Fossil leaves, fruits and pollen of &lt;i&gt;Liquidambar&lt;/i&gt; (Hamamelidaceae) from the Lower Miocene Nakamura Formation in Gifu Prefecture, central Japan

治行, 伊奈; 毅, 齊藤; 基弘, 川瀬; 偉銘, 王

doi:10.5575/geosoc.113.542

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…An incompletely preserved small head of Liquidambar sp. associated with leaves of L. miosinica was reported from the Lower Miocene Nakamura Formation, the southern part of Gifu Prefecture, Japan [ 59 ].…”

Section: Discussionmentioning

confidence: 99%

Structurally Preserved Liquidambar Infructescences, Associated Pollen, and Leaves from the Late Oligocene of the Nanning Basin, South China

Xu,

Maslova,

Kodrul

et al. 2024

Plants

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Liquidambar L. is a significant constituent of the Cenozoic flora in the Northern Hemisphere. Currently, this genus exhibits a discontinuous distribution across Asia and North America, with the center of diversity being in southeastern Asia. This study presents the first occurrence of Liquidambar in the Oligocene of South China. Fossil sweetgum infructescences, associated pollen, and leaves have been found in the Nanning Basin, Guangxi. A new species, Liquidambar nanningensis sp. nov., is described based on the morphological and anatomical characteristics of three-dimensionally preserved infructescences. The Liquidambar fossils from the Nanning Basin show a combination of features indicative of the former genera of Altingiaceae, Altingia, Liquidambar s. str., and Semiliquidambar. The new occurrence expands the taxonomic and morphological diversity of the Paleogene Liquidambar species in South China.

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Section: Discussionmentioning

confidence: 99%

Structurally Preserved Liquidambar Infructescences, Associated Pollen, and Leaves from the Late Oligocene of the Nanning Basin, South China

Xu,

Maslova,

Kodrul

et al. 2024

Plants

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“…1990; Ozaki 1991; Ina et al . 2007), L. yabei (Morita) Huzioka (Huzioka 1974), and L. mioformosana Tanai (Tanai 1961), as well as the Eocene L. maomingensis (Maslova et al . 2015) and species from the Oligocene of Japan assigned to the extant species L. formosana (Matsuo 1970).…”

Section: Discussionmentioning

confidence: 99%

“…Numerous leaves from the Neogene of East Asia, similar to those of L. formosana , have been assigned to L. miosinica (Hu & Chaney 1940; Tanai & Suzuki 1965; Ishida 1970; Onoe 1974; Ozaki 1991; Ina et al . 2007). Overall, Tanai (1967, 1970, 1976) proposed that all Liquidambar species from the Palaeogene and Neogene of East Asia be assigned to the single species L. miosinica .…”

Section: Discussionmentioning

confidence: 99%

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Evidence for the evolutionary history and diversity of fossil sweetgums: leaves and associated capitate reproductive structures of Liquidambar from the Eocene of Hainan Island, South China

Maslova,

Kodrul,

Kachkina

et al. 2023

Papers in Palaeontology

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Extant species of Liquidambar L. exhibit a disjunct distribution between western and eastern Asia and eastern North America to Central America, with the highest species diversity being in China. In this study, two new species of Liquidambar are described from the Eocene of Hainan Island, South China: L. hainanensis on basis of the leaf fossils, and L. ovoidea based on compressions of infructescences. The co‐occurrences of L. hainanensis leaves, associated infructescences of L. ovoidea and dispersed pantoporate pollen grains have the combination of morphological features peculiar to the genera Liquidambar and former Semiliquidambar and Altingia. This is considered further palaeobotanical justification for the placement of these three genera into a single genus, Liquidambar, proposed earlier based on molecular markers. Our data provide evidence for the occurrence of an ancestral polymorphic group of Liquidambar species (L. maomingensis with associated capitate infructescences, L. bella, L. hainanensis and L. ovoidea) during the Eocene in South China, and corroborate the view that South China could have been a centre of Liquidambar speciation during the Eocene. The morphological similarity of L. hainanensis leaves to those of the extant species L. orientalis from Western Asia and the North American L. styraciflua may support the importance of both the North Atlantic Land Bridge and the Bering Land Bridge for the dispersal of Liquidambar. Analysis of fossil species of Liquidambar from eastern Asia also contributes to further understanding of patterns in the taxonomic diversity and evolutionary history of this genus.

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“…However, Fagus pollen was dominant (approx. 30% of total pollen) in profiles in several strata yielding F. antipofi in the early Early Miocene Mizunami Group in Gifu Prefecture (Ina et al, 2007; Saito, 1992) and the late Early Miocene in Hokkaido (Sato, 1963), indicating occasional dominance of F. antipofi in deciduous broad‐leaved forests. In the case of pollen profiles in the latest Late Miocene (ca 6 Ma) in Tatsumitoge, Tottori Prefecture (Saito & Ichitani, 2007), in the latest Late Miocene and Pliocene (ca 7–2.6 Ma) in Himi, Toyama Prefecture (W. Wang et al, 2001), and the Pliocene (ca 5–2.6 Ma, Yanagisawa & Watanabe, 2011) in Oga Peninsula, Akita Prefecture (Yamanoi, 1978), Fagus pollen is constantly the most abundant among deciduous broad‐leaved tree pollen.…”

Section: Neogene Beeches and Their States In Forestsmentioning

confidence: 99%

Review: Biogeographic and environmental history of Fagus and beech‐dominant forest in Japan

Momohara

Ito

2023

Ecological Research

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There is a rich beech fossil record in Japan dating from the Paleogene to the Holocene, which allows for the continuous tracing of the evolutionary history of the genus and allows us to understand the environmental background that facilitated the genus to obtain a dominant state in present-day forests. In addition to the temperate climate, the oceanic climate was an important factor in controlling beech distribution and dominance in the forests in Japan. With the cooling climate, beech species began expanding their distribution in the Northern Hemisphere in the middle Eocene and appeared in Japan in the late middle Eocene. Beech species became dominant in forests in Japan during the Miocene along with the development of the oceanic climate by the opening of the Sea of Japan and with the strengthening of the monsoon. Fagus crenata appeared until the Late Pliocene and became dominant in forests in central Japan in the late Early Pleistocene coinciding with the onsetting inflow of the Tsushima Warm Current to the Sea of Japan in interglacial stages. During the full-glacial stages since the late Middle Pleistocene, the cold and dry climate caused by the strong winter monsoon limited the distribution of beeches into refugia at humid places, including the inland. During the deglaciation since ca 19 ka, the beech population began to grow and its distribution expanded, controlled by the development of the Tsushima Warm Current, as well as latitudinal and altitudinal temperature clines.

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Fossil leaves, fruits and pollen of <i>Liquidambar</i> (Hamamelidaceae) from the Lower Miocene Nakamura Formation in Gifu Prefecture, central Japan

Cited by 6 publications

References 5 publications

Structurally Preserved Liquidambar Infructescences, Associated Pollen, and Leaves from the Late Oligocene of the Nanning Basin, South China

Structurally Preserved Liquidambar Infructescences, Associated Pollen, and Leaves from the Late Oligocene of the Nanning Basin, South China

Evidence for the evolutionary history and diversity of fossil sweetgums: leaves and associated capitate reproductive structures of Liquidambar from the Eocene of Hainan Island, South China

Review: Biogeographic and environmental history of Fagus and beech‐dominant forest in Japan

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