Mesozoic giant fleas from northeastern China (Siphonaptera):Taxonomy and implications for palaeodiversity  

作　　者：HUANG DiYing ENGEL Michael S CAI ChenYang NEL André 

机构地区：[1]State Key Laboratory of Palaeobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences [2]Division of Entomology, Natural History Museum, and Department of Ecology & Evolutionary Biology, University of Kansas [3]CNRS UMR 7205, CP 50, Entomologie, Muséum National d'Histoire Naturelle

出　　处：《Chinese Science Bulletin》2013年第14期1682-1690,共9页

基　　金：provided by the National Basic Research Program of China(2012CB821903);the National Natural Science Foundation of China(91114201 and 41222013);the Outstanding Youth Foundation of Jiangsu Province (BK2012049);the Knowledge Innovation Program of the Chinese Academy of Sciences (KZCX2-YW-QN104);U.S. National Science Foundation (DEB-0542909)

摘　　要：The recently discovered definite giant fleas from the Middle Jurassic Daohugou fauna and the Early Cretaceous Jehol fauna of northeastern China represent significant evidence for understanding ectoparasitism in the Mesozoic as well as the evolution of these giant blood feeders with their putative hosts (i.e. hairy or feathered vertebrates). On the basis of seven well-preserved specimens from Daohugou and Huangbanjigou we analyse the systematic classification of these primitive fleas, establishing two new genera and three new species as Pseudopulex wangi sp. nov., Hadropsylla sinica gen. et sp. nov., and Tyrannopsylla beipiaoensis gen. et sp. nov. All of them are assigned to the extinct siphonapteran family Pseudopulicidae, while the Early Cretaceous genus Tarwinia is transferred to Tarwiniidae fam. nov. The basal morphological disparities of Siphonaptera in the Mesozoic are evidenced by the occurrence of at least three distinct groups (pseudopulicids, tarwiniids, and saurophthirids). These disparate morphologies likely indicate adaptations to different hosts.The recently discovered definite giant fleas from the Middle Jurassic Daohugou fauna and the Early Cretaceous Jehol fauna of northeastern China represent significant evidence for understanding ectoparasitism in the Mesozoic as well as the evolution of these giant blood feeders with their putative hosts （i.e. hairy or feathered vertebrates）. On the basis of seven well-preserved spec- imens from Daohugou and Huangbanjigou we analyse the systematic classification of these primitive fleas, establishing two new genera and three new species as Pseudopulex wangi sp. nov., Hadropsylla sinica gen. et sp. nov., and Tyrannopsylla beipiaoensis gen. et sp. nov. All of them are assigned to the extinct siphonapteran family Pseudopulicidae, while the Early Cretaceous genus Tarwinia is transferred to Tarwiniidae faro. nov. The basal morphological disparities of Siphonaptera in the Mesozoic are evi- denced by the occurrence of at least three distinct groups （pseudopulicids, tarwiniids, and saurophthirids）. These disparate mor- phologies likely indicate adaptations to different hosts.

关 键 词：中国东北地区 中生代 跳蚤 巨型 分类 东北部 早白垩世 形态差异 

分 类 号：Q915[天文地球—古生物学与地层学]