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Macginitiea is an extinct genus in the family Platanaceae ranging from the Late Paleocene to Late Eocene of North America, known from the Clarno Formation of central Oregon. The genus is strictly used to describe leaves, but has been found in close association with other fossil platanoid organs, which collectively have been used for whole plant reconstructions. Macginitiea and its associated organs are important as together they comprise one of the most well-documented and ubiquitous fossil plants, particularly in the Paleogene of North America.

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  • Macginitiea (en)
rdfs:comment
  • Macginitiea is an extinct genus in the family Platanaceae ranging from the Late Paleocene to Late Eocene of North America, known from the Clarno Formation of central Oregon. The genus is strictly used to describe leaves, but has been found in close association with other fossil platanoid organs, which collectively have been used for whole plant reconstructions. Macginitiea and its associated organs are important as together they comprise one of the most well-documented and ubiquitous fossil plants, particularly in the Paleogene of North America. (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Macginitiea_gracilis_SRIC_SR_01-03-04_A_img1.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Clarno-Nut-Beds-Mural-Large.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Leaf_morphology_-_venation_Hickey_1973_-_palinactinodromous.svg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Clarno-Mural-Outline.jpg
  • http://commons.wikimedia.org/wiki/Special:FilePath/Platanoxylon-haydenii_NPSimagefromJohnDayNutbeds.jpg
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  • Wolfe & Wehr (en)
image caption
  • Macginitiea gracilis (en)
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  • *See text (en)
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  • Species (en)
taxon
  • Macginitiea (en)
type species
  • Macginitiea gracilis (en)
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  • Macginitiea is an extinct genus in the family Platanaceae ranging from the Late Paleocene to Late Eocene of North America, known from the Clarno Formation of central Oregon. The genus is strictly used to describe leaves, but has been found in close association with other fossil platanoid organs, which collectively have been used for whole plant reconstructions. Macginitiea and its associated organs are important as together they comprise one of the most well-documented and ubiquitous fossil plants, particularly in the Paleogene of North America. Because paleobotanical material is often found in disarticulation, different species names are often used to refer to different organs (e.g. leaves, fruits, wood) even if those organs might have belonged to the same plant. When these organ species are considered together as a whole plant, the study is known as a whole plant reconstruction. Some localities have enough co-occurrences of different fossil plant organs that whole plant reconstructions are possible, one example being the Cercidiphyllum-like Joffrea from the Joffre Bridge locality of Alberta, Canada. The earliest definite occurrences of Macginitiea have been observed from the Comstock Flora of southern Willamette Valley, Oregon, which has been dated to be younger than 38-40 million years old (Bartonian), though similar ages are observed throughout the Pacific Northwest, with occurrences around 38-39 Ma. (en)
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