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Diplograptidae

Pterobranchia - Diplograptoidea - Diplograptidae

Synonyms
Synonymy list
YearName and author
1970Diplograptidae Bulman
1987Orthograptidae Mitchell pp. 377 - 380
2007Diplograptidae Mitchell et al.
2008Diplograptidae Kiessling
2011Diplograptidae Storch et al.

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

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 1987 (Orthograptidae)Diplograptaceans with Pattern A astogeny or the derived Patterns G or F; sicular aperture simple or with antivirgellar spines; thecae sigmoidal primitively but becoming orthograptid or amplexograptid among forms with fully sclerotized periderm, and lasiograptid to retiolitid among others; generally with cuspate apertures or with paired apertural spines.