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Pachymyonia triangulata
Taxonomy
Pachymyonia triangulata was named by Waterhouse (1969). It is not extant. Its type specimen is TM 3599. Its type locality is GS3616, Productus Creek, Letham Burn (D44/f9478), which is in a Wordian marine horizon in the Mangarewa Formation of New Zealand.
Synonymy list
| Year | Name and author |
|---|---|
| 1969 | Pachymyonia triangulata Waterhouse p. 69 figs. pl. 17, figs. 2, 5 |
| 1983 | Pachymyonia triangulata Waterhouse p. 252 figs. Pl 5, fig 9 |
| 1987 | Pachymyonia triangulata Waterhouse p. 171 figs. Pl 11, fig 7 |
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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.
†Pachymyonia triangulata Waterhouse 1969
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 6 | 50.5 | 31.7 | 71.0 | 53.0 | 13.1 |
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| Source: g = genus, c = class | |||||
| References: Aberhan et al. 2004, Clapham 2015 | |||||
Age range: base of the Wordian to the top of the Capitanian or 266.90000 to 259.51000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | New Zealand (Southland) | Pachymyonia triangulata (type locality: 41767) | |
| Capitanian | New Zealand (Southland) | Pachymyonia triangulata (41777 41788 41789) | |
| Wuchiapingian | Australia (Queensland) | Pachymyonia triangulata (98098 104763 120329 120336 120340 120341 120342) |