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Procolophon trigoniceps
Taxonomy
Procolophon trigoniceps was named by Owen (1876). Its type specimen is BMNH R1726, a skull, and it is a 3D body fossil. Its type locality is Donnybrook (Queenstown District), which is in an Induan/Olenekian fluvial mudstone in the Katberg Formation of South Africa. It is the type species of Procolophon.
Synonyms
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Synonymy list
Year | Name and author |
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1876 | Procolophon trigoniceps Owen p. 25 figs. 4-7 Pl. 20 |
1876 | Procolophon minor Owen p. 26 figs. 8-12 Pl. 20 |
1878 | Procolophon griersoni Seeley p. 797 figs. 1-3 pl. XXXII |
1878 | Procolophon cuneiceps Seeley p. 799 figs. 7, 8 pl. XXXII |
1878 | Procolophon laticeps Seeley p. 801 figs. 4-6 pl. XXXII |
1889 | Procolophon trigoniceps Seeley p. 269 figs. 7-9 pl. 9 |
1903 | Procolophon trigoniceps Broom p. 9 |
1905 | Procolophon baini Broom p. 332 |
1905 | Procolophon minor Seeley p. 218 fig. 30 |
1905 | Procolophon trigoniceps Seeley p. 220 fig. 31 |
1905 | Procolophon cuneiceps Seeley pp. 221, 224 fig. 33 |
1905 | Procolophon griersoni Seeley p. 221 |
1905 | Procolophon laticeps Seeley pp. 221, 223 fig. 32 |
1905 | Procolophon platyrhinus Seeley p. 226 fig. 35 |
1905 | Procolophon sphenorhinus Seeley p. 226 fig. 36 |
1913 | Procolophon baini Broom p. 362 |
1913 | Procolophon minor Broom p. 362 |
1913 | Procolophon trigoniceps Broom p. 362 |
1939 | Procolophon baini Huene p. 508 |
1939 | Procolophon trigoniceps Huene p. 508 |
1946 | Procolophon baini Colbert p. 258 |
1946 | Procolophon trigoniceps Colbert p. 258 |
1975 | Procolophon trigoniceps Colbert and Kitching p. 3 figs. 1-24 |
1983 | Procolophon trigoniceps Lavina p. 53 |
1983 | Procolophon pricei Lavina p. 54 figs. 1-17 |
1985 | Procolophon trigoniceps Carroll and Lindsay figs. 1, 3-14 |
2002 | Procolophon brasiliensis Cisneros and Schultz p. 642 figs. 1, 2 |
2002 | Procolophon trigoniceps Cisneros and Schultz p. 642 |
2008 | Procolophon trigoniceps Cisneros p. 15 figs. 1-8, 9C |
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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.
†Procolophon trigoniceps Owen 1876
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Invalid names: Procolophon baini Broom 1905 [synonym], Procolophon brasiliensis Cisneros and Schultz 2002 [synonym], Procolophon cuneiceps Seeley 1878 [synonym], Procolophon griersoni Seeley 1878 [synonym], Procolophon laticeps Seeley 1878 [synonym], Procolophon minor Owen 1876 [synonym], Procolophon platyrhinus Seeley 1905 [synonym], Procolophon pricei Lavina 1983 [synonym], Procolophon sphenorhinus Seeley 1905 [synonym]
Diagnosis
Reference | Diagnosis | |
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E. H. Colbert and J. W. Kitching 1975 | see generic diagnosis | |
E. L. Lavina 1983 (Procolophon pricei) | Translated: [Procolophonid with a snout shorter and more rounded than in the type secies of the genus. Vomerine teeth are arranged in shape of an inverted "V" and thus are arranged differently from Procolophon trigoniceps. The posteromedial row of palatine teeth does not extend onto anterolateral portion of the pterygoid, in contrast to the condition seen in the African species. The interpterygoidal vacuity is significantly larger than in P. trigoniceps.] | |
J. C. Cisneros 2008 | see generic diagnosis |
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: Olenekian or 251.20000 to 247.20000 Ma
Collections (14 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Early/Lower Triassic | Antarctica | Procolophon trigoniceps (27266 87410 87414) | |
Induan - Olenekian | South Africa (Free State) | Procolophon sp. (94365) Procolophon trigoniceps (88282 98602) | |
Induan - Olenekian | South Africa (Eastern Cape) | Procolophon trigoniceps, Procolophon minor, Procolophon griersoni, Procolophon cuneiceps, Procolophon laticeps (type locality: 13043) Procolophon trigoniceps, Procolophon platyrhinus, Procolophon sphenorhinus (94309) | |
Induan - Olenekian | Brazil (Rio Grande do Sul) | Procolophon brasiliensis (93720) Procolophon pricei (94112) Procolophon trigoniceps (99232 99233 99234) | |
Olenekian | South Africa (Eastern Cape) | Procolophon trigoniceps (92309) |