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Chilostomelloidea
Taxonomy
Chilostomelloidea was named by Brady (1881). It is extant. It was considered monophyletic by Brady (1881).
It was assigned to Rotaliida by Brady (1881), Missotti (2022).
It was assigned to Rotaliida by Brady (1881), Missotti (2022).
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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.
Superfm. Chilostomelloidea Brady 1881
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Fm. †Alabaminidae Hofker 1951
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G. Alabamina Toulmin 1941
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†Alabamina kaasschieteri Bertels 1964
†Alabamina midwayensis Brotzen 1948
G. †Charltonina Bermúdez 1952
G. †Clinapertina Tjalsma and Lohmann 1983
G. †Conorotalites Kaever 1958
G. Osangularia Brotzen 1940
G. †Valvalabamina Reiss 1963
Fm. †Anomalinidae
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G. Anomalina d'Orbigny 1826
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†Anomalina ammonoides Reuss 1844
†Anomalina bentonensis Morrow 1934
†Anomalina californiensis Cushman and Hobson 1935
†Anomalina garzaensis Cushman and Siegfus 1939
G. Anomalinoides Brotzen 1942
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†Anomalinoides acuta Plummer 1927
†Anomalinoides anamariae Bertels 1964
Anomalinoides flintii Cushman 1931
†Anomalinoides globosa Brotzen 1945
†Anomalinoides praeacutus Vasilenko 1950
†Anomalinoides welleri Plummer 1927
G. Parrelloides Hofker 1956
Fm. Gavelinellidae Hofker 1956
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Subfm. Gavelinellinae Hofker 1956
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G. †Berthelina Malapris 1965
G. †Conorbinoides Kaiho 1998
G. Echigoina Matsunaga 1963
G. †Globogyroidina Kaiho 1992
G. †Notoplanulina Malumián and Masiuk 1976
G. †Paralabamina Hansen 1970
Subfm. †Gavellinellinae Hofker 1956
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G. †Gavelinella Brotzen 1942
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†Gavelinella danica Brotzen 1940
†Gavelinella midwayensis Plummer 1927
Invalid names: Pseudovalvulineria Brotzen 1942 [synonym]
G. Gyroidina d'Orbigny 1826
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†Gyroidina condoni Cushman and Schenck 1928
†Gyroidina octocamerata Cushman and Hanna 1927
†Gyroidina orbicularis d'Orbigny 1865
†Gyroidina patagonica Camacho 1954
†Gyroidina planulata Cushman and Renz 1941
Subfm. Gyroidinoidinae Saidova 1981
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G. †Rotaliatina Cushman 1925
G. †Sliteria Gawor-Biedowa 1992
G. †Stensioeina Brotzen 1936
G. †Saitoella Kaiho 1992
Invalid names: Trichohyalidae Saidova 1981 [empty]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| H. B. Brady 1881 | With Reuss's genera Chilostomella and Allomorphina, which together from his family Cryptostegia, I have associated Seguenza's genus Ellipsoidina. The anomalous characters of the latter, viewed as a Nodosarian, I pointed out many years ago, and had I then known the genus Chilostomella by anything more than figures, I should have suggested the present position for it. The primary difference in the structure of these two types consists in the fact that in Chilostomella the segments alternate, the attachment to each other being at one side, and the aperture first at one end and then at the other, whilst in Ellipsoidina the attachment is at the base, the segments grow in the same direction, and consequently the aperture is always at the same end. |