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Orthoretiolites

Pterobranchia - Bireclinata - Lasiograptidae

Taxonomy
Orthoretiolites was named by Whittington (1954) [Sepkoski's age data: O Cara-u O Ashg-l Sepkoski's reference number: 722]. Its type is Orthoretiolites hami.

It was assigned to Diplograptidae by Whittington (1954); to Graptoloidea by Sepkoski (2002); and to Lasiograptidae by Maletz (2014).

Synonymy list
YearName and author
1954Orthoretiolites Whittington pp. 613 - 614
2002Orthoretiolites Sepkoski, Jr.
2014Orthoretiolites Maletz p. 512

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumHemichordataBateson 1885
classPterobranchiaLankester 1877
classGraptolithina(Bronn 1849)
Graptoloida
RankNameAuthor
Eugraptoloida
Reclinata
superorderPanbireclinata
orderBireclinata
infraorderAxonophora(Frech 1897)
suborderDiplograptina(Lapworth 1880)
familyLasiograptidaeLapworth 1879
genusOrthoretiolites

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
H. B. Whittington 1954Sicula, initial bud and proxi- mal part of th 11, th 21 and th 12 with continuous periderm, remainder of rhabdosome represented by clathria only, rectangular in cross section. Virgula forms central longitudinal strand of lattice on obverse side. Thecae of orthograptid type with straight ventral wall, alternating, overlapping about one-fifth of their length. Development of non-septate diplograptid.