
See also
"Labyrinthodontia"
Anthracosauria
Batrachosauria
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This article is licensed under CC BY-SA 3.0. Original source: https://en.wikipedia.org/wiki/Limnostygis Status: article is cached