Therizinosaurus cheloniformis

Part of the CRESTS & HERBIVORES Exhibit

Late Cretaceous Period, approx. 70-66 million years ago

1:2 Scale Skull Replica

SPECIMEN PROFILE

Therizinosaurus cheloniformis was a highly unusual theropod dinosaur inhabiting the floodplains and forested environments of Late Cretaceous Asia. Although descended from carnivorous theropod ancestors, it evolved into a large-bodied herbivorous or omnivorous form with anatomy unlike nearly any other dinosaur lineage.

Its most striking feature was the enormous forelimb claws, among the longest known in any terrestrial animal. Rather than serving primarily as predatory weapons, these claws were likely adapted for pulling vegetation, display behavior, and defense. Therizinosaurus also possessed a broad torso, elongated neck, and relatively small skull suited for browsing vegetation. Combined with probable feather covering and upright posture, its anatomy reflects one of the most dramatic evolutionary departures within theropod dinosaurs.

COLLECTOR & CURATOR NOTE

A bizarre and highly specialized theropod defined by its immense scythe-like claws—representing one of the most extreme evolutionary transformations from carnivorous ancestry to herbivorous adaptation.

CONSTRUCTION & DISPLAY

Scale

• 1:2, approx. 9.8 in or 25 cm

Fossil Finishes

• Aged Bone: A weathered bone-white aesthetic, evoking exposed skeletal remains and museum restorations.

• Canyon: Warm earth tones and terracotta hues, inspired by fossil beds such as Picketwire and Mill Canyon.

• Fossilized: Deep browns and near-black coloration, replicating the mineral-rich preservation seen in authentic fossil specimens.

Specimen Format

• Unmounted study specimen: A standalone skull, ideal for shelves, cases, or custom display setups.

• Desktop-mounted display specimen: Presented on a handmade desktop stand, crafted from wood with brass furnishings and a custom specimen placard — designed to elevate the specimen as a true exhibit piece.

Medium

• Hand-painted resin