Basic info | Taxonomic history | Classification | Included Taxa |
Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Ringicula (Ringiculopsis) hesperiae
Taxonomy
Ringicula (Ringiculopsis) hesperiae was named by Squires and Saul (2001). Its type specimen is SDSNH 70976, a shell, and it is a 3D body fossil.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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2001 | Ringicula (Ringiculopsis) hesperiae Squires and Saul pp. 59 - 60 figs. Figure 6.7 - 6.13 |
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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.
†Ringicula (Ringiculopsis) hesperiae Squires and Saul 2001
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Diagnosis
Reference | Diagnosis | |
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R. L. Squires and L. R. Saul 2001 | Very small shell, very low spire, marked fold at base of columella, angled posteriorward; a second, almost horiĀzontal, strong fold, and posteriorly an elongate angular welt. InĀterior of outer lip dentate. Sculpture of 21 incised spirals crossed by raised lines. |
Measurements
No measurements are available
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Source: g = genus, f = family, c = class | |||||
References: Hendy et al. 2009, Kiessling 2004 |
Age range: base of the Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma
Collections (6 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Campanian | Mexico (Baja California) | Ringicula hesperiae (86864) | |
Late/Upper Campanian | USA (California) | Ringicula hesperiae (60806 99312) | |
Late/Upper Campanian - Early/Lower Maastrichtian | Mexico (Baja California) | Ringicula hesperiae (190523) | |
Early/Lower Maastrichtian | USA (California) | Ringicula hesperiae (176952 215316) |