Prioniodus adami Stouge & Bagnoli, 1988
publication ID |
https://doi.org/ 10.3853/j.0067-1975.61.2009.1520 |
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https://treatment.plazi.org/id/03EFCB66-6E42-553E-FCD5-FC1CFA9DF849 |
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Felipe (2021-08-21 23:02:14, last updated by Plazi 2023-11-04 07:06:42) |
scientific name |
Prioniodus adami Stouge & Bagnoli, 1988 |
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Prioniodus adami Stouge & Bagnoli, 1988
Fig. 6G–L View Fig
Prioniodus sp. nov. C McTavish, 1973: 47, pl. 3, figs 4–6,?11, 16, text-fig. 6f, g, i,?j, k.
Prioniodus adami Stouge & Bagnoli, 1988: 132 , 133, pl. 11, figs 5–13 (cum syn.);? Albanesi et al., 1998: 155, pl. 10, figs 1–3; Johnston & Barnes, 2000: 36, pl. 16, figs 9, 10, 13–16, 19; Pyle & Barnes, 2002: 110, pl. 26, figs 19–21.
Material. Four specimens from two samples ( Table 1).
Remarks. Based on a large collection from Bed 9 of the Cow Head Group of western Newfoundland, Stouge & Bagnoli (1988) established P. adami as having a septimembrate apparatus (pastinate Pa, and Pb, ramiform S and geniculate M elements), and also included in it the material from the Emanuel Formation that McTavish (1973), ascribed to Prioniodus sp. C except for the oistodiform element (his pl. 3, fig. 11, text-fig. 6j) which bears a short, adenticulate inner lateral process. Prioniodus adami is characterized by bearing small, closely-spaced denticles on the long posterior process of the S and P elements, as well as on the anterior and outer lateral processes of the P elements and the inner lateral process of the M element. The Pa element ( Fig. 6G, H View Fig ) from the Emanuel Formation is identical with those illustrated by McTavish (1973, pl. 3, figs 5,?16), but exhibits less closely spaced denticles on the processes in comparison with the holotype ( Stouge & Bagnoli, 1988, pl. 11, fig. 8). The M element from the Cow Head Group shows a long adenticulate outer lateral process and a long, denticulate inner lateral process with small, closely-spaced denticles, similar to those on the processes of the P and S elements, but no M element has been recovered from the samples of this study.
Albanesi, G. L., M. A. Hunicken & C. R. Barnes, 1998. Bioestratigrafia, biofacies y taxonomia de conodontes de las secuencias ordovicicas del Cerro Porterillo, Precordillera central de San Juan, R. Argentina. Actas de la Academia Nacional de Ciencias 12: 1 - 249.
McTavish, R. A., 1973. Prioniodontacean conodonts from the Emanuel Formation (Lower Ordovician) of Western Australia. Geologica et Palaeontologica 7: 27 - 58.
Stouge, S., & G. Bagnoli, 1988. Early Ordovician conodonts from Cow Head Peninsula, western Newfoundland. Palaeontographica Italica 75: 89 - 179.
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Prioniodus adami Stouge & Bagnoli, 1988
Zhen, Yong Yi & Nicoll, Robert S. 2009 |
Prioniodus adami
Albanesi, G 1998: 155 |
Stouge, S 1988: 132 |
Prioniodus
McTavish, R 1973: 47 |