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Mesosauria (disused)
Taxonomy
Mesosauria was named by Seeley (1892).
It was reranked as the order Mesosauri by Gadow (1898) and Jaekel (1910); it was corrected as Mesosauri by Jaekel (1911); it was reranked as the order Mesosauria by Huene (1954) and Karl et al. (2007).
It was assigned to Plesiosauria by Gadow (1898); to Rhynchocephalia by Osborn (1903); to Enaliosauri by Jaekel (1910); to Gephyrostegi by Jaekel (1911); to Ichthyopterygia by Haughton and Brink (1954); to Theromorphoidea by Huene (1954); to Cotylosauria by Carroll (1969); to Anapsida by Carroll (1988); to Amniota by Gauthier et al. (1989); and to Proganosauromorpha by Karl et al. (2007).
It was reranked as the order Mesosauri by Gadow (1898) and Jaekel (1910); it was corrected as Mesosauri by Jaekel (1911); it was reranked as the order Mesosauria by Huene (1954) and Karl et al. (2007).
It was assigned to Plesiosauria by Gadow (1898); to Rhynchocephalia by Osborn (1903); to Enaliosauri by Jaekel (1910); to Gephyrostegi by Jaekel (1911); to Ichthyopterygia by Haughton and Brink (1954); to Theromorphoidea by Huene (1954); to Cotylosauria by Carroll (1969); to Anapsida by Carroll (1988); to Amniota by Gauthier et al. (1989); and to Proganosauromorpha by Karl et al. (2007).
Subtaxa
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Proganosauria Baur p. 103 |
| 1890 | Proganosauria Zittel p. 592 |
| 1892 | Mesosauria Seeley p. 604 |
| 1892 | Proganosauria Seeley p. 604 |
| 1898 | Mesosauri Gadow p. 23 |
| 1903 | Mesosauria Osborn p. 276 |
| 1903 | Proganosauria Osborn p. 276 |
| 1903 | Proganosauria Stefano p. 54 |
| 1904 | Proganosauria Osborn p. 109 |
| 1910 | Mesosauri Jaekel p. 334 |
| 1911 | Mesosauri Jaekel p. 139 |
| 1937 | Proganosauria Roxo p. 43 |
| 1946 | Proganosauria Kuhn p. 58 |
| 1954 | Mesosauria Haughton and Brink p. 3 |
| 1954 | Mesosauria Huene p. 26 |
| 1969 | Mesosauria Carroll p. 167 |
| 1988 | Mesosauria Carroll |
| 1989 | Mesosauria Gauthier et al. p. 340 |
| 2007 | Mesosauria Karl et al. p. 67 |
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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.
Subor. †Mesosauria Seeley 1892
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Invalid names: Neusticosauria Seeley 1892 [empty], Proganosauria Baur 1887 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. F. Osborn 1903 (Proganosauria) | Aquatic Diaptosauria. Greatly elongated face. Slender prehensile teeth. Vertebrae expanded superiorly (i.e.,neurocentra), perforated below by notochord, amphicoelous; hypocentra generally wanting. Caudals with 'splitting point.' Ribs slender, proximally attached to grooves in pleurocentra, expanded distally. Pectoral girdle plate-like,without sutural division of procoracoid and coracoid. Pelvic girdle plate-like, with broad pubes perforated by obturator foramen, and more elongate ischia. Five free distal tarsalia. |
Measurements
No measurements are available
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| Source: c = class, subp = subphylum, uc = unranked clade | |||||
| References: Hendy et al. 2009, Carroll 1988 | |||||
Collections
No collection or age range data are available