| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Taxonomy
Kirkella accliva was named by Hintze (1953) [Paratypes: 26286-88, 26275 (AMNH).]. Its type specimen is 26289 (AMNH), a cephalon/head (cranidium), and it is a 3D body fossil.
It was recombined as Ptyocephalus accliva by Ross (1970), Young (1973); it was recombined as Ptyocephalus acclivus by Dean (1989).
It was recombined as Ptyocephalus accliva by Ross (1970), Young (1973); it was recombined as Ptyocephalus acclivus by Dean (1989).
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.
†Ptyocephalus acclivus Hintze 1953
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: base of the Tremadoc to the top of the Blackhillsian or 486.40000 to 471.30000 Ma
Collections (7 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tremadoc | Canada (Alberta) | Ptyocephalus acclivus (10935) | |
| Blackhillsian | USA (Utah) | Kirkella accliva (104126 104127 104128 105780) Ptyocephalus accliva (69261) | |
| Blackhillsian | USA (Nevada) | Ptyocephalus accliva (104553) |