Title | Magnigondolella, a new conodont genus from the Triassic of North America |
| |
Author | Golding, M L; Orchard, M J |
Source | Journal of Paleontology vol. 92, issue 2, 2018 p. 207-220, https://doi.org/10.1017/jpa.2017.123 |
Image |  |
Year | 2018 |
Alt Series | Natural Resources Canada, Contribution Series 20170070 |
Publisher | Cambridge University Press (CUP) |
Document | serial |
Lang. | English |
Media | paper; on-line; digital |
File format | pdf; html |
Province | British Columbia |
NTS | 93I; 93J; 93K; 93N; 93O; 93P; 94A; 94B; 94C; 94F; 94G; 94H; 94I; 94J; 94K; 94N; 94O; 94P |
Area | Liard River; Toad River; Dawson Creek; Nevada; Clan Alpine Mountains; Augusta Mountains; Humboldt Range; Canada; United States of America |
Lat/Long WENS | -126.0000 -120.0000 60.0000 54.0000 |
Lat/Long WENS | -119.0000 -117.0000 41.5000 39.5000 |
Subjects | paleontology; stratigraphy; Middle Triassic; systematic paleontology; holotypes; microfossils; conodonts; taxonomy; nomenclature; fossil descriptions; fossil morphology; fossil distribution;
biostratigraphy; Magnigondolella; Toad Formation; Prida Formation; Favret Formation; Fossil Hill Member; Phanerozoic; Mesozoic; Triassic |
Illustrations | biostratigraphic charts; location maps; tables; photomicrographs |
Program | GEM2: Geo-mapping for Energy and Minerals Western Cordillera, Cache Creek Terrane |
Released | 2018 03 01 |
Abstract | The new conodont genus Magnigondolella is recognized based on specimens recovered from the Anisian (Middle Triassic) of British Columbia in Canada, and Nevada in the USA. This new genus encompasses
problematic specimens with high carinas, which have recently been collectively referred to as Neogondolella ex gr. regalis Mosher. Ten species from North America are herein assigned to Magnigondolella n. gen., including the eight new species M.
alexanderi, M. cyri, M. julii, M. nebuchadnezzari, M. salomae, M. n. sp. A, M. n. sp. B, and M. n. sp. C, as well as the two existing species M. regalis (Mosher) and M. dilacerata (Golding and Orchard). Other species from the Tethys region are also
tentatively assigned to Magnigondolella n. gen. Based on published records, the genus appears to range from the Spathian to the upper Anisian in North America. The recognition of eight new species from the Anisian significantly increases the conodont
biodiversity of this period, which has previously been regarded as a time of low diversity. Although some of the species included within Magnigondolella n. sp. have relatively long stratigraphic ranges, many have been identified in both British
Columbia and Nevada, and therefore show potential for biostratigraphic correlation on a regional scale. |
Summary | (Plain Language Summary, not published) This paper introduces a new genus and several new species of conodonts to encompass forms from the Middle Triassic whose classification has previously
been problematic. The new classification will make the conodonts more useful for correlating between sections during this time period. Because the new species can be recognized in samples from Canada and the USA, it shows that they are of regional
utility. Furthermore, the recognition of new species demonstrates that the conodont biodiversity of the Middle Triassic is greater than has been previously assumed. |
GEOSCAN ID | 300852 |
|
|