期刊
PALAEONTOLOGY
卷 55, 期 -, 页码 109-126出版社
WILEY
DOI: 10.1111/j.1475-4983.2011.01121.x
关键词
dinosaur footprints; Madagascar; Middle Jurassic; Bemaraha Formation; theropod tracks; sauropod tracks; ichnotaxonomy
类别
New dinosaur tracksites are described from the BajocianBathonian Bemaraha Formation of western Madagascar. Two track-bearing surfaces can be followed over a distance of at least 4 km, suggesting the existence of a hitherto unrecognized megatracksite. The track assemblage is theropod dominated, but sauropod tracks also occur at one site. Qualitative and quantitative analysis of the abundant theropod track material suggests that most, if not all, theropod footprints are attributable to a single trackmaker and are referred to Kayentapus isp. Although this ichnogenus, originally described from the Lower Jurassic of North America, has never been recorded from Gondwana nor from the Middle Jurassic, track morphology strongly suggests this attribution. Palaeogeographical, sedimentological and ichnological data suggest that the dinosaur tracks formed in an intertidal to supratidal setting where the coastline influenced the preferred walking direction of the animals.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据