Reptilia - Dinosauria - Grallatoridae

Alternative combinations: Anchisauripus sillimani, Brontozoum sillimanium, Grallator (Anchisauripus) sillimani, Grallator sillimani, Ornithoidichnites sillimani, Ornithoidichnites sillimanii

Synonyms: Anchisauripus dananus Hitchcock 1845, Eubrontes dananus Hitchcock 1845, Otouphepus magnificus Cushman 1904

Belongs to Eubrontes according to E. C. Rainforth 2007

Sister taxa: Eubrontes (Brontozoum), Eubrontes (Ichnites), Eubrontes (Ornithichnites), Eubrontes approximatus, Eubrontes cursorius, Eubrontes euskelosauroides, Eubrontes fieldi, Eubrontes giganteus, Eubrontes glenrosensis, Eubrontes lyellii, Eubrontes tuberatus, Eubrontes veillonensis, Grallator (Eubrontes) divaricatus, Grallator (Eubrontes) platypus, 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 specimens:

• Eubrontes sillimani: AC 9/14, a footprint. Its type locality is quarry west of Middletown, tracksite, which is in a Hettangian/Sinemurian fluvial-lacustrine sandstone/shale in the Portland Formation of Connecticut.
• Anchisauripus dananus: AC 9/14, a footprint. Its type locality is quarry west of Middletown, tracksite, which is in a Hettangian/Sinemurian fluvial-lacustrine sandstone/shale in the Portland Formation of Connecticut.
• Otouphepus magnificus: BSNH 12857, a footprint. Its type locality is Lily Pond Quarry, Gill, which is in a Hettangian fluvial-lacustrine shale/sandstone in the Turners Falls Formation of Massachusetts.

Ecology: ground dwelling carnivore