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Insolitotheca
Taxonomy
Insolitotheca was named by Landing and Bartowski (1996).
It was assigned to Hyolithida by Landing and Bartowski (1996) and Landing and Bartowski (1997); and to Orthocerida by Landing et al. (2002).
It was assigned to Hyolithida by Landing and Bartowski (1996) and Landing and Bartowski (1997); and to Orthocerida by Landing et al. (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1996 | Insolitotheca Landing and Bartowski p. 754 |
| 1997 | Insolithotheca Landing and Bartowski p. 353 |
| 2002 | Insolutotheca Landing et al. fig. 4.8 |
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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. †Insolitotheca Landing and Bartowski 1996
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| E. Landing and K.E. Bartowski 1996 | Hyolithids known from straight to dorsally curved conchs with short ligula, comarginal lirae or rugae, and cross-sections that range from a dorsoventrally compressed ellipse to reversed-triangular with narrowly rounded venter; conchs up to 7.5 cm and have transverse septa; low opercula with wide conical shield and peg-like cardinal processes; clavicles absent. |