A new gigantopterid genus from the late Permian of the Daha Coalfield, Tibetan Plateau and its implication on plant-insect interactions

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A new gigantopterid genus from the late Permian of the Daha Coalfield, Tibetan Plateau and its implication on plant-insect interactions. / Zhou, Weiming; Chen, Bi-Yun; Sun, Wei; He, Xuezhi; Hilton, Jason; Wang, Jun.

In: Historical Biology, 26.12.2020.

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@article{6522a66753624c9cbab2e7eadfa592e6,
title = "A new gigantopterid genus from the late Permian of the Daha Coalfield, Tibetan Plateau and its implication on plant-insect interactions",
abstract = "Gigantopterid plants share common traits of megaphyllous leaves with multi-ordered venation and have a stratigraphic distribution restricted to the Permian Period. They display a large variety of leaf morphologies which may indicate affinities from more than one plant groups including ferns and pteridosperms such as the peltasperms. Here we describe a new genus of gigantopterid with two species from the upper Permian Nayixiong Formation in the Daha Coalfield, Qinghai Province, China. The new genus Filigigantopteris is markedly different from other gigantopterid genera in having fern-like leaf architecture with double-meshed venation. Filigigantopteris asymmetrica gen. et sp. nov. is characterized by its asymmetric pinnules with dissected lobes, while Filigigantopteris dahaia gen. et sp. nov. is characterized by its once-pinnate frond. A gigantopterid leaf figured from the Lopingian of southwest China that was previously incorrectly assigned to Gigantopteris nicotianaefolia may represent a third species of Filigigantopteris. The new genus further emphasizes the morphological diversity and obscure systematic position of the Permian gigantopterids. In addition, three types of functional feeding groups, including hole feeding, margin feeding and probably skeletonization, are present on laminae of Filigigantopteris, suggesting frequent and diverse plant-insect interactions between gigantopterid megaphylls and herbivorous insects in Cathaysia.",
keywords = "Cathaysia, gigantopterids, Filigigantopteris gen. nov, Tibetan Plateau, plant-insect interaction",
author = "Weiming Zhou and Bi-Yun Chen and Wei Sun and Xuezhi He and Jason Hilton and Jun Wang",
year = "2020",
month = dec,
day = "26",
doi = "10.1080/08912963.2020.1860033",
language = "English",
journal = "Historical Biology A Journal of Paleobiology",
issn = "0891-2963",
publisher = "Taylor & Francis",

}

RIS

TY - JOUR

T1 - A new gigantopterid genus from the late Permian of the Daha Coalfield, Tibetan Plateau and its implication on plant-insect interactions

AU - Zhou, Weiming

AU - Chen, Bi-Yun

AU - Sun, Wei

AU - He, Xuezhi

AU - Hilton, Jason

AU - Wang, Jun

PY - 2020/12/26

Y1 - 2020/12/26

N2 - Gigantopterid plants share common traits of megaphyllous leaves with multi-ordered venation and have a stratigraphic distribution restricted to the Permian Period. They display a large variety of leaf morphologies which may indicate affinities from more than one plant groups including ferns and pteridosperms such as the peltasperms. Here we describe a new genus of gigantopterid with two species from the upper Permian Nayixiong Formation in the Daha Coalfield, Qinghai Province, China. The new genus Filigigantopteris is markedly different from other gigantopterid genera in having fern-like leaf architecture with double-meshed venation. Filigigantopteris asymmetrica gen. et sp. nov. is characterized by its asymmetric pinnules with dissected lobes, while Filigigantopteris dahaia gen. et sp. nov. is characterized by its once-pinnate frond. A gigantopterid leaf figured from the Lopingian of southwest China that was previously incorrectly assigned to Gigantopteris nicotianaefolia may represent a third species of Filigigantopteris. The new genus further emphasizes the morphological diversity and obscure systematic position of the Permian gigantopterids. In addition, three types of functional feeding groups, including hole feeding, margin feeding and probably skeletonization, are present on laminae of Filigigantopteris, suggesting frequent and diverse plant-insect interactions between gigantopterid megaphylls and herbivorous insects in Cathaysia.

AB - Gigantopterid plants share common traits of megaphyllous leaves with multi-ordered venation and have a stratigraphic distribution restricted to the Permian Period. They display a large variety of leaf morphologies which may indicate affinities from more than one plant groups including ferns and pteridosperms such as the peltasperms. Here we describe a new genus of gigantopterid with two species from the upper Permian Nayixiong Formation in the Daha Coalfield, Qinghai Province, China. The new genus Filigigantopteris is markedly different from other gigantopterid genera in having fern-like leaf architecture with double-meshed venation. Filigigantopteris asymmetrica gen. et sp. nov. is characterized by its asymmetric pinnules with dissected lobes, while Filigigantopteris dahaia gen. et sp. nov. is characterized by its once-pinnate frond. A gigantopterid leaf figured from the Lopingian of southwest China that was previously incorrectly assigned to Gigantopteris nicotianaefolia may represent a third species of Filigigantopteris. The new genus further emphasizes the morphological diversity and obscure systematic position of the Permian gigantopterids. In addition, three types of functional feeding groups, including hole feeding, margin feeding and probably skeletonization, are present on laminae of Filigigantopteris, suggesting frequent and diverse plant-insect interactions between gigantopterid megaphylls and herbivorous insects in Cathaysia.

KW - Cathaysia

KW - gigantopterids

KW - Filigigantopteris gen. nov

KW - Tibetan Plateau

KW - plant-insect interaction

U2 - 10.1080/08912963.2020.1860033

DO - 10.1080/08912963.2020.1860033

M3 - Article

JO - Historical Biology A Journal of Paleobiology

JF - Historical Biology A Journal of Paleobiology

SN - 0891-2963

ER -