Thomas Ranch locality (Eocene of Canada)

Also known as UWBM B3263 (upper level), UWBM B4294 (lower level)

Where: British Columbia, Canada (49.5° N, 120.6° W: paleocoordinates 54.1° N, 103.8° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Vermillion Bluffs shale Member (Allenby Formation), Ypresian (56.0 - 47.8 Ma)

• Two fossiliferous areas are listed as Burke Museum of Natural History and Culture, University of Washington localities UWBM B3263 (upper level) and UWBM B4294 (lower

•level), and correspond to mapped megafossil localities in the Allenby Formation for this area on geological maps for south and west of Princeton (Read 1987, 2000; Massey et al. 2010). The smaller, lower site occurs immediately above the Tulameen River with beds that are nearly horizontal, in contrast to the upper, larger site, approximately 50mhigher (UWBM B3263), which consists of a small anticline that was exposed during road construction.

Environment/lithology: lacustrine - small; lithified shale

• Fossils occur in a shaley tan to buff-colored matrix that can weather to produce a thin, paper shale-like matrix, whereas less weathered areas contain a thicker mudstone.

•Thomas Ranch (Mustoe locality P11) is indicated as clastic in composition. The shale of the upper locality (UWBM B3263) was deformed through intense folding such that complete examples of any of the larger leaves are extremely rare. Cuticle was not apparent on most specimens

Size classes: macrofossils, mesofossils, microfossils

Preservation: adpression

Primary reference: R. Dillhoff, T. Dillhoff, D. Greenwood, M. DeVore, and K. Pigg. 2013. The Eocene Thomas Ranch flora, Allenby Formation, Princeton, British Columbia, Canada. Botany 91(8):514-529 [K. Volkman/K. Volkman]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 227994: authorized by Karl Volkman, entered by Karl Volkman on 15.11.2022

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Betuloideae sp.
infloresence
cf. Joffrea speirsii
cf. Joffrea speirsii Crane & Stockey/Cercidiphyllum Sieb. & Zucc. leaves
Polypodiopsida
 Schizaeales - Polypodiidae
Anemia poolensis Chandler 1955
spores
 Salviniales - Polypodiidae
Azolla primaeva Arnold 1955
plants, megaspores
  - Osmundaceae
Osmunda sp. Linnaeus 1753
spores
Alisporites
  -
Alisporites sp. Daugherty 1941
Alisporites/Pityosporites sp. pollen
unclassified
  -
Bryophyta sp.
undetermined genus
 Coniferales - Podocarpaceae
Podocarpidites sp. Cookson 1947 podocarp
Podocarpidites/Cathaya pollen
 Coniferales - Cupressaceae
Chamaecyparis sp. Spach 1841 cypress
leafy twigs
Cunninghamia sp. Brown cypress
leafy twigs
Metasequoia occidentalis Newberry 1863 dawn redwood
leafy twigs, seed cones
Sequoia sp. Endlicher 1847 coast redwood
leafy twigs, seed cones
Pinopsida
 Pinales - Pinaceae
Pinus sp. Linnaeus 1753 pine
leaves, pollen cones, pollen
Pseudotsuga sp. Carrière 1867
cf. Larix Phillip Miller sp./Pseudotsuga Carrière sp pollen
Picea sp. Dietrich 1824 spruce
leafy twigs, seed cones?, pollen
cf. Larix sp. Miller 1768 larch
cf. Larix Phillip Miller sp./Pseudotsuga Carrière sp pollen
Cathaya sp. Chun and Kuang 1962
Podocarpidites/Cathaya pollen
Pityosporites sp. Seward 1914
Alisporites/Pityosporites sp. pollen
Pseudolarix sp. Gordon and Glendinning 1858
cone scales, pollen
Abies milleri fir
leafy twigs, cone scales
Abies sp. Miller 1754 fir
pollen
Tsuga sp. Carrière 1855
pollen
 Pinales - Taxaceae
Torreya ? sp. Arnott 1838 yew
Amentotaxus Pilg.? sp./Torreya Am.? sp. leaves
Amentotaxus ? sp. Pilger 1917 catkin-yew
Amentotaxus Pilg.? sp./Torreya Am.? sp. leaves
Angiospermae
 Malpighiales - Salicaceae
Salix sp. Linnaeus 1753 willow
pollen
 Fagales - Fagaceae
Castanea sp. Miller 1754 chestnut
pollen
Fagus sp. Linnaeus 1753 beech
leaves
cf. Quercus sp. Linnaeus 1753 oak
pollen
Fagopsis undulata Knowlton 1899
leaves
 Fagales - Myricaceae
Comptonia columbiana Dawson 1890
leaves
 Fagales - Betulaceae
Corylus sp. Linnaeus 1753 hazel
pollen
Betula sp. Linnaeus 1753 birch
leaves, pollen
Betula leopoldae Wolfe and Wehr 1987 birch
leaves
Carpinus sp. Linnaeus 1753 hornbeam
pollen
Alnus sp. Miller 1754 alder
pollen
Alnus parvifolia Berry 1926 alder
leaves
 Fagales - Juglandaceae
Carya sp. Nuttall 1818 hickory
pollen
Pterocarya sp. Kunth 1824 wingnut
pollen
 Rosales - Ulmaceae
Ulmus sp. Linnaeus 1753 elm
pollen
Ulmus okanaganensis Denk and Dillhoff 2005 elm
leaves
 Rosales - Elaeagnaceae
cf. Elaeagnus sp. Linnaeus 1753 oleaster
pollen
 Rosales - Rosaceae
cf. Rubus sp. Linnaeus 1753 bramble
leaves
Prunus sp. Linnaeus 1753 plum
leaves
cf. Prunus sp. Linnaeus 1753 plum
leaves
 Sapindales - Sapindaceae
Dipteronia browni soapberry
fruits
Acer sp. Linnaeus 1753 maple
fruits, pollen
Dicotyledoneae
 Ericales - Ericaceae
Ericaceae sp. Jussieu 1789 heather
pollen
Angiospermae
 Nymphaeales - Nymphaeaceae
Nuphar cf. carlquisti water lily
rhizome
 Proteales - Platanaceae
Macginitiea gracilis Wolfe and Wehr 1987
leaves
Macginicarpa sp. Manchester 1986
fruits
 Cornales - Nyssaceae
Tsukada davidiifolia Wolfe and Wehr 1987
leaves
 Saxifragales - Hamamelidaceae
Fothergilla dunthornei witch-hazel
leaves
 Saxifragales - Grossulariaceae
Ribes sp. Linnaeus 1753 currant
leaves
 Saxifragales - Cercidiphyllaceae
Cercidiphyllum sp. Siebold and Zuccarini 1846 katsura
cf. Joffrea speirsii Crane & Stockey/Cercidiphyllum Sieb. & Zucc. leaves
 Trochodendrales - Trochodendraceae
Zizyphoides sp. Seward and Conway 1935
leaves
 Buxales - Buxaceae
 Laurales - Lauraceae
Lauraceae sp. Jussieu 1789 laurel
leaves
Sassafras hesperia sassafras
leaves
 Mesangiosperms - Arecaceae
Lycopodiopsida
 Lycopodiales - Lycopodiaceae
Lycopodium sp. Linnaeus 1753 ground pine
spores
Ginkgoopsida
 Ginkgoales - Ginkgoaceae
Ginkgo dissecta ginkgo
leaves
Ginkgo biloba ginkgo
leaves
Ginkgo sp. Linnaeus 1771 ginkgo
pollen