Jinyang Zhao , Chunpeng Xu , Chengquan Cao , Edmund A. Jarzembowski , Yan Fang , Chuantao Xiao
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Abstract
The Ripipterygidae is a small orthopteran family which comprises several bizarre species. A new genus and species of Ripipterygidae, Kallosripipteryx zhangi sp. nov., is described based on a well-preserved inclusion from mid-Cretaceous Kachin amber. The new genus and species are established based on the following combination of characters: wider interocular distance, prosternal process present, fusiform mesotibia, metatibia apical spurs about 1/3rd of metatarsus in length; paraproctal lobe two-segmented; and paraproctal lobe distinctly longer than ovipositor. Additionally, we recognize a kind of metatarsal structure among most Mesozoic ripipterygids: the outer side of apical process is triangular in lateral view. Our new find enriches the biodiversity of fossil Ripipterygidae as well as Tridactyloidea, and provides a new interpretation of biogeography of Tridactyloidea.
期刊介绍：
Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings.
Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale.
Research Areas include:
• Regional geology
• Stratigraphy and palaeontology
• Palaeobiology
• Palaeobiogeography
• Palaeoceanography
• Palaeoclimatology
• Evolutionary Palaeoecology
• Geochronology
• Global events.
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