ammonites
Apatichnus circumagens Hitchcock 1858 (bird foot dinosaur)

Reptilia - Dinosauria - Anomoepodidae

Full reference: E. Hitchcock. 1858. Ichnology of New England. A Report on the Sandstone of the Connecticut Valley, Especially its Fossil Footmarks, Made to the Government of the Commonwealth of Massachusetts. William White, Printer, Boston 1-214

Belongs to Apatichnus according to H. Haubold 1971

Sister taxa: none

Type specimen: AC 21/2, a footprint. Its type locality is Ferry above Turners Falls, tracksite, which is in a Hettangian/Sinemurian fluvial-lacustrine sandstone in the Portland Formation of Massachusetts.

Ecology: ground dwelling herbivore