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Cytheridea grigsbyi
Taxonomy
Cytheridea grigsbyi was named by Howe and Chambers (1935). It is a 3D body fossil. Its type locality is Wooleys bluff, a bluff on Caney creek, which is in an Eocene marginal marine horizon in Louisiana.
It was recombined as Cytheridea (Clithrocytheridea) grigsbyi by Stephenson (1936).
It was recombined as Cytheridea (Clithrocytheridea) grigsbyi by Stephenson (1936).
Subspecies
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1935 | Cytheridea grigsbyi Howe and Chambers p. 15 figs. Plate I, figure 2,3; Plate II, figure 8,10,17,18; Plate VI, figure 1 |
1936 | Cytheridea (Clithrocytheridea) grigsbyi Stephenson p. 703 figs. Plate 94, figure 8; Text-figures Ic, d, i |
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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.
†Cytheridea grigsbyi Howe and Chambers 1935
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†Cytheridea grigsbyi vicksburgensis Howe and Law 1936
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, o = order, c = class | |||||
References: Kiessling 2004, Jell and Adrain 2002, Bush and Bambach 2015 |
Collections (17 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Eocene | USA (Mississippi) | Cytheridea grigsbyi (191999 192006) | |
Eocene | USA (Louisiana) | Cytheridea grigsbyi (191908 type locality: 191911 191913 191914 191935) | |
Bartonian | USA (Alabama) | Clithrocytheridea grigsbyi (94040) | |
Bartonian | USA (Mississippi) | Cytheridea grigsbyi (3531) | |
Bartonian | USA (Louisiana) | Cytheridea grigsbyi (191922) | |
Priabonian | USA (Alabama) | Clithrocytheridea grigsbyi (94153 94154 94155 94156 94157) | |
Rupelian | USA (Mississippi) | Cytheridea grigsbyi (87171) | |
Oligocene | USA (Alabama) | Cytheridea grigsbyi (191978) |