Dinosaur Footprint (Positive/Negative) Grallator sp. Early Jurassic Portland Formation...

Dinosaur Footprint (Positive/Negative) Grallator sp. Early Jurassic Portland Formation Kornell Nash Quarry, South Hadley, Massachusetts, USA This split positive/negative set of Dinosaur footprints represents the ichnogenus variety Grallator and fits perfectly together. Known only from trace fossils like footprints, the type of theropod has a three-toed "foot" and lived during the Jurassic. This fossil pairing out of the iconic locality in Massachusetts displays incredible detail, and the enhanced prints have nice contrast against their mottled matrix backgrounds. The matched set is impressive and collectible, representing finer material from one truly iconic locality. Overall Measurements: 8.66 x 6.22 x 0.83 inches (22.00 x 15.80 x 2.10 cm) HID09710052018 © 2022 Heritage Auctions | All Rights Reserved