Draft:Cedrelospermum
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| Cedrelospermum Temporal range:
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| Cedrelospermum nervosum | |
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| Genus: | †Cedrelospermum
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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]
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]
Species
[edit]The following species of fossils of the genus Cedrelospermum have been discovered:[1]
- †Cedrelospermum aquense Saporta, 1889
- † Cedrelospermum asiaticumJia et al., 2015
- †Cedrelospermum leptospermum Manchester, 1987
- †Cedrelospermum lineatum
- †Cedrelospermum manchesteri
- †Category:Cedrelospermum nervosum Newberry, 1883
- †Cedrelospermum stiriacum
(†Cedrelospermum tibeticum LB Jia, T. Su & ZK Zhou, 2019 [4]
References
[edit]- ^ a b c Jia, Linbo; Su, Tao; Li, Weicheng; Li, Shufeng; Huang, Yongjiang; Zhou, Zhekun (2022-11-20). "The floristic differentiation of Southwest China: Insights from Cedrelospermum and Ailanthus fossils". Biodiversity Science. 30 (11): 22348. doi:10.17520/biods.2022348.
{{cite journal}}: CS1 maint: article number as page number (link) - ^ Meyer, H.W. & Manchester, S.R. 1997. The Oligocene Bridge Creek flora of the John Day Formation, Oregon. University of California Publications in the Geological Sciences 141: 1–364. ISBN 978-0-520-09816-9.
- ^ "Cedrelospermum". Paleobotany + Palynology. Retrieved 2025-11-08.
- ^ a b Jia, Lin-Bo; Su, Tao; Huang, Yong-Jiang; Wu, Fei-Xiang; Deng, Tao; Zhou, Zhe-Kun (March 2019). "First fossil record of Cedrelospermum (Ulmaceae) from the Qinghai–Tibetan Plateau: Implications for morphological evolution and biogeography". Journal of Systematics and Evolution. 57 (2): 94–104. Bibcode:2019JSyEv..57...94J. doi:10.1111/jse.12435.
- ^ a b Jia, Lin-Bo; Manchester, Steven R.; Su, Tao; Xing, Yao-Wu; Chen, Wen-Yun; Huang, Yong-Jiang; Zhou, Zhe-Kun (September 2015). "First occurrence of Cedrelospermum (Ulmaceae) in Asia and its biogeographic implications". Journal of Plant Research. 128 (5): 747–761. Bibcode:2015JPlR..128..747J. doi:10.1007/s10265-015-0739-2. PMID 26141513.
- ^ Manchester, Steven R. (February 1989). "Attached Reproductive and Vegetative Remains of the Extinct American-European Genus Cedrelospermum (Ulmaceae) from the Early Tertiary of Utah and Colorado". American Journal of Botany. 76 (2): 256–276. doi:10.2307/2444668. JSTOR 2444668.