Occurrence of Sciadopitys-like fossil wood (Coniferales) in the Jurassic of western Liaoning and its evolutionary implications

Jiang, Zikun; Wang, Yongdong; Zheng, Sisi; Zeng, Wu; Tian, Na

doi:10.1007/s11434-011-4850-z

Cited by 20 publications

(14 citation statements)

References 21 publications

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“…These beds contain abundant well-preserved fossil plants, including leaf foliages, seeds and fruits, permineralized rhizomes and fossil wood20. Many anatomically preserved plant specimens were recently reported from the Tiaojishan Formation, including fern rhizomes Ashicaulis 27282930, cycad stem Lioxylon 31 and conifers Araucariopitys, Pinoxylon, Sciadopityoxylon and Xenoxylon 2032 (Fig. 1).…”

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A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution

Jiang

Wang

Philippe

et al. 2016

Sci Rep

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The fossil record of Ginkgo leaf and reproductive organs has been well dated to the Mid-Jurassic (170 Myr). However, the fossil wood record that can safely be assigned to Ginkgoales has not yet been reported from strata predating the late Early Cretaceous (ca. 100 Myr). Here, we report a new fossil wood from the Mid-Late Jurassic transition deposit (153–165 Myr) of northeastern China. The new fossil wood specimen displays several Ginkgo features, including inflated axial parenchyma and intrusive tracheid tips. Because it is only slightly younger than the oldest recorded Ginkgo reproductive organs (the Yima Formation, 170 Myr), this fossil wood very probably represents the oldest bona fide fossil Ginkgo wood and the missing ancestral form of Ginkgo wood evolution.

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A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution

Jiang

Wang

Philippe

et al. 2016

Sci Rep

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“…Many leaf fossils have been reported from this formation, including ferns, cycads, ginkgophytes, conifers, sphenopsida, and bryophytes (Zheng and Zhang 1982;Zhang and Zheng 1987;Wang et al 2006). In western Liaoning this formation also contains horizons bearing remarkable fossil wood, including the cycad stem Lioxylon liaoningense , conifer wood taxa Pinoxylon dacotense Knowlton, Xenoxylon phyllocladoides Gothan, Araucariopitys sp., and a Sciadopitys-\\kt stem Jiang et al 2008Jiang et al , 2012. The earliest feathered troodontid theropod [Anchiornis huxlei Hu, Hou, Zhang et Xu) and earliest eutherian mammal {Juramaia sinensis Luo, Yuan, Meng et Ji) have also been reported from the Tiaojishan Formation in western Liaoning and adjacent regions Luo et al 2011).…”

Section: Methodsmentioning

confidence: 99%

Ashicaulis beipiaoensissp. nov., a New Osmundaceous Fern Species from the Middle Jurassic of Liaoning Province, Northeastern China

Tian

Wang

Zeng³

et al. 2013

International Journal of Plant Sciences

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“…Sahnioxylon rajmahalense (Sahni) Bose et Sah contains heterogeneous pith cells (Zheng et al 2005). Sciadopitys-like wood, a new fossil wood species, bears a heterogeneous pith consisting of parenchyma cells and small number of scattered sclerenchyma cells (Jiang et al 2012). Sinocycadoxylon liianum Zhang, Yang, Fu, Zheng et Wang is a polyxylic cycad with a small pith, a polyxylic vascular cylinder and cortex (Zhang et al 2012).…”

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confidence: 99%

The Jurassic fossil wood diversity from western Liaoning, NE China

et al. 2019

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Western Liaoning is a unique region in China that bears diverse types of Jurassic plants, including leaves, fern rhizomes, and wood, providing significant proxy for vegetation and palaeoenvironment reconstruction of the well-known Yanliao Flora in East Asia. In particular, the silicified wood is very abundant in the fossil Lagerstätte of the Jurassic Tiaojishan Formation in Beipiao, western Liaoning. Previous and recent systematic investigations documented a high diversity of the Jurassic wood assemblages. These assemblages are dominated by conifers, followed by cycads and ginkgoaleans. In total, about 30 species belonging to 21 genera of fossil wood have been recorded so far, which are represented by Cycadopsida, Ginkgopsida, Coniferopsida, and Gymnospermae incertae sedis. The evolutionary implications of several distinctive fossil wood taxa as well as palaeoclimate implications are summarized based on their anatomical structures and growth ring patterns. This work approaches the vegetation development and evolutionary significances of the wood taxa and their relatives, and provides clues for the further understanding of the diversity of the Jurassic Yanliao Flora in East Asia.

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Occurrence of Sciadopitys-like fossil wood (Coniferales) in the Jurassic of western Liaoning and its evolutionary implications

Cited by 20 publications

References 21 publications

A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution

A Jurassic wood providing insights into the earliest step in Ginkgo wood evolution

Ashicaulis beipiaoensissp. nov., a New Osmundaceous Fern Species from the Middle Jurassic of Liaoning Province, Northeastern China

The Jurassic fossil wood diversity from western Liaoning, NE China

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