Jun-Jie Gu, Wei Yuan, Li-Bin Ma, André Nel, Zi-Qiang Xu, Ning Wang, Chunxian Jiang, Dong Ren, Yanli Yue
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引用次数: 0
摘要
Gryllloidea(蟋蟀)和 Gryllotalpoidea(蝼蛄和蚁蟋蟀)是直翅目中相对古老的一系,但它们的化石记录并不丰富。它们目前被认为是蝼蛄科中的姊妹支系,但在形态和生态适应性方面有明显的差异。我们报告了一个新的蝼蛄科,†Pseudogryllotalpidae fam.新种†Pseudogryllotalpa scalprata gen. et sp. nov.、†Unidigitus longialatus gen. et sp. nov.、†Petilus zhengi gen. et sp. nov.它们的外生短产卵器和经过改造的化石前肢表明它们喜欢在土壤中栖息。这个新的科表现出一系列介于 Gryllloidea 和 Gryllotalpoidea 之间的 "中间 "特征,似乎是连接这两个超科的 "过渡 "化石群。这个新的科被认为是现生 Gryllotalpoidea 的姊妹群,为研究 Grylloidea 和 Gryllotalpoidea 的关系和演化提供了新的视角。
More than a name: Mid-Cretaceous amber fossils link crickets and mole crickets (Orthoptera, Ensifera)
Grylloidea (crickets) and Gryllotalpoidea (mole crickets and ant crickets) are relatively ancient lineages within Orthoptera but their fossil records are not very rich. They are currently considered sister clades within the Gryllidea but with obvious differences in morphology and ecological adaptations. We report a new gryllidean family, †Pseudogryllotalpidae fam. nov. with three new genera and four new species, viz. †Pseudogryllotalpa scalprata gen. et sp. nov., †Unidigitus longialatus gen. et sp. nov., †Petilus zhengi gen. et sp. nov. and †Chunxiania fascia sp. nov. from the mid-Cretaceous of northern Myanmar (ca. 99 million years ago). Their external and short ovipositors and their modified fossorial forelegs suggest a soil-inhabiting preference. This new family exhibits a series of ‘intermediate’ character states between Grylloidea and Gryllotalpoidea and seems to be a ‘transitional’ fossil group linking these two superfamilies. This new family was resolved as a sister group of the extant Gryllotalpoidea and provides a new insight into the relationship and evolution of Grylloidea and Gryllotalpoidea.
期刊介绍:
Systematic Entomology publishes original papers on insect systematics, phylogenetics and integrative taxonomy, with a preference for general interest papers of broad biological, evolutionary or zoogeographical relevance.