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Orthograptus pageanus

Pterobranchia - Diplograptoidea - Diplograptidae

Taxonomy
Diplograptus (Orthograptus) pageanus was named by Elles and Wood (1907) [Lectotype BU 1222]. Its type specimen is BU 1222 and is a compression fossil.

It was recombined as Orthograptus pageanus by Goldman (1995).

Synonymy list
YearName and author
1907Diplograptus (Orthograptus) pageanus Elles and Wood pp. 225- 226 figs. PI. 28, fig. 3a-3c, text-fig. 147
1995Orthograptus pageanus Goldman pp. 519 - 524 figs. 5.1-5.15, 6.1-6.6, 7.1-7.3, 7.5

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumHemichordataBateson 1885
classPterobranchiaLankester 1877
RankNameAuthor
classGraptolithina(Bronn 1849)
orderDiplograptoidea()
familyDiplograptidae
subfamilyOrthograptinae
genusOrthograptusLapworth 1873
speciespageanus(Elles and Wood 1907)

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
D. Goldman 1995Orthograptus with long single apertural spines on the first two or rarely first four thecae; much shorter paired apertural spines on subsequent thecae; rhabdosome widens rapidly from a relatively narrow proximal end.