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Cedrelospermum
Extinct species of flowering plant From Wikipedia, the free encyclopedia
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Cedrelospermum is an extinct genus of plants in the family Ulmaceae.[1] Its fossils have been found in the early Eocene to early Oligocene strata in North America, in the middle Eocene to middle Miocene strata in Europe , and in the middle Eocene of Bangor in Tibet, the late Eocene of Nyima, the late Oligocene of Shuanghu, and the late Eocene of Maguan in Yunnan in Asia.[1][2][3]
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The fruits of the genus Cedrelospermum are oval to triangular, with a membranous wing on one side.[4][5] Some species have only one wing; others have two separate wings, a primary wing and a secondary wing.[5][6]
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Species
The following Cedrelospermum species have been described:[1]
- †Cedrelospermum aquense Saporta, 1889
- †Cedrelospermum asiaticum Jia et al., 2015
- †Cedrelospermum leptospermum Manchester, 1987
- †Cedrelospermum lineatum (Lesq.) Manchester, 1987
- †Cedrelospermum manchesteri Magall.-Puebla, Cev.-Ferriz, 1994
- †Cedrelospermum nervosum Newberry, 1883
- †Cedrelospermum stiriacum (Ettingsh.) Kovar-Eder, Z. Kvaček, 2004
- †Cedrelospermum tibeticum LB Jia, T. Su & ZK Zhou, 2019[4]
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References
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