A review of paleobotanical studies of the Early Eocene Okanagan (Okanogan) Highlands floras of British Columbia, Canada, and Washington, USA

Greenwood, David R.; Pigg, Kathleen B.; Basinger, James F.; DeVore, Melanie L.

doi:10.1139/cjes-2015-0177

Cited by 27 publications

(39 citation statements)

References 144 publications

(279 reference statements)

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“…1C) are the only conifers known from the Princeton chert, given the abundance of conifers in the compression floras of the Okanagan Highlands (Schorn and Wehr 1996;Greenwood et al 2016). …”

Section: Pinalesmentioning

confidence: 99%

“…Within the Okanagan Highlands, the major lacustrine leaf compression floras are at Republic, Washington; and Princeton (Thomas Ranch and One Mile Creek), Quilchena, McAbee, Falklands, Horsefly, and Driftwood Creek, British Columbia (Greenwood et al 2016). When comparing the Princeton chert flora with these relatively coeval compression floras, several factors are immediately apparent (Table 1).…”

Section: Comparison With Okanagan Compression Florasmentioning

confidence: 99%

“…The Princeton chert occurs within the Allenby Formation, in a region well known for mining of gold, platinum, copper, and coal prior to European settlement and especially since the 1850s (Greenwood et al 2016;Town of Princeton 2016). The earliest study of the chert was a pollen analysis by Boneham (1968) in work included in his Ph.D. dissertation on Tertiary (Paleogene) coal basins of southern central British Columbia, Canada, directed by Chester A. Arnold at the University of Michigan.…”

Section: Introductionmentioning

confidence: 99%

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A review of the plants of the Princeton chert (Eocene, British Columbia, Canada)

Pigg

DeVore

2016

Botany

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Abstract:The Princeton chert is one of the most completely studied permineralized floras of the Paleogene. Remains of over 30 plant taxa have been described in detail, along with a diverse assemblage of fungi that document a variety of ecological interactions with plants. As a flora of the Okanagan Highlands, the Princeton chert plants are an assemblage of higher elevation taxa of the latest early to earliest middle Eocene, with some components similar to those in the related compression floras. However, like the well-known floras of Clarno, Appian Way, the London Clay, and Messel, the Princeton chert provides an additional dimension of internal structure. In the present study, we outline the history of Princeton chert plant research, starting with Boneham and others, and extending into studies by Stockey and her students and colleagues. These studies were undertaken primarily at the University of Alberta, Edmonton. We then re-examine the individual elements of the Princeton chert flora, using the framework of the currently recognized Angiosperm Phylogeny Group (APG III) phylogeny and in light of recent fossil discoveries. We hope that this update will bring to mind new aspects of the significance of the Princeton chert flora to Paleogene paleobiology, biogeography, and plant evolution.

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“…1C) are the only conifers known from the Princeton chert, given the abundance of conifers in the compression floras of the Okanagan Highlands (Schorn and Wehr 1996;Greenwood et al 2016). …”

Section: Pinalesmentioning

confidence: 99%

Section: Comparison With Okanagan Compression Florasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A review of the plants of the Princeton chert (Eocene, British Columbia, Canada)

Pigg

DeVore

2016

Botany

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“…The purpose of the session at GSA in 2014, and this special issue of the Canadian Journal of Earth Sciences, was to bring together paleontologists and geologists with a shared interest in the character of Eocene environments, and the organisms that inhabited the Eocene landscapes of western North America. Fourteen presenters and their coauthors gave talks in this session, including speakers from Canada and the United States, filling a large presentation room in the Vancouver Convention Centre overlooking Burrard Inlet, the site of historically important Eocene plant fossil sites (Dawson 1895;Greenwood et al 2016). The GSA 2014 symposium, and also this special issue, were seen as the successors of a similar session held in Vancouver as part of the annual meeting of the Geological Association of Canada in May 2003, which was published in a special issue of the Canadian Journal of Earth Sciences in 2005 .…”

Section: Symposium Topicsmentioning

confidence: 99%

“…Many of the fossil-rich Eocene lacustrine shale and coal deposits of British Columbia and adjoining areas of the United States (Fig. 1) are the result of Eocene extensional faulting, forming grabens and half grabens within which lakes and swamps formed, including the significant coalrich sedimentary Princeton and Tullameen basins (Read 2000;Greenwood et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Eocene paleontology and geology of western North America

2016

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Western North America preserves a rich record of Eocene life and environments under globally warm climates, and represents an interval where significant coal and other minerals were deposited. The Eocene is of interest to biologists and paleontologists for its record of the appearance and rise to dominance of many plant, insect, and mammal groups now typical of the temperate forests of North America, admixed with groups now well represented in tropical areas or restricted to eastern Asia. This record is also of interest for its potential contribution to our understanding of interactions between climate, the biota, and the ecosystems they occupied, under atmospheric carbon dioxide levels much higher than today. Documentation of the Eocene in western North America offers insights into the effects of future greenhouse climates. A special symposium held at the 2014 Annual Meeting of the Geological Society of America in Vancouver, British Columbia, brought together geologists, paleontologists, and biologists with an interest in these questions. This paper introduces the special issue that includes a selection of papers drawn from that symposium as well as on related topics, spanning the Early to Late Eocene, and geographically from British Columbia to Colorado. Résumé :Un riche registre fossile de la vie et des milieux éocènes est préservé dans l'ouest de l'Amérique du Nord, qui représente un intervalle où d'importants gisements de charbon et d'autres minéraux ont été déposés dans des conditions climatiques planétaires chaudes. L'Éocène présente un intérêt pour les biologistes et les paléontologues en raison du registre qu'il conserve de l'apparition et de la montée en puissance de nombreux groupes de plantes, d'insectes et de mammifères aujourd'hui typiques des forêts tempérées de l'Amérique du Nord, coexistant avec des groupes aujourd'hui bien représentés dans les régions tropicales ou limités à l'est de l'Asie. Ce registre est aussi intéressant pour la contribution qu'il peut apporter à la compréhension des interactions entre le climat, les organismes vivants et les écosystèmes occupés par ces derniers dans des conditions de concentrations atmosphériques de dioxyde de carbone beaucoup plus élevées que les concentrations actuelles. La documentation de l'Éocène dans l'ouest de l'Amérique du Nord permet d'en apprendre davantage sur les effets de climats de serre futurs. Un symposium spécial qui s'est tenu au congrès annuel de 2014 de la Geological Society of America à Vancouver (ColombieBritannique) a réuni des géologues, paléontologues et biologistes intéressés par ces questions. L'article présente le numéro spécial qui comprend une sélection d'articles tirée de ce symposium, ainsi que des articles sur des sujets connexes, couvrant l'Éocène précoce à tardif et, sur le plan géographique, des régions allant de la Colombie-Britannique au Colorado. [Traduit par la Rédaction]

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Urticaceae leaves with stinging trichomes were already present in latest early Eocene Okanogan Highlands, British Columbia, Canada

DeVore¹,

Nyandwi

Eckardt

et al. 2020

American J of Botany

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The early Eocene Okanogan Highlands plant fossil sites in British Columbia, Canada and Washington, United States, contain a diverse assemblage of upland, warm temperate elements that provide a record of high-elevation floras including early members of several important families (Johnson, 1996; DeVore and Pigg, 2010; Greenwood et al., 2016). These floras, including One Mile Creek, Thomas Ranch, McAbee, Falkland, and Quilchena in British Columbia, Canada and in Republic, Washington occur in a series of lacustrine basins formed as down-dropped crustal blocks associated with volcanism. Although there is no exact modern analogue, we have suggested that the African Rift Valley and associated volcanic peaks are perhaps among the most appropriate, as a high-elevation, forested setting, populated with large herbivorous mammals and associated with volcanics (DeVore and Pigg, 2016). Well represented in the Okanogan Highlands floras are some of the oldest known fossils of Betulaceae, Rosaceae, Ulmaceae, and other families that today are predominately distributed in temperate regions of the northern hemisphere (Johnson, 1996). While studying

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A review of paleobotanical studies of the Early Eocene Okanagan (Okanogan) Highlands floras of British Columbia, Canada, and Washington, USA

Cited by 27 publications

References 144 publications

A review of the plants of the Princeton chert (Eocene, British Columbia, Canada)

A review of the plants of the Princeton chert (Eocene, British Columbia, Canada)

Eocene paleontology and geology of western North America

Urticaceae leaves with stinging trichomes were already present in latest early Eocene Okanogan Highlands, British Columbia, Canada

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