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Pyramus myiformis
Taxonomy
Pyramus myiformis was named by Dana (1847). Its type specimen is USNM 3587 and is a 3D body fossil. Its type locality is Wollongong Point, Illawarra (USNM coll), which is in a Wordian coastal siliciclastic in the Gerringong Formation of Australia. It is the type species of Pyramus.
It was recombined as Maeonia myiformis by Dana (1849).
It was recombined as Maeonia myiformis by Dana (1849).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1847 | Pyramus myiformis Dana p. 157 |
| 1847 | Notomya clavata M'Coy p. 304 figs. Pl 15, fig 4 |
| 1847 | Notomya securiformis M'Coy p. 304 figs. Pl 15, figs 5,5a |
| 1847 | Notomya ovalis M'Coy p. 305 |
| 1847 | Notomya ovalis McCoy p. 305 |
| 1849 | Maeonia axinia Dana p. 696 figs. Pl 5, fig 5 |
| 1849 | Maeonia myiformis Dana p. 697 figs. Pl 6, fig 4 |
| 1967 | Pyramus myiformis Runnegar p. 37 figs. Pl 2, figs 11-18; pl 3 fig 1 |
| 1969 | Pyramus myiformis Waterhouse p. 79 figs. Pl 20, figs 6,7 |
| 1988 | Pyramus myiformis Waterhouse p. 191 figs. Pl 9, fig 4; pl 16, figs 1-5,7; pl 17, figs 1,2,7,8; pl 20, figs 3,6,7 |
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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.
†Pyramus myiformis Dana 1847
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Invalid names: Maeonia axinia Dana 1849 [synonym], Notomya clavata M'Coy 1847 [synonym], Notomya ovalis M'Coy 1847 [synonym], Notomya securiformis M'Coy 1847 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 33.5 | 19.0 | 45.0 | 35.0 | 8.06 | |
| valve height | 5 | 37.1 | 28.5 | 49.0 | 38.0 | 9.12 |
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| Source: o = order, c = class | |||||
| Reference: Aberhan et al. 2004 | |||||
Age range: base of the Wordian to the top of the Wuchiapingian or 266.90000 to 254.17000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Wordian | New Zealand (Southland) | Pyramus myiformis (41767) | |
| Wordian | Australia (New South Wales) | Maeonia axinia (133337) Notomya ovalis (133347) Notomya securiformis, Notomya clavata (133342) Pyramus myiformis (105157 type locality: 133336 133747) Pyramus myiformis, Maeonia axinia (83172) | |
| Wuchiapingian | Australia (Queensland) | Pyramus myiformis (83216 85873 133746) |