Reptilia - Dinosauria - Grallatoridae

Alternative combinations: Amblonyx giganteus, Eubrontes platypus

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 Grallator (Eubrontes) according to P. E. Olsen and P. M. Galton 1984

Sister taxa: Eubrontes (Brontozoum), Eubrontes (Ichnites), Eubrontes (Ornithichnites), Eubrontes approximatus, Eubrontes cursorius, Eubrontes euskelosauroides, Eubrontes fieldi, Eubrontes giganteus, Eubrontes glenrosensis, Eubrontes lyellii, Eubrontes sillimani, Eubrontes tuberatus, Eubrontes veillonensis, Grallator (Eubrontes) divaricatus, Brontozoum expansum, Brontozoum thianschanicum, Grallator emeiensis, Grallator (Grallator), Grallator damanei, Grallator matsiengensis, Grallator molapoi, Grallator graciosus, Grallator rectilineus, Grallator minor, Grallator crassidigitus, Grallator palmipes, Grallator palustris, Grallator lambereshei, Grallator morijensis, Grallator moshoeshoei, Grallator princeps, Grallator limnosus, Grallator cuneatus, Grallator formosus, Grallator gracilis, Grallator sulcatus, Grallator tenuis, Grallator maximus, Grallator olonensis, Grallator variabilis, Grallator (Anchisauripus) hitchcocki, Grallator (Anchisauripus) minusculus, Anchisauripus tuberosus, Anchisauripus australis, Anchisauripus exsertus, Anchisauripus gwyneddensis, Anchisauripus minor, Anchisauripus milfordensis, Anchisauripus poolei, Anchisauripus bibractensis, Anchisauripus thomasi, Fulicopus minor, Gigandipus caudatus, Otouphepus declivis

Type specimen: AC 13/4, a footprint. Its type locality is below Turners Falls, tracksite, which is in a Hettangian/Sinemurian fluvial-lacustrine sandstone/shale in the Portland Formation of Massachusetts.

Ecology: ground dwelling carnivore