Fossil infructescence from southwestern China reveals Paleogene establishment of Cladrastis in Asia

Jia, Lin‐Bo; Huang, Jianguo; Su, Tao; Spicer, Robert A.; Zhang, Shitao; Li, Shufeng; Pan, Bo; Nam, Gi-Soo; Huang, Yong‐Jiang; Zhou, Zhe‐Kun

doi:10.1016/j.revpalbo.2021.104456

Cited by 9 publications

(2 citation statements)

References 36 publications

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“…Central Tibet, a valley surrounded by high northern and southern mountains (Ding et al ., 2014, 2022; Su et al ., 2019a, 2020; Spicer et al ., 2020, 2021; Xiong et al ., 2023), likely played an important role in the floristic exchange of the Northern Hemisphere during the Paleogene (late Eocene to early Oligocene) (Del Rio et al ., 2020; Li et al ., 2022; Liu et al ., 2022). This valley has yielded a succession of radiometrically diverse fossil flora that have shown biological connections to newly docked India, North America, and Europe as well as the first occurrence of several taxa that are now part of the EAEBLFs (Liu et al ., 2019; Tang et al ., 2019; Su et al ., 2019b, 2020; Del Rio et al ., 2020, 2022; Jia et al ., 2021, 2022; Chen et al ., 2022; Li et al ., 2022; Zhang et al ., 2022). Additionally, the Pan Gulf of Tonkin flora (Huang et al ., 2022), which may be an important source for the post‐Paleogene East Asian arid belt retreat, suggests that accumulation may have started from the late Eocene to early Oligocene.…”

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confidence: 99%

Meta‐analysis provides insights into the origin and evolution of East Asian evergreen broad‐leaved forests

Zhang,

Yang,

Liu

et al. 2024

New Phytologist

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Summary Evergreen broad‐leaved forests (EBLFs) are dominated by a monsoon climate and form a distinct biome in East Asia with notably high biodiversity. However, the origin and evolution of East Asian EBLFs (EAEBLFs) remain elusive despite the estimation of divergence times for various representative lineages. Using 72 selected generic‐level characteristic lineages, we constructed an integrated lineage accumulation rate (LAR) curve based on their crown ages. According to the crown‐based LAR, the EAEBLF origin was identified at least as the early Oligocene (c. 31.8 million years ago (Ma)). The accumulation rate of the characteristic genera peaked at 25.2 and 6.4 Ma, coinciding with the two intensification periods of the Asian monsoon at the Oligocene – Miocene and the Miocene – Pliocene boundaries, respectively. Moreover, the LAR was highly correlated with precipitation in the EAEBLF region and negatively to global temperature, as revealed through time‐lag cross‐correlation analyses. An early Oligocene origin is suggested for EAEBLFs, bridging the gap between paleobotanical and molecular dating studies and solving conflicts among previous estimates based on individual representative lineages. The strong correlation between the crown‐based LAR and the precipitation brought about by the Asian monsoon emphasizes its irreplaceable role in the origin and development of EAEBLFs.

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Section: Discussionmentioning

confidence: 99%

Meta‐analysis provides insights into the origin and evolution of East Asian evergreen broad‐leaved forests

Zhang,

Yang,

Liu

et al. 2024

New Phytologist

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“…Legumes also have an abundant and diverse fossil record, with numerous fossil flowers, fruits, and leaves documented from the Cenozoic of every continent except Antarctica (Herendeen, 1992 ; Herendeen and Dilcher, 1992 ; Herendeen et al, 1992 ). Temporal and biogeographic patterns in the fossil record of the family were summarized by Herendeen et al ( 1992 ), to which have been added more recent fossil reports from low paleolatitude localities, mainly in Africa and Central and South America (Herendeen and Jacobs, 2000 ; De Franceschi and De Ploëg, 2003 ; Jacobs and Herendeen, 2004 ; Calvillo‐Canadell and Cevallos‐Ferriz, 2005 ; Brea et al, 2008 ; Wing et al, 2009 ; Pan et al, 2010 , 2012 ; Collinson et al, 2012 ; Cantrill et al, 2013 ; Jia and Manchester, 2014 ; Shukla and Mehrotra, 2016 ; Herendeen and Herrera, 2019 ; Herrera et al, 2019 ; Lyson et al, 2019 ; Shukla et al, 2019 ; Jia et al, 2021 ; Li et al, 2021 ). By the middle Eocene all major lineages within the family are documented in the fossil record, and many securely identified fossils have been used to calibrate branch ages from molecular phylogenetic analyses (Herendeen et al, 1992 ; Lavin et al, 2005 ; Bruneau et al, 2008 ; Magallon et al, 2015 ; Estrella et al, 2017 ; Koenen et al, 2021 ).…”

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confidence: 99%

Fossil papilionoids of the Bowdichia clade (Leguminosae) from the Paleogene of North America

Herendeen

Cardoso

Herrera

et al. 2022

American J of Botany

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Premise Understanding the evolutionary history of flowering plants has been enriched by the integration of molecular phylogenies and evidence from the fossil record. Fossil fruits and leaves from the late Paleocene and Eocene of Wyoming and Eocene of Kentucky and Tennessee are described as extinct genera in the tropical American Bowdichia clade of the legume subfamily Papilionoideae. Recent phylogenetic study and taxonomic revision of the Bowdichia clade have facilitated understanding of relationships of the fossil taxa and their evolutionary implications and paleoenvironmental significance. Methods The fossils were studied using standard methods of specimen preparation and light microscopy and compared to fruits and leaves from extant legume taxa using herbarium collections. Phylogenetic relationships of the fossil taxa were assessed using morphology and DNA sequence data. Results Two new fossil genera are described and their phylogenetic relationships are established. Paleobowdichia lamarensis is placed as sister to the extant genus Bowdichia and Tobya claibornensis is placed with the extant genera Guianodendron and Staminodianthus. Conclusions These fossils demonstrate that the tropical American Bowdichia clade was present in North America during a period when tropical or subtropical conditions prevailed in the northern Rocky Mountains during the late Paleocene and the Mississippi Embayment during the middle Eocene. These fossils also document that the Bowdichia clade had diversified by the late Paleocene when the fossil record of the family is relatively sparse. This result suggests that future work on early fossil legumes should focus on tropical and subtropical climatic zones, wherever they may occur latitudinally.

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Cenozoic plants from Tibet: An extraordinary decade of discovery, understanding and implications

Zhou

Liu

Chen

et al. 2022

Sci. China Earth Sci.

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Fossil infructescence from southwestern China reveals Paleogene establishment of Cladrastis in Asia

Cited by 9 publications

References 36 publications

Meta‐analysis provides insights into the origin and evolution of East Asian evergreen broad‐leaved forests

Meta‐analysis provides insights into the origin and evolution of East Asian evergreen broad‐leaved forests

Fossil papilionoids of the Bowdichia clade (Leguminosae) from the Paleogene of North America

Cenozoic plants from Tibet: An extraordinary decade of discovery, understanding and implications

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