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Pseudoretiolites

Pterobranchia - Bireclinata - Retiolitidae

Taxonomy
Pseudoretiolites is a genus. It is not extant.

It was assigned to Retiolitinae by Lenz and Melchin (1987); and to Graptoloidea by Sepkoski (2002).

Synonymy list
YearName and author
1987Pseudoretiolites Lenz and Melchin p. 163
2002Pseudoretiolites Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumHemichordataBateson 1885
classPterobranchiaLankester 1877
classGraptolithina(Bronn 1849)
Graptoloida
Eugraptoloida
RankNameAuthor
Reclinata
superorderPanbireclinata
orderBireclinata
infraorderAxonophora(Frech 1897)
infraorderNeograptinaStorch et al. 2011
superfamilyRetiolitoideaLapworth 1873
familyRetiolitidaeLapworth 1873
subfamilyRetiolitinaeLapworth 1873
genusPseudoretiolites

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
A. C. Lenz and M. J. Melchin 1987Prosicula characteristically present (pi. 1, fig. 7); metasicula rarely preserved (pi. 1, fig! 3). Corona developed from fourpronged ancora, hemispherical and basket-like, formed of 3-4 rows of gently spiralled lists joined to longitudinally arrayed lists (pi. 1, fig. 5). In specimens with metasicula, "struts" anchor sicula to reticula. First theca develops from clathrial list arising from mouth of sicula; second theca formed from clathrial bar emerging near top of sicula; remaining thecae developing in manner similar to that of Pseudoplegmatograptus. 'Floor' of theca marked by long median list arising from aboral list of previous theca and connected to lip of theca. Lip of theca formed of fine, laterally elongate meshes, divided medially by a zig-zag list. Thecae distinctly orthograptid in profile, with moderately accentuated lips and curved, anterolaterally directed apertures. Reticulum moderately fine, meshwork polygonal, with meshes of more or leass uniform size. Median region of both sides of rhabdosome generally bear large, irregularly shaped, thinwalled stomata, the margins of which stand above the adjacent reticula. Stomata at least twice the size of reticulum mesh-size.