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Robertinina
Taxonomy
Robertinina was named by Loeblich and Tappan (1984). It is extant. It was considered monophyletic by Loeblich and Tappan (1984).
It was assigned to Robertinida by Loeblich and Tappan (1984); and to Foraminiferida by Margerel (2012).
It was assigned to Robertinida by Loeblich and Tappan (1984); and to Foraminiferida by Margerel (2012).
Synonymy list
Year | Name and author |
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1984 | Robertinina Loeblich and Tappan p. 35 |
2012 | Robertinina Margerel |
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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. Robertinina Loeblich and Tappan 1984
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Superfm. †Conorboidoidea Thalmann 1952
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Superfm. †Duostominacea Brotzen 1963
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Fm. †Duostominidae Brotzen 1963
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G. †Diplotremina
G. †Duostomina Kristan-Tollmann 1960
G. †Variostoma
Superfm. Robertinacea Reuss 1850
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Fm. Epistominidae Wedekind 1937
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Subfm. Epistomininae Wedekind 1937
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G. †Epistomina
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†Epistomina eocenica Cushman and Hanna 1927
†Epistomina ramonensis Cushman and Kleinpell 1934
G. †Streblus Fischer 1817
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†Streblus japonicus Uchio 1950
Invalid names: Pseudoeponides Kawai et al. 1950 [synonym]
Superfm. Robertinoidea Reuss 1850
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G. Saintclairoides McCulloch 1981
Diagnosis
Reference | Diagnosis | |
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A. R. Loeblich and H. Tappan 1984 | Test planispirally to trochospirally enrolled; chambers commonly with internal partition related to apertural foramen; wall of hyaline perforate, ultrastructurally and optically radiate aragonite (orthorhombic crystal form of calcium carbonate), the hexagonal prisms with c-axis normal to the wall surface, and basal pinacoid parallel to the surface, prisms in bundles surrounded by organic sheaths; extremely fine wall perforations may be localized in pore fields. M. Triassic to Holocene.
Remarks: The hyaline perforate, optically radiate aragonitic wall characterizes taxa of this suborder. |