| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Semagnostus
Taxonomy
Semagnostus was named by Nielsen (1997). It is not extant.
It was assigned to Agnostidae by Jell and Adrain (2002).
It was assigned to Agnostidae by Jell and Adrain (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1997 | Semagnostus Nielsen |
| 2002 | Semagnostus Jell and Adrain p. 443 |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order | |||||
| References: Hendy 2009, Kiessling 2004 | |||||