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Plectofrondicularinae
Taxonomy
Plectofrondicularinae is a subfamily.
It was assigned to Heterohelicidae by Cushman (1927); and to Nodosariidae by Al Menoufy and Shreif (2021).
It was assigned to Heterohelicidae by Cushman (1927); and to Nodosariidae by Al Menoufy and Shreif (2021).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Plectofrondicularinae Cushman p. 62 |
| 2021 | Plectofrondicularinae Al Menoufy and Shreif p. 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.
Subfm. †Plectofrondicularinae
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range
Maximum range based only on fossils: base of the Bartonian to the top of the Aquitanian or 41.03000 to 20.45000 Ma
Minimum age of oldest fossil (stem group age): 37.71 Ma
Minimum age of oldest fossil (stem group age): 37.71 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Lutetian - Bartonian | USA (Washington) | Amphimorphina californica (43340) | |
| Bartonian | USA (California) | Amphimorphina ignota (185234 186057) | |
| Aquitanian | Austria | Amphimorphina haueriana (99160) |