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Porophoraspis
Taxonomy
Porophoraspis was named by Ritchie and Gilbert-Tomlinson (1977) [Sepkoski's age data: O Llvi-l Sepkoski's reference number: 746]. Its type is Porophoraspis crenulata.
It was assigned to Heterostraci by Ritchie and Gilbert-Tomlinson (1977); to Arandaspididae by Young (1997); to Pteraspidomorphes by Sepkoski (2002); and to Porophoraspidae by Van Der Laan (2019).
It was assigned to Heterostraci by Ritchie and Gilbert-Tomlinson (1977); to Arandaspididae by Young (1997); to Pteraspidomorphes by Sepkoski (2002); and to Porophoraspidae by Van Der Laan (2019).
Species
P. crenulata (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1977 | Porophoraspis Ritchie and Gilbert-Tomlinson p. 367 |
| 1997 | Porophoraspis Young p. 6 |
| 2002 | Porophoraspis Sepkoski |
| 2019 | Porophoraspis Van Der Laan 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.
G. †Porophoraspis Ritchie and Gilbert-Tomlinson 1977
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†Porophoraspis crenulata Ritchie and Gilbert-Tomlinson 1977
Diagnosis
No diagnoses are available