A new species of <i>Pinus</i> (Pinaceae) from the Miocene of Weichang, Hebei Province, China and its evolutionary significance

Li, Ya; Yi, Tie-Mei; Grote, Paul J.; An, Pengcheng; Zhu, Yanfei; Zhang, Zhiyong; Li, Cheng‐Sen

doi:10.1080/08912963.2021.1952197

Cited by 3 publications

(19 citation statements)

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“…First, subsections Strobus Loudon and Krempfianae Little et Crichfield of section Quinquefoliae , and subsections Cembroides Engelmann and Nelsoniae van der Burgh of section Parrya within the subgenus Strobus possess no umbo prickle ( Table 1 ). This is also the case in subsection Pinaster Loudon of section Pinus of the subgenus Pinus ( Table 1 ; Farjon, 2021 ); Li et al. (2022) stated that three species in this subsection ( Pinus canariensis C.Sm.…”

Section: Discussionmentioning

confidence: 83%

“…The five subsections of section Trifoliae and subsection Balfourianae Engelmann of section Parrya are characterized by variable prickles ( Fig. 1 B; Table 1 ; Gernandt et al., 2005 ), but other cone characters (e.g., cone shape, size, symmetry and umbo mucro position) ( Klaus, 1980 ; Li et al., 2022 ) will suffice to distinguish these groups from our fossil cones that have a denticulatomucronate umbo. For instance, Li et al.…”

Section: Discussionmentioning

confidence: 99%

“…ex D.C., Pinus roxburghii Sarg. and Pinus heldreichii H. Christ) also have geniculate umbos ( Klaus 1980 ; for details see Li et al., 2022 ), an umbo type with a clear knot-shaped thickening (not a mucro) at the root of the tectum ( Klaus, 1980 : Fig. 1 ).…”

Section: Discussionmentioning

confidence: 99%

“…Data from all online sources were used cautiously and only when the identification and character details were deemed reliable. The terminology for cone morphology and anatomy is adapted mainly from Klaus (1980 , 1989) (e.g., umbo and apophysis), Li et al. (2022) and Yoshie and Sakai (1985) .…”

Section: Methodsmentioning

confidence: 99%

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A novel seed cone of Pinus from the Miocene of coastal Southeast China indicates kinship with Southeast Asian pines

Zhang

et al. 2023

Plant Diversity

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Section: Discussionmentioning

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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A novel seed cone of Pinus from the Miocene of coastal Southeast China indicates kinship with Southeast Asian pines

Zhang

et al. 2023

Plant Diversity

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“…(Amblystegiaceae) (Guo et al, 2013). Woody plants include one conifer species, Pinus weichangensis T.‐M.Yi & C.‐S.Li (Li et al, 2022), and three angiospermous shrubs, namely Comptonia naumannii (Nathorst) Huzioka, C. tymensis Dorofeev (Myricaceae), and Weigela weichangensis Y.Li & C.‐S.Li (Caprifoliaceae) (Liang et al, 2010, 2013). Wetland plants are represented by Scirpus weichangensis X.Q.Liang (Cyperaceae) and Spirematospermum wetzleri (Heer) Chandler (Zingiberaceae) (Yi et al, 2008; Li et al, 2018; Lu et al, 2019).…”

Section: Discussionmentioning

confidence: 99%

Exceptionally well‐preserved seed cones of a new fossil species of hemlock, Tsuga weichangensis sp. nov. (Pinaceae), from the Lower Miocene of Hebei Province, North China

Gee

Tan

et al. 2023

J of Sytematics Evolution

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Tsuga (hemlock) is a small genus of 10 extant species in the Pinaceae, with a disjunct distribution in East Asia and eastern and western North America. Reliable species‐level identification of Tsuga fossils depends on the discovery of seed cones with intact bracts, but such cones are rare in the fossil record. Here we describe a new fossil species of hemlock as T. weichangensis sp. nov. based on exquisitely preserved seed cones with nearly complete bracts from the Lower Miocene of Weichang, Hebei Province, North China. This fossil species displays a mosaic of characters between Tsuga and Nothotsuga. The well‐developed and slightly exserted bract scales of T. weichangensis are reminiscent of Nothotsuga, but other characters, such as nonleaved peduncles and tongue‐shaped bract scales, in addition to monosaccate pollen found at the same fossil locality, suggest an affinity closer to Tsuga. Cladistic analysis based on 15 morphological characters and a molecular backbone constraint supports the assignment of these fossil cones to Tsuga rather than Nothotsuga, and places the fossil species of T. weichangensis in an unresolved polytomy within the genus Tsuga. The occurrence of Tsuga seed cone fossils indicate the paleoclimate in the Miocene of Weichang was warmer and more humid than today's climate, which is consistent with the paleoclimate reconstructed by paleopalynology.

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Mummified Seed Cones of Pinus prehwangshanensis sp. nov. (Subgenus Pinus, Pinaceae) From the Upper Pleistocene of Guangdong, South China: Taxonomical Significance and Implication for Phytogeography and Ecology

Bazhenova

Kodrul

et al. 2022

Front. Ecol. Evol.

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Anatomical characters of Cenozoic pine seed cones are known mainly from North American fossils, while data on cone anatomy of Cenozoic species from Asia remain scarce. To date, only one seed cone of Pinus from the Miocene of eastern China has been studied using micro-computed tomography (micro-CT). A new fossil-species, Pinus prehwangshanensis sp. nov., of mummified seed cones from the upper Pleistocene of South China is described using a combination of scanning electron microscopy (SEM) and micro-CT. The new fossil-species combines a mosaic of seed cone morphological and anatomical characters observed in the group of closely related East Asian extant species of subgenus Pinus, section Pinus, subsection Pinus, comprising Pinus taiwanensis, Pinus hwangshanensis, Pinus luchuensis, Pinus thunbergii, and Pinus densiflora. The data obtained indicate that the characteristic anatomical features of this group were formed no later than the end of the Pleistocene. Based on the external seed cone morphology, the East Asian pine fossils confirm the existence of floristic exchange between continental Asia and the Japan archipelago prior to the formation of the Sea of Japan and later, in the middle Miocene to the late Pliocene, when the connection between the Japanese islands and Eurasian continent became re-established. Pollen grains associated with the new fossil-species are similar to those of some extant pine species related to P. thunbergii. A taxonomic and ecological analysis of the Pleistocene plant taxa from the Maoming Basin suggests that the regional climate was a humid subtropical monsoon with hot wet summers and cool dry winters, similar to the present-day climate of northeastern Vietnam.

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A new species of Pinus (Pinaceae) from the Miocene of Weichang, Hebei Province, China and its evolutionary significance

Cited by 3 publications

References 53 publications

A novel seed cone of Pinus from the Miocene of coastal Southeast China indicates kinship with Southeast Asian pines

A novel seed cone of Pinus from the Miocene of coastal Southeast China indicates kinship with Southeast Asian pines

Exceptionally well‐preserved seed cones of a new fossil species of hemlock, Tsuga weichangensis sp. nov. (Pinaceae), from the Lower Miocene of Hebei Province, North China

Mummified Seed Cones of Pinus prehwangshanensis sp. nov. (Subgenus Pinus, Pinaceae) From the Upper Pleistocene of Guangdong, South China: Taxonomical Significance and Implication for Phytogeography and Ecology

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