2018
DOI: 10.1111/jse.12450
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An early Oligocene fossil acorn, associated leaves and pollen of the ring‐cupped oaks (Quercus subg. Cyclobalanopsis) from Maoming Basin, South China

Abstract: The ring‐cupped oaks (Quercus subg. Cyclobalanopsis) characterized by united and concentric ring‐cupped acorns, are mainly distributed in broad‐leaved evergreen forests in tropical and subtropical regions of East and Southeast Asia. Their geological history has been traced from the middle Eocene to Pleistocene. Most reports of the subgenus have been on the basis of leaves, whereas the acorns or cupules, more valuable evidence for the inter‐ and intrageneric classifications, have been relatively poorly document… Show more

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Cited by 10 publications
(7 citation statements)
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“…Manchester (Juglandaceae), Myrica L. (Myricaceae), Ailanthus Desf. (Simaroubaceae), and Sabalites (Saporta) Read & Hickey (Palmae) (Liu et al, 2019; Wu et al, 2019).…”
Section: Methodsunclassified
See 1 more Smart Citation
“…Manchester (Juglandaceae), Myrica L. (Myricaceae), Ailanthus Desf. (Simaroubaceae), and Sabalites (Saporta) Read & Hickey (Palmae) (Liu et al, 2019; Wu et al, 2019).…”
Section: Methodsunclassified
“…Plant-bearing deposits have been dated to the second half of the early Oligocene based on the palynological data (Herman et al, 2017). To date, identified genera from a diverse plant megafossil assemblage include Equisetum L. (Liu et al, 2019;Wu et al, 2019).…”
Section: Methodsmentioning
confidence: 99%
“…In China, the earliest reliable Q. sect. Cyclobalanopsis fossils were discovered from the Oligocene stratum in Yunnan and Guangdong provinces ( Figure 15C; Writing Group of Cenozoic Plants of China [WGCPC], 1978;Liu et al, 2019). The Quercus fossils here from Hainan Island have a wide variety of species, including 5 species of Q. sect.…”
Section: Phytogeographic Implicationsmentioning
confidence: 99%
“…Quercus spp. are widely distributed in temperate, subtropical montane regions and semiarid floras of Asia, Europe and North America (Liu et al, 2018). Selected oak species such as pedunculate oak ( Quercus robur ) are considered keystone species in forest ecosystems and are major drivers of terrestrial biodiversity (Demeter et al, 2021).…”
Section: Introductionmentioning
confidence: 99%