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Acidusus cassis
Taxonomy
Ptychagnostus (Ptychagnostus) cassis was named by Öpik (1961).
It was recombined as Acidusus cassis by Laurie (2008).
It was recombined as Acidusus cassis by Laurie (2008).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Ptychagnostus (Ptychagnostus) cassis Öpik pp. 77-80 figs. pl. 20, figs 4a-13 |
| 2008 | Acidusus cassis Laurie |
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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.
†Acidusus cassis Öpik 1961
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Kiessling 2004, Hendy 2009 | |||||
Age range: base of the Boomerangian to the top of the Menevian or 500.50000 to 499.50000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Menevian | USA (Utah) | Ptychagnostus cassis (10572) | |
| Boomerangian | Australia (Queensland) | Ptychagnostus cassis (225231) |