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Bicarinellata
Taxonomy
Bicarinellata was named by Stigall (2008). It is not extant. Its type is Bicarinella evansi.
It was assigned to Hipponicharionidae by Stigall (2008).
It was assigned to Hipponicharionidae by Stigall (2008).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 2003 | Bicarinella Rode et al. p. 694 figs. 2, 3, 4, 5, 6 |
| 2008 | Bicarinellata Stigall |
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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. †Bicarinellata Stigall 2008
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†Bicarinellata evansi Rode et al. 2003
Invalid names: Bicarinella Rode et al. 2003 [replaced]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. L. Rode et al. 2003 (Bicarinella) | Carapace subtriangular, subamplete, height less than or subequal to length, small (up to 1.6 mm in length); well-developed marginal rim present; posterior margin of carapace rounded with retral swing; anterior margin of carapace weakly acuminate; anterior and posterior lobes present as sharp, linear ridges with well-defined borders; anterior lobe extended into sharp ridge up to one-third carapace length, directed posteroventrally; posteriormost part of anterior ridge with greatest relief and possibly forming node, ridge becoming less pronounced anteriorly; posterior lobe developed as sharp ridge, up to one-third carapace length; dorsal region between anterior and posterior lobes convex, forming low node with indistinct borders. |
Measurements
No measurements are available
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| Source: f = family, c = class | |||||
| References: Benson et al. 1961, Hendy et al. 2009 | |||||
Age range: base of the Atdabanian to the top of the Botomian or 521.00000 to 512.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Atdabanian - Botomian | Antarctica | Bicarinella evansi (49081) |