摘要
辽西冀北晚中生代已记录的蜥蜴类化石共4属5种,及2个未命名属种。这些化石自下而上可划分4个蜥蜴类化石带:中侏罗世杨氏矢部龙带(Yabeinosaurus youngi Zone)、早白垩世早期长趾大凌河蜥-细小矢部龙组合带(Dalinghosaurus longidigitus-Yabeinosaurus tenuis Assemblage Zone)、早白垩世早期细小矢部龙带(Yabeinosaurus tenuis Zone)及早白垩世晚期炭德氏蜥带(Teilhardosaurus canbonarius Zone)。长趾大凌河蜥-细小矢部龙组合带中的蜥蜴类属种最为丰富且分布较广,为研究早期蜥蜴类的地理地史分布等具有重要价值。
Late Mesozoic fossil lizards have been known from western Liaoning and northern Hebei, which are one of the most important elements of the Late Jurassic and Early Cretaceous lizards in the world. Four genera and five species of Liaoning and Hebei fossil lizards were named, and at least two new genera and species are being studied. Four lizard fossil zones are recognized in ascending order: Middle Jurassic Yabeinosaurus youngi Zone, early Early Cretaceous Dalinghosaurus longidigitus-Yabeinosaurus ten-uis Assemblage Zone, early Early Cretaceous Yabeinosaurus tenuis Zone, and late Early Cretaceous Teil-hardosaurus canbonarius Zone. Among these zones, Dalinghosaurus longidigitus-Yabeinosaurus tenuis Assemblage zone yielded relatively abundant kinds of lizards and spread widely, which is significant in the study of the worldwide biogeographical and biostratigraphical distributions of the early lizards.
出处
《科学技术与工程》
2004年第9期756-759,767,共5页
Science Technology and Engineering
基金
国家自然科学基金(40272008)
中国博士后科学基金(2003034012)
原地质矿产部青年地质学家基金(Qn979827)资助
关键词
蜥蜴类
晚中生代
生物地层
辽西
冀北
lizards Late Mesozoic biostratigraphy western Liaoning northern Hebei
