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Bucania pojetai
Taxonomy
Bucania pojetai was named by Wahlman (1992). It is not extant. Its type locality is Rowena Ferry, Lake Cumberland, near Rowena, which is in a Maysvillian carbonate limestone in the Leipers Formation of Kentucky.
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.
†Bucania pojetai Wahlman 1992
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| G.P. Wahlman 1992 | Shell moderately large (up to 43 mm long), gradually expanding; umbilici large; whorl shape reniform in submaturity, cordate in maturity; growth lines wrinkled in maturity.
Shell moderately large, rate of whorl expansion gradual. Umbilicus large and circular in appearance, showing relatively loose style of coiling. Submature whorls depressed and reniform in outline, broadly and evenly rounded dorsally, with well-rounded umbilical shoulders and gently concave ventral side covering only the dorsum of the previous whorl; with growth toward maturity, length of aperture increases at greater rate than width, so that dorsum becomes jutting and angular, and apertural outline becomes subtriangular to cordate. Thickness of shell unknown, but parietal lip became moderately thick in adulthood. Slit unknown; selenizone a low rounded ridge showing only faint lunulae. Growth lines preserved as low wrinkles (almost rugose) fairly closely spaced; lines swing back over dorsum very gently, reflecting only a shallow anteromedian apertural sinus; wrinkled growth lines become stronger with growth. No revolving ornament known. |
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Kiessling 2004, Hendy 2009, Hendy et al. 2009 | |||||
Age range: Maysvillian or 450.20000 to 449.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Maysvillian | USA (Kentucky) | Bucania pojetai (type locality: 154583) |