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Peiragraptinae

Pterobranchia - Diplograptoidea - Diplograptidae

Taxonomy
Peiragraptinae was named by Jaanusson (1960). It is not extant.

It was assigned to Orthograptidae by Mitchell (1987).

Synonymy list
YearName and author
1960Peiragraptinae Jaanusson
1987Peiragraptinae Mitchell p. 381

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumHemichordataBateson 1885
RankNameAuthor
classPterobranchiaLankester 1877
classGraptolithina(Bronn 1849)
orderDiplograptoidea()
familyDiplograptidae
subfamilyPeiragraptinaeJaanusson 1960
subfamilyPeiragraptinaeJaanusson 1960

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.

Diagnosis
ReferenceDiagnosis
C. E. Mitchell 1987Orthograptids with Pattern G or Pattern F primordial astogeny; strongly geniculate
thecae bearing genicular spines or flanges or both; rhabdosome generally aseptate and with fully sclerotized periderm.