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Colpospira (Acutospira)
Taxonomy
Colpospira (Acutospira) was named by Kotaka (1959).
It was reranked as Acutospira by Titova (1994).
It was assigned to Turritellinae by Titova (1994); and to Colpospira by Kotaka (1959), Allmon (1996) and Rosenberg et al. (2006).
It was reranked as Acutospira by Titova (1994).
It was assigned to Turritellinae by Titova (1994); and to Colpospira by Kotaka (1959), Allmon (1996) and Rosenberg et al. (2006).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1959 | Colpospira (Acutospira) Kotaka |
| 1994 | Acutospira Titova p. 321 |
| 1996 | Colpospira (Acutospira) Allmon p. 10 |
| 2006 | Colpospira (Acutospira) Rosenberg et al. |
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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.
Subg. †Colpospira (Acutospira) Kotaka 1959
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Colpospira (Acutospira) accisa Watson 1881
Colpospira (Acutospira) atkinsoni Tate and May 1900
Colpospira (Acutospira) smithiana Donald 1900
†Colpospira (Acutospira) tashiroi Kotaka 1959
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Kiessling 2004, Hendy et al. 2009 | |||||
Age range
Maximum range based only on fossils: base of the Priabonian to the top of the Middle Eocene or 38.00000 to 37.71000 Ma
Minimum age of oldest fossil (stem group age): 37.71 Ma
Minimum age of oldest fossil (stem group age): 37.71 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Eocene | Japan | Colpospira tashiroi (71014 71016) | |
| Priabonian | Japan | Colpospira kotakai (179914) |