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Pachydiscus (Pachydiscus) paulsoni
Taxonomy
Parapuzosia paulsoni was named by Young (1963).
It was recombined as Pachydiscus (Pachydiscus) paulsoni by Cobban and Kennedy (1992) and Cobban and Kennedy (1992).
It was recombined as Pachydiscus (Pachydiscus) paulsoni by Cobban and Kennedy (1992) and Cobban and Kennedy (1992).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Parapuzosia paulsoni Young |
| 1992 | Pachydiscus (Pachydiscus) paulsoni Cobban and Kennedy p. 69 figs. Pl 1, figs 4-7; pl 4, figs 7-9; pl 5, figs 7,8; text-figs 3A-C,4B |
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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.
†Pachydiscus (Pachydiscus) paulsoni Young 1963
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 38.6 | 31.5 | 47.2 | 39.4 | 11.1 | |
| shell diameter | 2 | 83.3 | 67.0 | 103.6 | 85.3 | 25.9 | |
| shell inflation | 2 | 16.4 | 13.2 | 20.4 | 16.8 | 5.09 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Late/Upper Campanian or 83.50000 to 70.60000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Campanian | USA (Texas) | Pachydiscus paulsoni (221086) | |
| Late/Upper Campanian | USA (Texas) | Pachydiscus paulsoni (73635) |