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Spirillinina
Taxonomy
Spirillinina was named by Hohenegger and Piller (1975). It is extant. It was considered unknown by Hohenegger and Piller (1975) and Loeblich and Tappan (1987).
It was assigned to Spirillinida by Hohenegger and Piller (1975); to Foraminiferida by Loeblich and Tappan (1984); and to Tubothalamea by Loeblich and Tappan (1987).
It was assigned to Spirillinida by Hohenegger and Piller (1975); to Foraminiferida by Loeblich and Tappan (1984); and to Tubothalamea by Loeblich and Tappan (1987).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Spirillinina Hohenegger and Piller |
| 1984 | Spirillinina Loeblich and Tappan |
| 1987 | Spirillinina Loeblich and Tappan |
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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.
Subor. Spirillinina Hohenegger and Piller 1975
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Fm. Spirillinidae Reuss and Fritsch 1861
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G. †Conicospirillina Cushman 1927
Subfm. †Neotrocholininae Rigaud et al. 2018
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G. †Praepatellina Blau 1987
G. Spirillina Reuss 1862
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†Spirillina bendensis Harlton 1933
Spirillina conoidea Paalzow 1917
†Spirillina infima Strickland 1864
†Spirillina polygyrata Bartenstein and Brand 1937
†Spirillina punctulata Bartenstein and Brand 1937
†Spirillina trochoides Berthelin 1879
Spirillina tuberculata Brady 1878
G. Turrispirillina Cushman 1927
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| J. Hohenegger and W. Piller 1975 | As with the Lagenina, the wall structure is only here in connection with the test morphology and the phylogenetic relationships of diagnostic value.
The wall structure in early representatives of this subordination is two-layered, with an inner inaequigranular and one outer hyaline-radial layer (cf. Plate 8, Fig. 1, 2). In the course of of the Paleozoic Era, the inner layer was lost (see Plate 8, Fig. 3, 4). The housings are generally two-chamber, with a spherical proloculus and a tubular deuteroloculus. This can be strepto- plan- or trochospiral. Protosepta and real septa appear very late in evolutionary terms (chalk) in few forms. The numerous pores are larger in diameter than that of the Lagenina. | |
| A. R. Loeblich and H. Tappan 1987 | Coiling planispiral to high trochospiral, proloculus followed by enrolled tubular undivided chambers or with few chambers per whorl, chambers may be secondarily subdivided; wall of calcite, optically a single crystal or few to a mosaic of crystals; a axis preferred orientation along axis of coiling and c-axis parallel to umbilical surface; may have pseudopores or micropores filled with organic matter and closed by sieve plates, wall formed by marginal accretion, not by calcification of an organic template produced by pseudopodia. U. Triassic to Holocene. |