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Cyathaspidiformes
Taxonomy
Cyathaspidiformes was named by Kaier (1930). It is not extant.
It was reranked as the order Cyathaspidiformes by Elliott (2016), Nelson et al. (2016) and Van Der Laan (2019).
It was assigned to Pteraspidomorphi by Long (2011); and to Heterostraci by Elliott (2016), Nelson et al. (2016) and Van Der Laan (2019).
It was reranked as the order Cyathaspidiformes by Elliott (2016), Nelson et al. (2016) and Van Der Laan (2019).
It was assigned to Pteraspidomorphi by Long (2011); and to Heterostraci by Elliott (2016), Nelson et al. (2016) and Van Der Laan (2019).
Subtaxa
Synonymy list
Year | Name and author |
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1930 | Cyathaspidiformes Kaier |
2011 | Cyathaspidiformes Long p. 241 |
2016 | Cyathaspidiformes Elliott p. 1213 |
2016 | Cyathaspidiformes Nelson et al. p. 28 |
2019 | Cyathaspidiformes Van Der Laan p. 17 |
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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.
Or. †Cyathaspidiformes Kaier 1930
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Subor. †Cyathaspidoidei
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Invalid names: Americaspidae Fowler 1947 [empty], Irregularaspidae Kiaer and Heinz 1935 [empty]
Subor. †Siberiaspidoidei
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: subp = subphylum, p = phylum | |||||
Reference: Kiessling 2004 |
Age range: Lochkovian or 419.20000 to 410.80000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Lochkovian | Norway | Dinaspidella sp. (26929) |