Where: Colorado (38.9° N, 105.3° W: paleocoordinates 40.4° N, 96.9° W)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Chadronian (37.2 - 33.9 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: lacustrine; tuffaceous, volcaniclastic siliciclastic sediments
Size class: macrofossils
Preservation: mold/impression, original carbon
Collection methods: quarrying,
Primary reference: H. D. MacGinitie. 1953. Fossil Plants of the Florissant Beds of Colorado. Carnegie Inst. of Washington, Contributions to Paleontology Publ. 599:1-198 [C. Labandeira/C. Labandeira/M. Kosnik]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 24209: authorized by Hallie Sims, entered by Heather Lindon on 02.08.2002, edited by Monica Arakaki, Bruce Tiffney and Jocelyn Sessa
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Plagiopodiopsis scudderi, Plagiopodiopsis cockerelliae, Conzattia coriacea n. sp., Thouinia straciata, Pellea antiquella, Apocymospermum sp.1, Diplodipelta reniptera n. gen.2
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Hexactinellida | |
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Orontium | |
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Polypodiopsida | |
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Ginkgoopsida | |
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Antholithes | |
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Musci | |
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Jungermanniopsis cockerellii | |
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Carpites | |
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Pinopsida | |
Pinus florissanti, Pinus wheeleri, Pinus hambachi, Abies longirostris, Picea lahontense, Picea magna n. sp.
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Angiospermae | |
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Platanus florissanti n. sp.
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Eucommia sp.1 Oliver 1890 | |
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Ribes errans n. sp.
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Cyperacites lacustris n. sp.
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Dicotyledoneae | |
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Angiospermae | |
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Potamogeton geniculatus1 Braun 1845 pondweed Al. Br. Rejected by MacGinitie because of missing specimens, but now reinstated based on new material
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Koelreuteria alleni, Athyana haydenii, Dipteronia insignis, Dipteronia brownii1, Acer oregonianum, Acer florissanti, Acer macginitiei1, Cardiospermum terminalis, Dodonaea umbrina, Sapindus coloradensis
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Ptelea sp.1 Linnaeus 1753 hoptree Ptelea-like fruits these are distinct from the Diplodipelta fruits that MacGinitie had attributed to Ptelea. They wre described as Brachyruscus alleni and considered to be Liliaceous by Cockerell
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Rhus lesquereuxi, Rhus obscura, Rhus stellariaefolia, Astronium truncatum, Cotinus fraterna, Schmaltzia vexans
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Populus pyrifolia, Populus crassa, Populites heeri, Salix coloradica n. sp., Salix ramaleyi, Salix libbeyi
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Phaseolites dedal n. sp.
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Rosaceae indet.1, Vauquelinia coloradensis, Rubus coloradensis1, Rosa hilliae, Prunus gracilis, Cercocarpus myricaefolius
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Malus florissantensis, Malus pseudocredneria, Crataegus copeana, Crataegus hendersoni, Crataegus nupta, Crataegus sp., Amelanchier scudderi
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Quercus dumosoides, Quercus orbata, Quercus perdayana n. sp., Quercus schottii, Quercus mohavensis, Quercus peritula, Quercus balaninorum, Quercus scudderi, Quercus knowltoniana, Quercus lyratiformis, Castanea dolichophylla, Fagopsis longifolia
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Chaneya tenuis | |
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Deviacer | |
Deviacer sp.1 Manchester 1994 |