Fauna
Species

Polacanthus foxii

Polacanthus foxii

Polacanthus foxii roamed the subtropical floodplains of Early Cretaceous England, heavily protected by rows of sharp spines lining its shoulders and a fused bony shield across its hips. Unlike club-tailed ankylosaurids, this nodosaurid relied entirely on passive defense and low-slung stability to deter hunting theropods. It browsed tough, low-growing vegetation such as ferns, bennettitaleans, and cycads using small, leaf-shaped teeth.

ArmoredHerbivore
—observations
—countries
—peak records
ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Diet & preyFern foliage, Cycad fronds, Equisetum shoots
Predators
  • Neovenator salerii
  • Baryonyx walkeri
  • Eotyrannus lengi
ThreatsTheropod predation; habitat loss during Cretaceous marine transgressions
HabitatsEarly Cretaceous coastal floodplains and river valleys
Life spanEstimated 20–30 years
  1. FamilyNodosauridae
  2. SpeciesPolacanthus foxii
Range data is not available yet.
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Extinct prehistoric species known only from fossil remains.
Responsible observation
  • Museum Study: Examine authentic fossil scutes and mounted skeletal casts at major natural history museums.
  • Field Paleontology: If exploring exposed coastal strata such as the Isle of Wight, leave any discovered fossils in place and notify local authorities.
Help improve the field guideSomething wrong?

Report a name, category, or profile issue for review.

Checking your Fauna account…