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Drilluta jacksonensis
Taxonomy
Volutoderma jacksonensis was named by Anderson (1958). Its type specimen is CASG 445.16 and is a 3D body fossil.
It was recombined as Drilluta jacksonensis by Saul and Popenoe (1993).
It was recombined as Drilluta jacksonensis by Saul and Popenoe (1993).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1958 | Volutoderma jacksonensis Anderson p. 174 figs. pi. 21, fig. 1 |
1993 | Drilluta jacksonensis Saul and Popenoe p. 368 figs. Figures 67-72 |
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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.
†Drilluta jacksonensis Anderson 1958
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Diagnosis
Reference | Diagnosis | |
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L. R. Saul and W. P. Popenoe 1993 | A large Drilluta with a weakly developed sub- sutural collar, moderately strong shoulder, elongate body whorl, 13 to 18 wide-spaced strong, sigmoidal collabral ribs, and faint spiral sculpture on base of body whorl and siphonal neck. Shoulder at about mid whorl height on spire. |
Measurements
No measurements are available
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Source: f = family, c = class | |||||
References: Hendy et al. 2009, Kiessling 2004 |
Age range: base of the Late/Upper Turonian to the top of the Turonian or 93.50000 to 89.80000 Ma
Collections (8 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Turonian | USA (California) | Drilluta jacksonensis (86785 222080) Volutoderma jacksonensis (80930 80936) | |
Turonian | USA (Oregon) | Volutoderma jacksonensis (158110) | |
Turonian - Santonian | USA (California) | Volutoderma jacksonensis (80942) | |
Late/Upper Turonian | USA (California) | Drilluta jacksonensis (222117) | |
Late/Upper Turonian | USA (Oregon) | Volutoderma jacksonensis (86813) |