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Metabolograptus persculptus

Pterobranchia - Bireclinata

Taxonomy
Diplograptus (Glyptograptus) persculptus was named by Elles and Wood (1907) [Lectotype designated by Williams 1983 from Salter's collection: Ogofau, Pumpsaint, Dyfed, Wales; figured Williams 1983, plate 66, figure 3.]. It is not extant. Its type specimen is GSM 11782.

It was recombined as Glyptograptus persculptus by Davies (1929); it was recombined as Normalograptus persculptus by Storch and Loydell (1996); it was recombined as Metabolograptus persculptus by Storch and Schönlaub (2012).

Synonyms
Synonymy list
YearName and author
1907Diplograptus (Glyptograptus) persculptus Elles and Wood p. 257 figs. pI. 31, fig. 7a-c; text fig. 176a-b
1929Glyptograptus persculptus Davies pp. 10-11 figs. text-fig. 11A, text-figs 11, 13, 16-19 (non 12, 14)
1955Glyptograptus bohemicus Marek p. 7 figs. pI. 1, figs 1-4
1996Normalograptus persculptus Storch and Loydell pp. 872 - 875 figs. Text-figures 3-5
2012Metabolograptus persculptus Storch and Schönlaub pp. 759 - 760 figs. 5C, D, ?A, B

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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)
infraorderNeograptinaStorch et al. 2011
superfamilyRetiolitoideaLapworth 1873
genusMetabolograptusObut and Sennikov 1985
speciespersculptus(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
P. Storch and D. Loydell 1996Rhabdosome straight, widening from 1·0 mm (0·8 mm in relief) to a maximum of 2·0-2·5 mm at a distance of 10-15 mm from the proximal end; median septum complete in early populations, slightly wavy in specimens preserved in relief. Successive delay in the insertion of the median septum appears in stratigraphically late populations. Alternate to subalternate sigmoidally curved thecae of glyptograptid appearance become strongly geniculate in flattened rhabdosomes; thecae overlap for half of their length and number 5-6 in the proximal 5 mm and 8-10 in 10 mm distally.