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Azygograptus ellesi

Pterobranchia - Graptoloidea - Dichograptidae

Taxonomy
Azygograptus ellesi was named by Monsen (1937) [= 1898 Azygograptus suecicus Moberg; Elles p. 514, fig. 29. = 1902 Azygograptus suecicus Moberg; Elles and Wood p. 95, text-fig. 56; pi. 3, fig, 3 a-b. = 1937 Azygograptus cf. suecicus Moberg; Monsen, p. 204, pi. 5, figs 2 and 20. = 1973 Azygograptus suecicus Moberg; Boucek, p. 107, pi. 19, figs 1^4; text-fig. 33 a-g.]. Its type specimen is PMO K 0288 and is a 3D body fossil.

It was corrected as Azygograptus ellesae by Cooper and Lindholm (1990).

Synonymy list
YearName and author
1937Azygograptus ellesi Monsen p. 205 figs. pl. 5, figs 21, 28, ?30.
1990Azygograptus ellesae Cooper and Lindholm p. 517
1991Azygograptus ellesi Beckly and Maletz pp. 911 - 912 figs. Plate 1, figs 1 and 11; Text-fig. 20a-s

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Deuterostomia
Ambulacraria
phylumHemichordataBateson 1885
classPterobranchiaLankester 1877
RankNameAuthor
subclassGraptolithina(Bronn 1849)
orderGraptoloideaLapworth 1875
suborderDichograptinaLapworth 1873
familyDichograptidaeLapworth 1873
subfamilyDidymograpti
genusAzygograptusNicholson and Lapworth 1875
speciesellesiMonsen 1937

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.

Azygograptus ellesi Monsen 1937
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Diagnosis
ReferenceDiagnosis
A. J. Beckly and J. Maletz 1991Azygograptus with long sicula (1 -8-2-4 mm); origin of th 11 in distal half of sicula and adpressed growth of th 11 and sicula till close to similar aperture. Little overlap in proximal thecae.