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Magnoavipes (ornithomimid?) track from Lower Cretaceous of China



From: Ben Creisler
bcreisler@gmail.com


A new online paper:


Masaki Matsukawa, Martin G. Lockley, Keiichi Hayashi, Kazuto Korai,
Chen Peiji & Zhang Haichun (2013)
First report of the ichnogenus Magnoavipes from China: New discovery
from the Lower Cretaceous inter-mountain basin of Shangzhou, Shaanxi
Province, central China.
Cretaceous Research 47: 131–139
doi:  http://dx.doi.org/10.1016/j.cretres.2013.10.005
http://www.sciencedirect.com/science/article/pii/S0195667113001626


Large, slender probable ornithomimid theropod tracks and robust
theropod tracks occur in the Lower Cretaceous Fenjiashan Formation in
Shaojian Village located southwest of Shangzhou City, Shaanxi
Province, China. The large, slender tridactyl tracks of a biped are
identified as Magnoavipes asiaticus ichnosp. nov. This is the first
discovery of the ichnogenus Magnoavipes, a probable ornithomimid
theropod track, in China. Co-occurrence of both Magnoavipes asiaticus
and robust theropod tracks assigned to Megalosauripus ichnosp.
indicates that two distinct trackmaking dinosaurs inhabited Early
Cretaceous inter-montane basins. The Magnoavipes track-maker evidently
expanded its habitat from inter-montane basins in the Early Cretaceous
to fluvio-lacustrine and coastal plain environments in the Late
Cretaceous.