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Acrospira
Taxonomy
Acrospira was named by Batten (1985) [Sepkoski's age data: P Leon P Guad Sepkoski's reference number: 797]. Its type is Acrospira cristata.
It was assigned to Loxonematacea by Batten (1985); and to Neotaenioglossa by Sepkoski (2002).
It was assigned to Loxonematacea by Batten (1985); and to Neotaenioglossa by Sepkoski (2002).
Species
A. cristata (type species)
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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.
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 4.76 | 3.90 | 6.00 | 4.60 | 1.07 | |
| shell diameter | 3 | 2.75 | 2.20 | 3.50 | 2.70 | 0.656 |
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| Source: superf = superfamily, o = order | |||||
| Reference: Bambach et al. 2007 | |||||