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Maxwellia
Taxonomy
Maxwellia was named by Baily (1950) [Sepkoski's age data: T Plio R]. It is extant.
It was assigned to Muricinae by Abbott (1974); and to Neogastropoda by Sepkoski (2002).
It was assigned to Muricinae by Abbott (1974); and to Neogastropoda by Sepkoski (2002).
Species
Synonymy list
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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.
G. Maxwellia Baily 1950
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†Maxwellia eldridgei Arnold 1907
Maxwellia gemma Sowerby II 1879 [gem murex]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range
Maximum range based only on fossils: base of the Early/Lower Pliocene to the top of the Late/Upper Pleistocene or 5.33300 to 0.01170 Ma
Minimum age of oldest fossil (stem group age): 3.6 Ma
Minimum age of oldest fossil (stem group age): 3.6 Ma
Collections (22 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Pliocene | USA (California) | Purpura eldridgei (96911) | |
| Zanclean - Gelasian | USA (California) | M. eldridgei (214267) | |
| Late/Upper Pliocene | USA (California) | M. eldridgei (238622) M. gemma (238435 238436 238459 238605) Purpura gemma (200398) | |
| Early/Lower Pleistocene | USA (California) | M. gemma (202495) | |
| Pleistocene | Mexico (Baja California) | M. gemma (96593) | |
| Quaternary | USA (California) | M. gemma (37946) | |
| Middle Pleistocene | USA (California) | M. gemma (202492 202968) M. gemma, M. eldridgei (203114) Murex eldridgei, Murex gemma (203113) | |
| Late/Upper Pleistocene | Mexico | M. gemma (67641) | |
| Late/Upper Pleistocene | Mexico (Baja California) | M. gemma (96591) | |
| Late/Upper Pleistocene | USA (California) | M. gemma (96566 160361 223074 240555) Purpura gemma (59063) |