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Astraspida
Taxonomy
Astraspida was named by Berg (1940).
It was reranked as the subclass Astraspida by Long (2011), Nelson et al. (2016) and Van Der Laan (2019).
It was assigned to Pteraspidomorphi by Long (2011); and to Pteraspidomorpha by Nelson et al. (2016) and Van Der Laan (2019).
It was reranked as the subclass Astraspida by Long (2011), Nelson et al. (2016) and Van Der Laan (2019).
It was assigned to Pteraspidomorphi by Long (2011); and to Pteraspidomorpha by Nelson et al. (2016) and Van Der Laan (2019).
Subtaxa
Synonymy list
Year | Name and author |
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2011 | Astraspida Long p. 241 |
2016 | Astraspida Nelson et al. p. 27 |
2019 | Astraspida Van Der Laan p. 15 |
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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.
Subcl. †Astraspida Berg 1940
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Or. †Astrapidiformes Berg 1940
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Or. †Astraspidiformes Berg 1940
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Fm. †Tesakoviaspididae Karatajute-Talimaa and Smith 2004
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G. †Tesakoviaspis Karatajute-Talimaa and Meredith Smith 2004
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†Tesakoviaspis concentrica Karatajute-Talimaa and Meredith Smith 2004
Diagnosis
No diagnoses are available