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Volume 37, issue 1 | Copyright
J. Micropalaeontol., 37, 21-24, 2018
https://doi.org/10.5194/jm-37-21-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 05 Jan 2018

Research article | 05 Jan 2018

Reconstruction of the multielement apparatus of Neogondolella ex gr. regalis Mosher, 1970 (Conodonta) from the Anisian (Middle Triassic) in British Columbia, Canada

Martyn Lee Golding Martyn Lee Golding
  • Geological Survey of Canada, 1500-605 Robson Street, Vancouver, British Columbia V6B 5J3, Canada

Abstract. The multi-element apparatus of the Middle Triassic conodont Neogondolella ex gr. regalis has been reconstructed based on material collected from the upper Anisian in British Columbia, Canada. The apparatus of this species group is distinguished by the presence of a segminiplanate P1 element with a high, fused carina, and an alate S0 element with anterior processes that bifurcate at the cusp. This S0 element morphology is unlike those of other species from the upper Anisian of North America, but similar to those from the Lower Triassic. The new reconstruction demonstrates that Neogondolella ex gr. regalis does not belong to the genus Neogondolella, nor to any other Triassic gondolellid genus. It is therefore proposed that Neogondolella ex gr. regalis should be referred to a new genus.

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The conodont Neogondolella regalis is an unusual species for its genus. This paper reconstructs the complete feeding apparatus of this organism based on specimens collected from British Columbia, Canada. This new reconstruction of the complete apparatus demonstrates that this species is different from others belonging to the genus Neogondolella and suggests that a new genus should be created. This has implications for dating and correlating rocks from the Pacific Cordillera (Canada).
The conodont Neogondolella regalis is an unusual species for its genus. This paper reconstructs...
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