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Protorothyrididae
Taxonomy
Protorothyrididae was named by Price (1937). Its type is Protorothyris. It was considered paraphyletic by Boy and Martens (1991) and Müller and Reisz (2006).
It was synonymized subjectively with Romeriidae by Kuhn (1966) and Carroll and Baird (1972).
It was assigned to Cotylosauria by Price (1937); to Captorhinomorpha by Kuhn (1946); to Captorhinomorpha by Carroll (1988) and Boy and Martens (1991); to Captorhinomorpha by Martens et al. (2005); and to Eureptilia by Müller and Reisz (2006).
It was synonymized subjectively with Romeriidae by Kuhn (1966) and Carroll and Baird (1972).
It was assigned to Cotylosauria by Price (1937); to Captorhinomorpha by Kuhn (1946); to Captorhinomorpha by Carroll (1988) and Boy and Martens (1991); to Captorhinomorpha by Martens et al. (2005); and to Eureptilia by Müller and Reisz (2006).
Subtaxa
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1937 | Romeriidae Price p. 97 |
| 1937 | Protorothyrididae Price p. 98 |
| 1946 | Protothyrididae Kuhn p. 55 |
| 1946 | Romeriidae Kuhn p. 55 |
| 1966 | Romeriidae Kuhn p. 14 |
| 1969 | Romeriidae Carroll p. 152 |
| 1972 | Romeriidae Carroll and Baird p. 322 |
| 1973 | Romeriidae Clark and Carroll p. 357 |
| 1988 | Protorothyrididae Carroll |
| 1991 | Protorothyrididae Boy and Martens p. 365 fig. 6 |
| 2005 | Protorothyrididae Martens et al. |
| 2006 | Protorothyrididae Müller and Reisz p. 505 fig. 2 |
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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.
Fm. †Protorothyrididae Price 1937
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Invalid names: Romeriidae Price 1937 [invalid subgroup]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L.I. Price 1937 | Skull slender and acuminate. Snout rather sharp. Eyes large, centrally located. Parietals deeply emarginated along occipital crest. Vestigial otic notch with reduced supra-temporal and parietal above and squamosal below. The supra-temporal does not appear to touch the postorbital. Occipital plate slanting gently backward from crest. Pineal foramen quite small and quite close to occipital crest, resembling closely the more specialized pelycosaurian condition. |
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 Westphalian A to the top of the Artinskian or 318.70000 to 279.30000 Ma
Collections (9 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Westphalian A | Canada (Nova Scotia) | Hylonomus lyelli (86946) Hylonomus lyelli, Hylerpeton curtidentatum, Hylonomus wymani, Hylonomus latidens (28069) | |
| Westphalian C - Westphalian D | Canada (Nova Scotia) | Paleothyris acadiana (80111) | |
| Westphalian D | USA (Illinois) | Cephalerpeton ventriarmatum (79598) | |
| Westphalian D | Czech Republic (Pilsen) | Brouffia orientalis, Coelostegus prothales, Hylonomus acuminatus (84835) | |
| Westphalian D | USA (Ohio) | Sauropleura longipes (85292) | |
| Asselian | USA (Texas) | Protorothyris archeri (79163) | |
| Asselian | USA (West Virginia) | Melanothyris morani (85178) | |
| Artinskian | USA (Oklahoma) | Protorothyrididae indet. (67862) |