BIWAELLINAE Davydov, 1984
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publication ID |
https://doi.org/10.35463/j.apr.2024.02.07 |
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DOI |
https://doi.org/10.5281/zenodo.14656336 |
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persistent identifier |
https://treatment.plazi.org/id/039C630F-1162-FFD0-FF49-01BDFD9CF0C9 |
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treatment provided by |
Felipe |
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scientific name |
BIWAELLINAE Davydov, 1984 |
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Subfamily BIWAELLINAE Davydov, 1984 View in CoL
Test shortly fusiform, often asymmetrical. Early stage discoidal; later stage more or less fusiform with acute poles. Septa numerous, unfluted in the center but slightly fluted at the poles, especially in the outer whorls. Chomata low, asymmetrical and bordering a broad and low tunnel. Wall bilayered with a tectum and an inner porous layer. Aperture terminal simple.
Composition: Biwaella Morikawa & Isomi, 1960 ; Douglassites Read & Nestell, 2018 ; Dutkevichites Davydov, 1984 ; Oketaella Thompson, 1951 .
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.