| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Pycnodonte (Pegma)
Taxonomy
Pycnodonte (Pegma) was named by Squires and Demetrion (1990) [Sepkoski's age data: T Eo-l T Eo-m-l].
It was reranked as Pegma by Sepkoski (2002).
It was assigned to Pycnodonte by Squires and Demetrion (1990), Squires and Demetrion (1992); and to Pterioida by Sepkoski (2002).
It was reranked as Pegma by Sepkoski (2002).
It was assigned to Pycnodonte by Squires and Demetrion (1990), Squires and Demetrion (1992); and to Pterioida by Sepkoski (2002).
Subtaxa
Species lacking formal opinion data
Pycnodonte antiqua, Pycnodonte antiqua, Pycnodonte antiqua, Pycnodonte antiqua, Pycnodonte ariana, Pycnodonte aucella, Pycnodonte aucella, Pycnodonte baylei, Pycnodonte belli, Pycnodonte biauriculatum, Pycnodonte brongnarti, Pycnodonte brongniarti, Pycnodonte brongniarti, Pycnodonte bryozophila, Pycnodonte burckhardti, Pycnodonte cassis, Pycnodonte cereviciana, Pycnodonte cochlear, Pycnodonte congesta, Pycnodonte cymbiola, Pycnodonte dissimilaris, Pycnodonte flicki, Pycnodonte frauscheri, Pycnodonte gambaensis, Pycnodonte gigantica, Pycnodonte groeberi, Pycnodonte hippopodium, Pycnodonte houzeaui, Pycnodonte kansasense, Pycnodonte kellumi, Pycnodonte mackayi, Pycnodonte mendozana, Pycnodonte mirabile, Pycnodonte miradonensis, Pycnodonte miradonensis, Pycnodonte mutabilis, Pycnodonte mutabilis, Pycnodonte navaniaensis, Pycnodonte navia, Pycnodonte newberryi, Pycnodonte nikitini, Pycnodonte nomada, Pycnodonte paroxis, Pycnodonte praesinzovi, Pycnodonte proboscideum, Pycnodonte pyrotheriorum, Pycnodonte queteletti, Pycnodonte rarilamella, Pycnodonte regionis, Pycnodonte sanfilippoi, Pycnodonte semicoronata, Pycnodonte seymourensis, Pycnodonte seymourianus, Pycnodonte seymouriensis, Pycnodonte simile, Pycnodonte subvesiculosa, Pycnodonte tarda, Pycnodonte telugensis, Pycnodonte uncinella, Pycnodonte vericosa, Pycnodonte vesicularis
Entered
by J. Sepkoski on 2003-01-23; modified by M. Uhen on 2025-06-26
Synonymy list
| Year | Name and author |
|---|---|
| 1990 | Pycnodonte (Pegma) Squires and Demetrion p. 286 |
| 1992 | Pycnodonte (Pegma) Squires and Demetrion p. 39 |
| 2002 | Pegma Sepkoski |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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.
Subg. †Pycnodonte (Pegma) Squires and Demetrion 1990
show all | hide all
†Pycnodonte (Pegma) bajaensis Squires and Demetrion 1990
Diagnosis
No diagnoses are available
Measurements
No measurements are available
|
|
||||
|
|
||||
|
|||||
|
|
||||
|
|
||||
| Source: g = genus, f = family, o = order, c = class | |||||
| References: Steuber 2002, Hendy et al. 2009, Aberhan et al. 2004, Kiessling 2004 | |||||
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ypresian | Mexico (Baja California Sur) | Pycnodonte bajaensis (5496 5507 7928) | |
| Ypresian | Mexico (Baja California) | Pycnodonte bajaensis (5506) | |
| Lutetian | Mexico (Baja California) | Pycnodonte bajaensis (5504 5505) |