Dinosauria › Ornithischia › Ankylosauria › Nodosauridae
Polacanthus
Polacanthus foxii Grabau 1921
Early Cretaceous (Albian) · 139.1–100.5 Mya
Key Statistics
Diet
herbivore
Locomotion
quadrupedal
inferred from clade
Overview
Polacanthus foxii is an ankylosaur dinosaur known from the Early Cretaceous, roughly 139.1–100.5 million years ago. It was a herbivore. It was named by Grabau 1921. The species is represented by 5 recorded occurrences in the Paleobiology Database.
Fossil Record Completeness
How much of this profile is grounded in the fossil record
~18%
fragmentary record
Confirmed
Inferred
Based on 5 recorded occurrences in the Paleobiology Database.
Geologic Time
Where Polacanthus sits in deep time
Polacanthus
252 Mya201 Mya145 Mya66 Mya
Relationships
Part of a wider fossil web
These species share Polacanthus's place in deep time — computed from overlapping age ranges, shared clades, and inferred ecology.