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Pegmavalvula delicata
Taxonomy
Pegmavalvula delicata was named by Newell and Boyd (1970). Its type specimen is AMNH 28929, a valve (Left valve), and it is a 3D body fossil. Its type locality is AMNH512, Guadalupe Pass, Guadalupe Mountains, which is in a Roadian slope limestone in the Cherry Canyon Formation of Texas.
Synonymy list
| Year | Name and author |
|---|---|
| 1970 | Pegmavalvula delicata Newell and Boyd p. 266 figs. 7H,I, 27 |
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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.
†Pegmavalvula delicata Newell and Boyd 1970
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| valve height | 7 | 14.6 | 10.2 | 23.6 | 13.7 | 4.55 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Aberhan et al. 2004 | |||||
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Kungurian | USA (Texas) | Pegmavalvula delicata (43491 43492 43494 43517 101785 105931) | |
| Roadian | USA (Texas) | Pegmavalvula delicata (43553 type locality: 81693 101767 102602) | |
| Wordian | USA (Texas) | Pegmavalvula delicata (81636) |