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Genevievella
Taxonomy
Genevievella was named by Lochmann (1936) [Sepkoski's age data: Cm uMid-u Cm Dres-l Sepkoski's reference number: 81,379,1017]. It is not extant.
It was assigned to Ptychopariida by Sepkoski (2002); and to Llanoaspididae by Jell and Adrain (2002).
It was assigned to Ptychopariida by Sepkoski (2002); and to Llanoaspididae by Jell and Adrain (2002).
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1936 | Genevievella Lochmann |
| 1944 | Nixonella Lochman |
| 1962 | Torridella Lochman and Hu |
| 1967 | Placosema Opik |
| 2002 | Genevievella Jell and Adrain p. 378 |
| 2002 | Genevievella Sepkoski |
| 2002 | Nixonella Sepkoski |
| 2002 | Placosema Sepkoski |
| 2002 | Torridella Sepkoski |
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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. †Genevievella Lochmann 1936
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Invalid names: Nixonella Lochman 1944 [synonym], Placosema Opik 1967 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class | |||||
| References: Hendy 2009, Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: base of the Guzhangian to the top of the Paibian or 500.50000 to 494.00000 Ma
Collections (29 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Menevian | USA (Utah) | G. granulata (230681) G. sp. (10572) | |
| Guzhangian | China (Hunan) | Placosema bigranulosum (49187) | |
| Guzhangian | USA (Texas) | G. spinosa (208668 208764 208986) | |
| Mindyallan | Australia (Queensland) | Placosema caelatum (77515) | |
| Paibian | China (Hunan) | Placosema bigranulosum (49195 126130 126131) | |
| Dresbachian | USA (Wyoming) | G. sp. (225) Nixonella sp. (227) | |
| Dresbachian | USA (Utah) | G. granulatus (50592) | |
| Dresbachian | Canada (Yukon) | G. cuniculaenum (55213 55215) G. raggedi (55220) G. simon, G. campbellina (55211) | |
| Furongian | USA (Utah) | G. sp. (156423 156425 156426 156427) | |
| Merioneth | USA (Vermont) | G. sp. (217) | |
| Merioneth | USA (Pennsylvania) | G. campbellina (77661 77672 77693 77700) G. campbellina, G. pennstatensis (77697) G. pennstatensis (77676) G. plesiochielus (77698) |