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Phacops (Trimerocephalus) acuticeps
Taxonomy
Phacops (Trimerocephalus) acuticeps was named by Kayser (1889). It is not extant.
It was recombined as Phacops (Cryphops) acuticeps by Richter and Richter (1926); it was recombined as Cryphops acuticeps by Chlupáč (1966); it was recombined as Acuticryphops acuticeps by Feist (2002), Weyer et al. (2003), Cronier et al. (2004), Feist et al. (2009), Bault et al. (2021).
It was recombined as Phacops (Cryphops) acuticeps by Richter and Richter (1926); it was recombined as Cryphops acuticeps by Chlupáč (1966); it was recombined as Acuticryphops acuticeps by Feist (2002), Weyer et al. (2003), Cronier et al. (2004), Feist et al. (2009), Bault et al. (2021).
Synonymy list
| Year | Name and author |
|---|---|
| 1889 | Phacops (Trimerocephalus) acuticeps Kayser p. 288 figs. pl. 13, fig. 6–6d |
| 1926 | Phacops (Cryphops) acuticeps Richter and Richter p. 162 figs. pl. 9, figs 57–60 |
| 1966 | Cryphops acuticeps Chlupáč p. 107–108 figs. pl. 22, figs 1–3. |
| 2002 | Acuticryphops acuticeps Feist p. 208 figs. 4A–D, F, H |
| 2003 | Acuticryphops acuticeps Weyer et al. p. 74 figs. pl. 1, figs 4, 5, 9, 10 |
| 2004 | Acuticryphops acuticeps Cronier et al. pp. 472 - 479 |
| 2009 | Acuticryphops acuticeps Feist et al. pp. 24 - 25 fig. 5a–q |
| 2021 | Acuticryphops acuticeps Bault et al. p. Supplemental |
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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.
†Phacops (Trimerocephalus) acuticeps Kayser 1889
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. Feist et al. 2009 | Anteriorly large glabella, maximum width anterior to midlength of preoccipital glabella; S1 straight and short; L1 with small lateral lobes of half width of median lobe, anterior facial suture impressed below glabella; anterior border flush with overturned part of glabella; vincular furrow gently curved medially, postvincular area longer (sag.) than vincular furrow; pygidium moderately arched transversely with high, vaulted axis. Axial rings and pleurae well-defined. |
Measurements
No measurements are available
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| Source: g = genus, f = family, subo = suborder, c = class | |||||
| References: Fortey and Owens 1999, Whittington et al. 1997, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Late/Upper Frasnian or 375.20000 to 372.15000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Frasnian | Germany | Phacops acuticeps (234926) |