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Sillimanius
Taxonomy
Sillimanius was named by Hitchcock (1845). It is considered to be a form taxon.
It was assigned to Tetradactylidae by Hitchcock (1845); to Dinosauria by Lull (1904); to Dinosauria by Kuhn (1958); and to Reptilia by Lull (1917) and Kuhn (1963).
It was assigned to Tetradactylidae by Hitchcock (1845); to Dinosauria by Lull (1904); to Dinosauria by Kuhn (1958); and to Reptilia by Lull (1917) and Kuhn (1963).
Synonyms
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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. †Sillimanius Hitchcock 1845
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†Sillimanius gracilior Hitchcock 1841
†Sillimanius tetradactylus Hitchcock 1836
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Invalid names: Ornithopus gallinaceus Hitchcock 1845 [synonym]
Invalid names: Ornithopus Hitchcock 1845 [synonym]
Diagnosis
Reference | Diagnosis | |
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E. Hitchcock 1848 (Ornithopus) | Toes four; three pointing forward; the hind toe lying on the inside of the foot and on a prolongation backward of the outer toe. |
Measurements
No measurements are available
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Source: c = class, subp = subphylum, uc = unranked clade | |||||
References: Hendy et al. 2009, Carroll 1988 |
Age range: base of the Hettangian to the top of the Sinemurian or 201.30000 to 190.80000 Ma
Collections (7 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Hettangian - Sinemurian | USA (Massachusetts) | Ornithopus adamsanus (52990) Ornithopus gallinaceus (52985 53028 91398) S. tetradactylus, S. gracilior, Ornithopus gracilior (52996) | |
Hettangian - Sinemurian | USA (Connecticut) | Ornithoidichnites tetradactylus, Ornithopus gallinaceus (53023) Ornithoidichnites tetradactylus, Ornithopus gallinaceus, Ornithoidichnites gracilior (53000) |