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Plethospira
Taxonomy
Plethospira was named by Ulrich and Scofield (1897) [Sepkoski's age data: O Trem-u O Aren-u]. Its type is Plethospira rotunda.
It was reranked as Seelya (Plethospira) by Schuchert (1900).
It was assigned to Pleurotomariidae by Ulrich and Scofield (1897); to Seelya by Schuchert (1900); to Plethospirinae by Wenz (1938), Knight et al. (1960); to Archaeogastropoda by Sepkoski (2002); and to Hormotomidae by Bouchet et al. (2005).
It was reranked as Seelya (Plethospira) by Schuchert (1900).
It was assigned to Pleurotomariidae by Ulrich and Scofield (1897); to Seelya by Schuchert (1900); to Plethospirinae by Wenz (1938), Knight et al. (1960); to Archaeogastropoda by Sepkoski (2002); and to Hormotomidae by Bouchet et al. (2005).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1897 | Plethospira Ulrich and Scofield |
| 1897 | Seelya Ulrich and Scofield |
| 1900 | Seelya (Plethospira) Schuchert p. 166 |
| 1938 | Plethospira Wenz p. 129 |
| 1960 | Plethospira Knight et al. p. 295 |
| 1960 | Seelya Knight et al. p. 295 |
| 2002 | Plethospira Sepkoski |
| 2002 | Seelya Sepkoski |
| 2005 | Plethospira Bouchet et al. p. 135 |
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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. †Plethospira Ulrich and Scofield 1897
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†Plethospira arenaria Billings 1859
†Plethospira caledoniensis Longstaff 1924
†Plethospira cannonensis Stauffer 1937
†Plethospira cassina Whitfield 1886
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Invalid names: Plethospira subangulata Flower 1968 [synonym]
†Plethospira difficilis Whitfield 1890
†Plethospira emanuelensis Yu 1993
†Plethospira extensa Heller 1954
†Plethospira floweri Fortey and Peel 1990
†Plethospira rotunda Flower 1968
Invalid names: Seelya Ulrich and Scofield 1897 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, o = order | |||||
| References: Wagner 2023, Bambach et al. 2007 | |||||
Age range: base of the Stairsian to the top of the Maysvillian or 483.40000 to 449.60000 Ma
Collections (26 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Ordovician | USA (Texas) | P. sp. (283 293) | |
| Jeffersonian | USA (Texas) | P. sp. (56489) | |
| Tremadoc | USA (Montana) | P. sp. (275) | |
| Tremadoc - Floian | USA (Utah) | P. sp. (154882) | |
| Stairsian | USA (New York) | P. subangulata (289) | |
| Cassinian | USA (Vermont) | Holopea cassina, Pleurotomaria difficilis (154944) | |
| Cassinian | USA (Missouri) | P. arenaria (75549 75550) P. cassina (75552 75561) P. cassina, P. arenaria (75522) | |
| Cassinian | USA (Minnesota) | Hormotoma cannonensis (56647) P. cassina (56645) | |
| Cassinian | Canada (Newfoundland and Labrador) | P. cassina (133140) | |
| Tulean | USA (Montana) | P. sp. (287) P. sp. indet. (174361) | |
| Migneintian | USA (Missouri) | P. extensa (50202) | |
| Arenig | Australia (Western Australia) | Seelya emanuelensis (56626) | |
| Blackhillsian | USA (Texas) | P. rotunda (56486) | |
| Soudleyan | United Kingdom (Wales) | Seelya sp. (3301 192387) | |
| Burrellian | United Kingdom (Scotland) | P. caledoniensis (78001 169263) | |
| Chatfieldian - Maysvillian | Canada (Nunavut) | Seelya ulrlchi (192776) | |
| Maysvillian | USA (Ohio) | Seelya sp. (388) |