ammonites
Hoplichnus quadrupedans Hitchcock 1848 (vertebrate)

Triploblastica - Vertebrata

Synonym: Hoplichnus poledrus Hitchcock 1858

Full reference: E. Hitchcock. 1848. An attempt to discriminate and describe the animals that made the fossil footmarks of the United States, and especially of New England. Memoirs of the American Academy of Arts and Sciences, new series 3:129-256

Belongs to Hoplichnus according to R. S. Lull 1904

Sister taxon: Hoplichnus equus

Type specimens:

  • Hoplichnus quadrupedans: AC 29/3, 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.
  • Hoplichnus poledrus: AC 36/1, 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: