Pristiograptus dubius shearsbyi Rickards and Wright, 1999

Urbanek, Adam, Radzevičius, Sigitas, Kozłowska, Anna & Teller, Lech, 2012, Phyletic evolution and iterative speciation in the persistent Pristiograptus dubius lineage, Acta Palaeontologica Polonica 57 (3), pp. 589-611 : 608

publication ID

https://doi.org/ 10.4202/app.2010.0070

persistent identifier

https://treatment.plazi.org/id/892C87DF-9235-FFEA-FCC9-30A8FA4CE4C9

treatment provided by

Felipe

scientific name

Pristiograptus dubius shearsbyi Rickards and Wright, 1999
status

 

Pristiograptus dubius shearsbyi Rickards and Wright, 1999

Fig. 11D, E, I, K.

1999 Pristiograptus dubius shearsbyi sp. nov.; Rickards and Wright 1999: 194, figs. 3J–P, 11A, B, 13B, E.

Material.—10 rhabdosomes, Mielnik−1 borehole (688.8 m), Poland.

Description.—The rhabdosome is narrow and proximally is either slightly curved ventrally or straight. The ss angle is obtuse. The thecal lips are distinct, not extending onto the free ventral wall of the succeeding thecae. The λ angle is 25°. The sicula L is 2 mm and W is 0.3 mm. The sicula has three rings.

Stratigraphic and geographic range.— M. (U.) spineus Neocolonograptus parultimus Interzone , Australia and Poland.

Kingdom

Animalia

Phylum

Hemichordata

Class

Graptolithina

Order

Graptoloidea

Family

Rhabdinoporidae

Genus

Pristiograptus

Loc

Pristiograptus dubius shearsbyi Rickards and Wright, 1999

Urbanek, Adam, Radzevičius, Sigitas, Kozłowska, Anna & Teller, Lech 2012
2012
Loc

Pristiograptus dubius shearsbyi

Rickards, R. B. & Wright, A. J. 1999: 194
1999
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