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Acanthina (Monoceras) norna
Taxonomy
Acanthina (Monoceras) norna was named by Nomland (1917). It is extant. Its type specimen is UCMP 11314, a shell. Its type locality is UCMP loc. 2276, which is in a Miocene marine sandstone in the Santa Margarita Formation of California.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1917 | Acanthina (Monoceras) norna Nomland p. 309 figs. Plate 19, figures 3a, 36 |
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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.
Acanthina (Monoceras) norna Nomland 1917
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: f = family, c = class | |||||
References: Hendy et al. 2009, Kiessling 2004 |
Age range: Late/Upper Miocene or 11.63000 to 5.33300 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Miocene | USA (California) | Acanthina norna (type locality: 216199) |