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Gigantaspis
Taxonomy
Gigantaspis was named by Heintz (1962).
It was reranked as Protaspis (Gigantaspis) by Denison (1970).
It was assigned to Protaspis by Denison (1970); to Pteraspididae by Blieck et al. (2002); and to Protopteraspididae by Randle and Sansom (2017).
It was reranked as Protaspis (Gigantaspis) by Denison (1970).
It was assigned to Protaspis by Denison (1970); to Pteraspididae by Blieck et al. (2002); and to Protopteraspididae by Randle and Sansom (2017).
Synonymy list
| Year | Name and author |
|---|---|
| 1962 | Gigantaspis Heintz |
| 1970 | Protaspis (Gigantaspis) Denison p. 19 |
| 2002 | Gigantaspis Blieck et al. p. 812 |
| 2017 | Gigantaspis Randle and Sansom p. 596 |
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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. †Gigantaspis Heintz 1962
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| R. H. Denison 1970 | Similar to the subgenus Protaspis, from which it is distinguished by the very slight vaulting of the dorsal disc, the up- right dorsal spine, the relatively longer rostral plate, and by the slit- like branchial openings facing upward between the posterior ends of the branchial plates and the dorsal disc. |
Measurements
No measurements are available
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| Source: subp = subphylum, p = phylum | |||||
| Reference: Kiessling 2004 | |||||