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Thecodontia
Taxonomy
Thecodontia was named by Owen (1859).
It was synonymized subjectively with Megalosauria by Osborn (1904); it was synonymized subjectively with Pseudosuchia by Haubold (1969); it was reranked as the unranked clade Thecodontia by Gardiner (1982).
It was assigned to Sauria by Owen (1859); to Tocosauria by Haeckel (1866); to Archosauromorpha by Huene (1954); to Archosauria by Kuhn (1966); to Archosauria by Olson (1966); to Reptilia by Owen (1860), Owen (1861), Kuhn (1946), Ellenberger (1972); to Archosauria by Haughton and Brink (1954), Kuhn (1964), Charig (1967), Haubold (1971), Bakker and Galton (1974), Haubold (1974), Thulborn (1975); to Euamniota by Gardiner (1982); and to Archosauria by Carroll (1988).
It was synonymized subjectively with Megalosauria by Osborn (1904); it was synonymized subjectively with Pseudosuchia by Haubold (1969); it was reranked as the unranked clade Thecodontia by Gardiner (1982).
It was assigned to Sauria by Owen (1859); to Tocosauria by Haeckel (1866); to Archosauromorpha by Huene (1954); to Archosauria by Kuhn (1966); to Archosauria by Olson (1966); to Reptilia by Owen (1860), Owen (1861), Kuhn (1946), Ellenberger (1972); to Archosauria by Haughton and Brink (1954), Kuhn (1964), Charig (1967), Haubold (1971), Bakker and Galton (1974), Haubold (1974), Thulborn (1975); to Euamniota by Gardiner (1982); and to Archosauria by Carroll (1988).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1859 | Thecodontia Owen p. 140 |
| 1860 | Thecodontia Owen p. 248 |
| 1861 | Thecodontia Owen p. 275 |
| 1866 | Thecodonta Haeckel p. CXXXIV |
| 1946 | Thecodontia Kuhn p. 63 |
| 1947 | Ocoyuntaia Rusconi |
| 1947 | Ocoyuntaia arquata Rusconi pp. 1-2 fig. 1 |
| 1954 | Thecodontia Haughton and Brink p. 4 |
| 1954 | Thecodontia Huene p. 42 |
| 1958 | Seemannia palaeotriadica Huene |
| 1958 | Seemannia Huene p. 112 fig. 1 |
| 1964 | Thecodontia Kuhn p. 312 |
| 1964 | Shansisuchus heiyuekouensis Young |
| 1966 | Thecodontia Kuhn p. 70 |
| 1966 | Thecodontia Olson p. 301 |
| 1967 | Thecodontia Charig p. 708 |
| 1967 | Crenelosaurus Ortlam |
| 1967 | Crenelosaurus nigrosilvanus Ortlam |
| 1971 | Thecodontia Haubold p. 52 |
| 1971 | Crenelosaurus Kuhn p. 12 |
| 1971 | Crenelosaurus nigrosilvanus Kuhn p. 12 |
| 1971 | Seemannia Kuhn p. 12 |
| 1971 | Seemannia palaeotriadica Kuhn p. 12 |
| 1972 | Thecodontia Ellenberger p. 152 |
| 1974 | Thecodontia Bakker and Galton p. 171 |
| 1974 | Thecodontia Haubold p. 39 |
| 1975 | Thecodontia Thulborn p. 267 |
| 1982 | Thecodontia Gardiner p. 228 |
| 1988 | Thecodontia Carroll |
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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.
Or. †Thecodontia Owen 1859
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G. †Clarencea Brink 1959
G. †Dasygnathoides Kuhn 1961
Invalid names: Crenelosaurus Ortlam 1967 [nomen dubium], Crenelosaurus nigrosilvanus Ortlam 1967 [nomen dubium], Doswelliina Weems 1980 [empty], Haemothermia Owen 1866 [empty], Ocoyuntaia Rusconi 1947 [nomen dubium], Ocoyuntaia arquata Rusconi 1947 [nomen dubium], Platyognathidae Simmons 1965 [empty], Seemannia Huene 1958 [nomen dubium], Seemannia palaeotriadica Huene 1958 [nomen dubium], Shansisuchus heiyuekouensis Young 1964 [nomen dubium]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. Owen 1860 | Vertebral bodies biconcave: ribs of the trunk long and bent, the anterior ones with a bifurcate head : sacrum of three vertebrae : limbs ambulatory, femur with a third trochanter. Teeth with the crown mine or less compressed, pointed, with trenchant and finely serrate margins : implanted in distinct sockets. | |
| R. Owen 1861 | Vertebral bodies biconcave: ribs of the trunk long and bent, the anterior ones with a bifurcate head: sacrum of three vertebrae: limbs ambulatory, femur with a third trochanter. Teeth with the crown more or less compressed, pointed, with trenchant and finely serrate margins: implanted in distinct sockets. |
Measurements
No measurements are available
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| Source: o = order, subc = subclass, c = class, subp = subphylum | |||||
| References: Hendy et al. 2009, Benton 1983, Carroll 1988 | |||||
Age range
Maximum range based only on fossils: base of the Spathian to the top of the Sinemurian or 248.10000 to 192.90000 Ma
Minimum age of oldest fossil (stem group age): 246.7 Ma
Minimum age of oldest fossil (stem group age): 246.7 Ma
Collections (25 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Triassic | South Africa (Free State) | Tikoepentapodiscus fabri (84059) | |
| Induan - Olenekian | Russian Federation (Orenburg) | Proterosuchia indet. (37040) | |
| Spathian | Russian Federation (Orenburg) | Thecodontia indet. (195812) | |
| Spathian | Germany (Niedersachsen) | Pseudosuchia indet. (117152) | |
| Aegean - Bithynian | Germany (Baden-Württeberg) | Seemannia palaeotriadica (134506) | |
| Aegean - Bithynian | Germany (Baden-Württemberg) | Crenelosaurus nigrosilvanus (134302) | |
| Anisian | Russian Federation (Orenburg) | Thecodontosaurus sp. (28850) | |
| Anisian | China (Shanxi) | Shansisuchus heiyuekouensis (101059 101061 101159 101163 101166 101168 101169 101170) | |
| Anisian | Russian Federation (Bashkortostan) | Jushatyria vjushkovi (97415) | |
| Middle Triassic | Argentina (Mendoza) | Ocuyuntaia arquata (117454) | |
| Carnian | United Kingdom (England) | Thecodontia indet. (13178 13179 13180 13181) | |
| Carnian - Norian | United Kingdom (Scotland) | Thecodontia indet. (57948) | |
| Norian | USA (Texas) | Thecodontia indet. (84269) | |
| Hettangian - Sinemurian | South Africa (Free State) | Thecodontia indet. (75196) | |
| Early/Lower Jurassic | China (Guizhou) | Thecodontia indet. (49780) |