|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
It was synonymized subjectively with Conodectes by Sushkin (1926).
It was assigned to Pareiasauridae by Broili (1904); to Seymouriamorpha by Olson (1979); to Seymouriidae by Vaughn (1966), Carroll et al. (1972), Carroll (1988), Laurin (1995) and Bulanov (2003); and to Seymouridae by Case (1911) and Martens et al. (2005).
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Collections (15 total)
|Time interval||Ma||Country or state||Original ID and collection number|
|Wolfcamp||USA (Colorado)||S. sp. (85479)|
|Artinskian||Germany (Thuringia)||S. sanjuanensis (80112)|
|Artinskian||USA (Oklahoma)||S. baylorensis (79402)|
|Leonard||USA (Oklahoma)||S. sp. (67862)|
|Kungurian||USA (Texas)||Conodectes favosus (22670) S. baylorensis (28264 67735) S. baylorensis, Desmospondylus anomalus (28256) S. grandis (178738) S. sp. (22715 28267 28272) S. sp., Conodectes favosus (28266)|
|Kungurian||USA (Oklahoma)||S. grandis (181086 181087)|