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Pseudisograptus hastatus

Pterobranchia -

Taxonomy
Isograptus hastatus was named by Harris (1933) [= Didymograptus manubriatus T. S. Hall (pars), T. S. Hall, Proc. Roy. Soc. Vict., vol. 27 (n.s.), 1914, p. 108, pl. 17, fig. 13, non fig. 12. D. manubriatus Keble and Benson, Trans. N.Z. Inst., vol. 59, 1929, p. 853, pl. 104, fig. 8. Didymograptus manubriatus T. S. Hall (pars), T. S. Hall, Proc. Roy. Soc. Vict., vol. 27 (n.s.), 1914, p. 108, pl. 17, fig. 13, non fig. 12. D. manubriatus Keble and Benson, Trans. N.Z. Inst., vol. 59, 1929, p. 853, pl. 104, fig. 8. Didymograptus manubriatus T. S. Hall (pars), T. S. Hall, Proc. Roy. Soc. Vict., vol. 27 (n.s.), 1914, p. 108, pl. 17, fig. 13, non fig. 12. D. manubriatus Keble and Benson, Trans. N.Z. Inst., vol. 59, 1929, p. 853, pl. 104, fig. 8. Didymograptus manubriatus T. S. Hall (pars), T. S. Hall, Proc. Roy. Soc. Vict., vol. 27 (n.s.), 1914, p. 108, pl. 17, fig. 13, non fig. 12. D. manubriatus Keble and Benson, Trans. N.Z. Inst., vol. 59, 1929, p. 853, pl. 104, fig. 8. Didymograptus manubriatus T. S. Hall (pars), T. S. Hall, Proc. Roy. Soc. Vict., vol. 27 (n.s.), 1914, p. 108, pl. 17, fig. 13, non fig. 12. D. manubriatus Keble and Benson, Trans. N.Z. Inst., vol. 59, 1929, p. 853, pl. 104, fig. 8. Didymograptus manubriatus T. S. Hall (pars), T. S. Hall, Proc. Roy. Soc. Vict., vol. 27 (n.s.), 1914, p. 108, pl. 17, fig. 13, non fig. 12. = Didymograptus manubriatus Keble and Benson 1929, Trans. N.Z. Inst., vol. 59]. It is not extant.

It was recombined as Pseudisograptus hastatus by Cooper (1979).

Sister species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1933Isograptus hastatus Harris p. 104 figs. 33, 34
1979Pseudisograptus hastatus Cooper

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RankNameAuthor
kingdomAnimalia()
Triploblastica
Nephrozoa
Deuterostomia
Ambulacraria
phylumHemichordataBateson 1885
RankNameAuthor
classPterobranchiaLankester 1877
classGraptolithina(Bronn 1849)
Graptoloida
genusPseudisograptus
specieshastatus(Harris 1933)

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
No diagnoses are available