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Drilluta sicca
Taxonomy
Drilluta sicca was named by Saul and Popenoe (1993). Its type specimen is CASG 445.31 and is a 3D body fossil. Its type locality is CAS Loc. 445 - Phoenix, which is in a Turonian coastal siliciclastic in Oregon.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Drilluta sicca Saul and Popenoe p. 370 figs. Figures 73-82 |
| 2005 | Drilluta sicca Haggart et al. fig. 6.9 |
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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 sicca Saul and Popenoe 1993
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| L. R. Saul and W. P. Popenoe 1993 | A volutiform Drilluta with moderately devel- oped, wrinkled collar, slightly concave ramp, and 10-12 strongly shouldered, nearly straight collabral ribs per whorl. On spire, shoulder at about two-thirds whorl height. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range: Early/Lower Turonian or 93.90000 to 89.80000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Turonian | Canada (British Columbia) | Drilluta sicca (210491 210513) | |
| Late/Upper Turonian | USA (California) | Drilluta sicca (215288) | |
| Late/Upper Turonian | USA (Oregon) | Drilluta sicca (type locality: 86813) | |
| Turonian | USA (California) | Drilluta sicca (219080 222076 222080) | |
| Turonian | USA (Oregon) | Drilluta sicca (176024) |