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Secodontosaurus
Taxonomy
Secodontosaurus was named by Romer (1936).
It was assigned to Secodontosaurinae by Reisz (1986); and to Sphenacodontidae by Romer (1936), Carroll (1988).
It was assigned to Secodontosaurinae by Reisz (1986); and to Sphenacodontidae by Romer (1936), Carroll (1988).
Synonymy list
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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.
G. †Secodontosaurus Romer 1936
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†Secodontosaurus obtusidens Cope 1880
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Invalid names: Dimetrodon longiramus Case 1907 [synonym], Secodontosaurus willistoni Romer 1936 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 274.40000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Texas) | Dimetrodon longiramus (28238) Dimetrodon obtusidens (28149) Theropleura obtusidens (28142) | |
| Artinskian - Kungurian | USA (Texas) | Dimetrodon obtusidens (28253) | |
| Kungurian | USA (Texas) | S. willistoni (28267) |