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Globotruncanita
Taxonomy
Globotruncanita was named by Reiss (1957) [Sepkoski's age data: K Camp K Maes-u]. It was considered unknown by Loeblich and Tappan (1988).
It was assigned to Globotruncanidae by Loeblich and Tappan (1988); to Globotruncaninae by Longoria and VonFeldt (1991); and to Foraminiferida by Sepkoski (2002).
It was assigned to Globotruncanidae by Loeblich and Tappan (1988); to Globotruncaninae by Longoria and VonFeldt (1991); and to Foraminiferida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1957 | Globotruncanita Reiss |
| 1988 | Globotruncanita Loeblich and Tappan |
| 1991 | Globotruncanita Longoria and VonFeldt p. 209 |
| 2002 | Globotruncanita Sepkoski |
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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.
G. †Globotruncanita Reiss 1957
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†Globotruncanita calcarata Cushman 1927
†Globotruncanita conica White 1928
†Globotruncanita elevata Brotzen 1934
†Globotruncanita stuarti de Lapparent 1918
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Loeblich and H. Tappan 1988 | Test highly trochospiral; chamber form variable, mostly polygonal in outline; single-keeled throughout; keel present on all chambers (except the earliest ones), distally dichotomic with dorsoseptal and ventro-septal as well as periumbilical extensions; spine-shaped extensions of the chambers present in some forms; cameral aperture umbilical, single; labial aperture pointing strongly backwards, in reflexed position opening into the umbilical cavity or suprasuturally towards the periphery; lips much longer on the distal side than on the proximal one, extremely highly arched, much narrower at the junction with the corresponding chamber and trumpet-shaped, overriding each other or fusing the strongly recurving distal ends and forming an umbilical cover-plate covering entirely the umbilical cavity with labial apertures opening towards the periphery; umbilicus large, partly or entirely covered by the apertural lips. |