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Sowerbyella curdsvillensis
Taxonomy
Plectambonites curdsvillensis was named by Foerste (1912).
It was recombined as Sowerbyella curdsvillensis by Cooper (1956), Howe (1979) and Titus (1992).
It was recombined as Sowerbyella curdsvillensis by Cooper (1956), Howe (1979) and Titus (1992).
Sister species lacking formal opinion data
Synonyms
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Synonymy list
Year | Name and author |
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1912 | Plectambonites curdsvillensis Foerste p. 122 figs. pl. 10 f. 15A, B |
1917 | Plectambonites punctostriatus Mather p. 38 figs. pl. 1, figs. 15-17. |
1956 | Sowerbyella curdsvillensis Cooper pp. 780 - 781 figs. pl. 201A f. 1-13 |
1956 | Sowerbyella punctostriata Cooper p. 780 figs. pl. 201A, figs. 1-13 |
1972 | Sowerbyella punctostriata Howe p. 442 figs. pl. 1, fig. 12 |
1979 | Sowerbyella curdsvillensis Howe pp. C1-C2 figs. Plate 1, figures 6-16 |
1992 | Sowerbyella curdsvillensis Titus pp. 769 - 770 figs. 4, 6 |
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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.
†Sowerbyella curdsvillensis Foerste 1912
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Invalid names: Sowerbyella punctostriata Mather 1917 [synonym]
Diagnosis
Reference | Diagnosis | |
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H. J. Howe 1979 | Shell large for the genus; width nearly twice the length; cardinal extremities acute to right-angular; anterior margin broadly rounded. Ornamentation unevenly costellate and faintly beaded; one to five finer costellae grouped between slightly larger ones. Region adjacent to posterior margin displaying weak oblique wrinkles in occasional specimens.
Pedicle valve moderat.ely convex in lateral profile; umbonal region gently inflated. Interior of pedicle valve finely papillose. Teeth small. Adjustordiductor muscle field wide, extending to about midlength; diductors strongly diverging in front of short median septum; paired adductor scars deeply incised into callus deposits of delthyrial floor. Brachial valve concave in lateral profile. Inner surface marked by fine papillose elevations. Adductor muscle field large, ·subcircular in outline, reaching beyond the middle of the valve; inner scars bordered by moderately elevated septa; occasional specimens displaying low median septum. Brachiophores large, strongly divergent, and ending in points; cardinal process strongly elevated ventrally. Interarea short, anacline. |
Measurements
No measurements are available
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Source: g = genus, o = order, c = class, p = phylum, uc = unranked clade | |||||
References: Hendy et al. 2009, Aberhan et al. 2004, Nesnidal et al. 2013 |
Age range: Mohawkian or 457.50000 to 452.50000 Ma
Collections (74 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Blackriveran - Rocklandian | USA (Illinois, Iowa) | Sowerbyella curdsvillensis (23795) | |
Caradoc | USA (Georgia) | Sowerbyella punctostriata (32823 32824 32825 32826 32832) | |
Caradoc | USA (Virginia) | Sowerbyella curdsvillensis (85629 85630 85635 85636 85637 85655 85660 85661 85663 85664 85665 85666 85668 85669 85672 85674 85678 85691 85692 85693 85694 85695 85699 85700 85701 85702) | |
Caradocian | USA (California) | Sowerbyella punctostriata (219306 219309 219320) | |
Caradocian | Canada (Ontario) | Sowerbyella curdsvillensis (26276) Sowerbyella curdsvillensis, Sowerbyella punctostriata (26275) | |
Chatfieldian | USA (Kentucky) | Sowerbyella curdsvillensis (34545) | |
Chatfieldian | Canada (Ontario) | Sowerbyella curdsvillensis (26269 26270 26277) Sowerbyella curdsvillensis, Sowerbyella punctostriata (26263 26268 26271 26273) Sowerbyella punctostriata (26267) | |
Edenian - Maysvillian | Canada (Ontario) | Sowerbyella curdsvillensis (26293) Sowerbyella punctostriata (26294) | |
Kirkfieldian | Canada (Ontario) | Sowerbyella curdsvillensis (26192) | |
Kirkfieldian | USA (Illinois, Iowa) | Sowerbyella curdsvillensis (23797 23798) | |
Kirkfieldian | USA (New York) | Sowerbyella curdsvillensis (75230) | |
Rocklandian | USA (Minnesota) | Sowerbyella curdsvillensis (219962) | |
Rocklandian - Kirkfieldian | USA (Illinois, Iowa) | Sowerbyella curdsvillensis (23796) | |
Rocklandian - Shermanian | USA (Minnesota) | Sowerbyella curdsvillensis (23277 23290) | |
Shermanian | USA (Minnesota) | Sowerbyella curdsvillensis (23278) | |
Shermanian | Canada (Ontario) | Sowerbyella punctostriata (26272) | |
Shermanian | USA (Illinois, Iowa) | Sowerbyella curdsvillensis (23799) | |
Trentonian | USA (Virginia) | Sowerbyella curdsvillensis (34339 34340 34341 34342 34343 34344) | |
Turinian | Canada (Ontario) | Sowerbyella curdsvillensis (26191) | |
Turinian | USA (Kentucky) | Sowerbyella curdsvillensis (77354 99336 99655 100128 100176 101378) | |
Mohawkian | USA (Virginia) | Sowerbyella curdsvillensis (76081 85577) |