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Pygurostoma
Taxonomy
Pygurostoma was named by Cotteau and Gauthier (1895) [Sepkoski's age data: K Coni K Maes-u Sepkoski's reference number: 942,997].
It was assigned to Faujasiidae by Kier (1962), Kier (1966); and to Cassiduloida by Smith (1995), Sepkoski (2002).
It was assigned to Faujasiidae by Kier (1962), Kier (1966); and to Cassiduloida by Smith (1995), Sepkoski (2002).
Species
Entered
by J. Sepkoski on 2003-01-23; modified by M. Uhen on 2019-12-12
Synonymy list
| Year | Name and author |
|---|---|
| 1895 | Pygurostoma Cotteau and Gauthier p. 51 |
| 1962 | Pygurostoma Kier p. 134 |
| 1966 | Pygurostoma Kier p. U513 |
| 1995 | Pygurostoma Smith p. 199 |
| 2002 | Pygurostoma 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. †Pygurostoma Cotteau and Gauthier 1895
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†Pygurostoma geometricum Morton 1833
†Pygurostoma morgani Cotteau and Gauthier 1895
†Pygurostoma pasionense Cooke 1949
Diagnosis
No diagnoses are available