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Chasmataspididae
Taxonomy
Chasmataspididae was named by Caster and Brooks (1956). It is not extant. Its type is Chasmataspis. It is the type family of Chasmataspidacea.
It was assigned to Chasmataspidacea by Bergström (1975); and to Chasmataspidida by Dunlop et al. (2003), Dunlop et al. (2020).
It was assigned to Chasmataspidacea by Bergström (1975); and to Chasmataspidida by Dunlop et al. (2003), Dunlop et al. (2020).
Subtaxa
Chasmataspis (type genus)
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Chasmataspididae Caster and Brooks |
| 1975 | Chasmataspididae Bergström p. 303 |
| 2003 | Chasmataspididae Dunlop et al. p. 222 |
| 2020 | Chasmataspididae Dunlop et al. p. 16 |
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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.
Fm. †Chasmataspididae Caster and Brooks 1956
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: p = phylum | |||||
| Reference: Kiessling 2004 | |||||