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Sternotherus bonevalleyensis
Taxonomy
Sternotherus bonevalleyensis was named by Bourque and Schubert (2015). Its type specimen is UF TRO1964, a partial shell, and it is a 3D body fossil. Its type locality is Central |Florida| Phosphate District, which is in a Hemphillian estuary/bay horizon in Florida.
Synonymy list
| Year | Name and author |
|---|---|
| 2015 | Sternotherus bonevalleyensis Bourque and Schubert |
| 2016 | Sternotherus bonevalleyensis Joyce and Bourque |
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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.
†Sternotherus bonevalleyensis Bourque and Schubert 2015
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. R. Bourque and B. W. Schubert 2015 | V1 narrow with lateral sulci contained on the nuchal and not extending onto P1 (shared with all extant Sternotherus, differs from Sternotherus palaeodorus in which V1 overlaps P1); nuchal with slight N1 contact (shared with most extant Sternotherus except Sternotherus odoratus, which lacks contact; this character is polymorphic for S. palaeodorus); M10 and M11 very tall relative to height of P9 and P10; medial crest present posteriorly that terminates on the pygal at the inter-M11 sulcus (shared with Sternotherus minor, Sternotherus carinatus, and some S. odoratus) (costal carination unknown at this time); peripherals much taller than wide; well-developed plastral forelobe kinesis (shared with S. palaeodorus, S. minor, and Sternotherus depressus); plastral hindlobe kinesis absent; axillary notch very small (most narrow in the genus, »19–22% hyoplastron width [mean 21%]); femoral-anal scute notch absent; caudal notch present; inguinal musk duct terminus situated on anterior of P7 (P7.2–7.3, shared with Sternotherus minor peltifer and S. carinatus, more posteriorly situated in S. palaeodorus); posterior margin of anal scutes sharply pointed (shared with extant Sternotherus; the anals of the type specimens of S. palaeodorus are more lobate). |
Measurements
No measurements are available
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| Source: superf = superfamily, c = class, subp = subphylum | |||||
| References: Carroll 1988, Hendy et al. 2009, Uetz 2005 | |||||
Age range: Hemphillian or 10.30000 to 4.90000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hemphillian | USA (Florida) | Sternotherus bonevalleyensis (type locality: 190949) | |
| Late/Upper Hemphillian | USA (Florida) | Sternotherus bonevalleyensis (18599) |