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Gigantaspis

Pteraspidomorpha - Pteraspidiformes - Protopteraspididae

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).

Synonymy list
YearName and author
1962Gigantaspis Heintz
1970Protaspis (Gigantaspis) Denison p. 19
2002Gigantaspis Blieck et al. p. 812
2017Gigantaspis Randle and Sansom p. 596

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
phylumChordataHaeckel 1874
subphylumCraniata
RankNameAuthor
superclassPteraspidomorphi(Goodrich 1909)
classPteraspidomorpha
subclassHeterostraciLankester 1868
orderPteraspidiformesBerg 1940
familyProtopteraspididaeNovitskaya 1983
genusGigantaspisHeintz 1962

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
ReferenceDiagnosis
R. H. Denison 1970Similar 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.