Megaporoxylon sinensis sp. nov., a new coniferous trunk from the Upper Triassic of northern Bogda Mountains, northwestern China

Wan, Mingli; Wang, Jian; Shi, Tianming; Wang, Keyu; Tang, Peng; Wang, Jun

doi:10.1016/j.revpalbo.2021.104536

Cited by 4 publications

(2 citation statements)

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“…The morphology and anatomical structure of pith are regarded as the critical diagnostic criteria for the classification and identification of fossil gymnospermous stems, especially to taxonomic identification at generic level. Some trunks with structurally similar secondary xylems are mostly distinguishable based on pith due to its high sensitivity in plant evolution [ 4 , 45 , 46 ]. Among the above mentioned genera, only half of them has pith reported.…”

Section: Comparison and Discussionmentioning

confidence: 99%

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Stem Anatomy Confirms Tingia unita Is a Progymnosperm

Yang

Wang

2023

Biology

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Tingia Halle, a representative genus of the Cathaysia Flora, has been studied for nearly 100 years, being a small heterosporous tree based on the gross morphology of Tingia unita. However, the systematic affinity of Tingia is uncertain. Now, a number of well-preserved fossils of T. unita from the Taiyuan Formation of Lower Permian in Wuda Coalfield, Wuhai City, Inner Mongolia facilitates an examination of wood anatomy. The stem anatomy of T. unita shows parenchymatous pith, endarch primary xylem, pycnoxylic secondary xylem, and cortex, typically a type of gymnosperm wood, which taken together with pteridophytic reproduction, certainly evidences that Tingia Halle is a progymnosperm. In addition, Tingia together with Paratingia provide strong evidence to link the Noeggerathiales with progymnosperms.

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Section: Comparison and Discussionmentioning

confidence: 99%

“…Well-preserved fossil woods can provide valuable anatomical information not only on the wood structure, habit, but more significantly on the botanical affinity, in addition to their palaeoecological, palaeoenvironmental, and palaeoclimatological implications where they grew [ 1 , 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%