Pristiograptus dubius welchae Rickards, 1965
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https://doi.org/ 10.4202/app.2010.0070 |
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persistent identifier |
https://treatment.plazi.org/id/892C87DF-9235-FFEA-FF90-329BFF40E355 |
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Felipe |
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scientific name |
Pristiograptus dubius welchae Rickards, 1965 |
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Pristiograptus dubius welchae Rickards, 1965
Figs. 5P, 6Q, 12G–K.
1965 Pristiograptus welchae sp. nov.; Rickards 1965: 261, pl. 30: 6; text−fig. 2f.
Material.—About 20 rhabdosomes and rhabdosomes fragments from Mielnik−1 borehole (836.6 m), Poland.
Description.—The rhabdosome is very small, up to 5 mm long, narrow 0.7–1.2 mm, and slightly curved to the ventral side, sometimes straight. The ss angle is obtuse or right. The thecal lip is distinct, ending at the beginning of the free ventral wall of succeeding theca. The sicula has three rings.
Remark.—The P. dubius welchae is very similar to the Wenlock species P. dubius parvus , although P. dubius parvus does not have sicular rings.
Stratigraphic and geographic range.— Saetograptus leintwardinensis – Neocucullograptus kozlowskii Biozone , Poland; Neodiversograptus nilssoni – Lobograptus scanicus and S. leintwardinensis biozones of North England ( Rickards 1965).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Pristiograptus dubius welchae Rickards, 1965
| Urbanek, Adam, Radzevičius, Sigitas, Kozłowska, Anna & Teller, Lech 2012 |
Pristiograptus welchae
| Rickards, R. B. 1965: 261 |