Where: Alberta, Canada (51.5° N, 112.8° W: paleocoordinates 59.2° N, 78.7° W)
• coordinate based on nearby landmark
When: Horsehoe Canyon Formation, Late/Upper Campanian to Late/Upper Campanian (83.5 - 66.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: delta plain; calcareous, cherty/siliceous mudstone
Size classes: mesofossils, microfossils
Preservation: concretion
Collection methods: bulk,
Primary reference: K. R. Aulenback and B.A. LePage. 1998. Taxodium wallisii sp. nov.: First occurence of Taxodium from the Upper Cretaceous. International Journal of Plant Sciences 159(2):367-390 [B. Tiffney/J. Fosdick/J. Fosdick]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 34894: authorized by Bruce Tiffney, entered by Julia Fosdick on 10.10.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Polypodiopsida | |
Marsilea sp. Linnaeus 1753 water clover | |
Microlepia sp. Presl 1836 | |
Azolla sp. Lamarck 1783 | |
Anemia sp. Swartz 1806 | |
Blechnum sp. Linnaeus 1753 | |
Cycadopsida | |
"Nilssonia sp." = Nilsonia
"Nilssonia sp." = Nilsonia Brongniart 1825 cycads | |
Angiospermae | |
Ceratophyllum sp. Linnaeus 1753 hornwort | |
"Carpites verrucosus" = Porosia verrucosa
"Carpites verrucosus" = Porosia verrucosa Lesquereux 1878 | |
Cyperus sp. Linnaeus 1753 sedge | |
Cryptomeria sp., Taxodium wallisii n. sp., Cunninghamia sp., Drumhellera kurmanniae, Mesocyparis umbonata, Sequoiadendron sp.
Cryptomeria sp. Don cypress
Taxodium wallisii n. sp. cypress
Cunninghamia sp. Brown cypress
Drumhellera kurmanniae Serbet and Stockey 1991 cypress
Mesocyparis umbonata cypress
Sequoiadendron sp. Buchholz cypress | |
Pinopsida | |
Abies sp. Miller 1754 fir | |
Torreya sp. Arnott 1838 yew | |
Magnoliopsida | |
"Trapago angulata" = Quereuxia
"Trapago angulata" = Quereuxia |