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Spirolaxis
Taxonomy
Spirolaxis was named by Monterosato (1913) [Sepkoski's age data: T Mi-m R]. It is extant.
It was assigned to Architectonicidae by Todd (2001); and to Heterostrophia by Sepkoski (2002).
It was assigned to Architectonicidae by Todd (2001); and to Heterostrophia by Sepkoski (2002).
Species
Synonymy list
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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.
G. Spirolaxis Monterosato 1913
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Subg. Spirolaxis (Aguayodiscus) Jaume and Borro 1946
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| Reference: Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Messinian to the top of the Late/Upper Pliocene or 7.24600 to 2.58800 Ma
Minimum age of oldest fossil (stem group age): 5.333 Ma
Minimum age of oldest fossil (stem group age): 5.333 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Messinian | Panama (Colon) | S. sp. (79855) | |
| Zanclean | Panama (Bocas del Toro) | S. sp. (79982) | |
| Late/Upper Pliocene | Jamaica | S. exquisita (58522) | |
| Piacenzian | Costa Rica (Limon) | S. sp. (79800) | |
| Piacenzian | Panama (Bocas del Toro) | S. sp. (61339) |