Portland Formation

Portland Formation Stratigraphic range: Early Jurassic
Type	Geological formation
Unit of	Newark Group
Sub-units	Deerfield Basin, Turners Falls Sandstone & Mount Toby Formation
Lithology
Other	Mudstone, Sandstone, Siltstone, Limestone
Location
Region	North America
Country	USA

The Portland Formation is a geological formation in the northeastern United States. It dates back to the Early Jurassic.

Dinosaur coprolites located in Massachusetts, USA. Ornithischian tracks located in Massachusetts and Connecticut, USA. Theropod tracks located in Massachusetts and Connecticut, USA. Prosauropod tracks located in Massachusetts and Connecticut, USA.

Ammosaurus

A. major

Anchisaurus

A. polyzelus

"Nearly complete skull and skeleton, fragmentary skeleton, adult."

A. solus

Podokesaurus

P. holyokensis

Partial postcranial skeleton.

All known remains of this species have been destroyed.

...
Wikipedia