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Plectofrondiculariidae
Taxonomy
Plectofrondiculariidae was named by Cushman (1927). It is extant. It was considered unknown by Hayward et al. (2012).
It was assigned to Polymorphinina by Hayward et al. (2012).
It was assigned to Polymorphinina by Hayward et al. (2012).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1927 | Plectofrondiculariidae Cushman |
| 2012 | Plectofrondiculariidae Hayward et al. p. 140 |
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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.
Fm. Plectofrondiculariidae Cushman 1927
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G. †Parafrondicularia Asano 1938
G. †Plectofrondicularia Liebus 1902
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†Plectofrondicularia basispinata Cushman 1935
†Plectofrondicularia kerni Cook 1959
†Plectofrondicularia mexicana Cushman 1926
†Plectofrondicularia minuta Sullivan 1962
†Plectofrondicularia miocenica Cushman 1926
†Plectofrondicularia oregonensis Cushman et al. 1947
†Plectofrondicularia packardi Cushman and Schenck 1928
†Plectofrondicularia parri Finlay 1939
†Plectofrondicularia searsi Cushman et al. 1947
†Plectofrondicularia trinitatensis Cushman and Jarvis 1929
†Plectofrondicularia vaughani Cushman 1927
†Plectofrondicularia virginiana Cushman and Cederstrom 1949
†Plectofrondicularia vokesi Cushman et al. 1947
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| B.W. Hayward et al. 2012 | Test elongate, laterally compressed, biserial becoming uniserial, often with chevron-shaped chambers. Terminal aperture with slightly irregular ribs extending radially inwards form the lip into an oval aperture. |