New dinosaur track assemblages were discovered recently in the Tianjialou Formation of
the Lower Cretaceous Dasheng Group in Shandong Province, China. Theropods are
represented by the trackways of two different medium-sized groups:(1) tridactyl tracks with a
typical mesaxonic shape;(2) functionally didactyl tracks attributed to deinonychosaurian
theropods. The latter report, the third from the Cretaceous of Shandong Province, enlarges
the global record of didactyl theropod tracks, until now sparsely documented from only a few …