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Pronemouridae fam. nov. (Insecta: Plecoptera), the stem group of nemouridae and notonemouridae, from the Middle Jurassic of Inner Mongolia, China
Author(s) -
YUSHUANG LIU,
SINITSHENKOVA NINA D.,
DONG REN,
CHUNGKUN SHIH
Publication year - 2011
Publication title -
palaeontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.69
H-Index - 63
eISSN - 1475-4983
pISSN - 0031-0239
DOI - 10.1111/j.1475-4983.2011.01063.x
Subject(s) - cretaceous , inner mongolia , china , biology , extant taxon , genus , paleontology , zoology , group (periodic table) , geography , evolutionary biology , archaeology , chemistry , organic chemistry
A new family, Pronemouridae fam. nov., with a new genus, Pronemoura gen. nov., and five new species of fossil stoneflies are described from Daohugou village (Middle Jurassic), Inner Mongolia, China: P . shii sp. nov., P . angustithorax sp. nov., P . longialata sp. nov., P . minuta sp. nov. and P . peculiaris sp. nov. Wing venation of pronemourinids presents some or considerable variety in the fore and hind wings of the same or different individuals. Pronemourinidae, retaining plesiomorphic characters (short, multisegmented cerci and CuA with forks), should be treated as the stem group of Nemouridae and Notonemouridae. Based on fossil data, we propose a model in which the extant plecopterid distribution began in the Early Cretaceous. Nemouridae and Notonemouridae must have occurred in Asia and begun to migrate from here by at least the Early Cretaceous.