Outline: a typical ankylosaur
Propanoplosaurus
"before Panoplosaurus"
Type species Propanoplosaurus marylandicus
- Lived
- 120 to 113 million years ago, Early Cretaceous
- Diet
- Herbivore
- Group
- Ankylosaurs, Nodosauridae
- Found in
- United States
- Named by
- Stanford et al. 2011
Where its fossils were found
The evidence
Today
115 million years ago
Field notes
About Propanoplosaurus
What it was like
Propanoplosaurus is known from the natural cast of a baby nodosaur, a young armored plant eater only a little longer than a human hand. It was found as an impression in rock, with the shape of its skull and body.
Its world
It lived in the Early Cretaceous, in what is now Maryland. It comes from the Patuxent Formation, which also preserves many dinosaur footprints.
How it was found
Stanford and colleagues named Propanoplosaurus in 2011. The type species is Propanoplosaurus marylandicus. It is one of the youngest nodosaurs ever found.
Close relatives
Other members of Nodosauridae
Sources: WikidataNamed in: R. Stanford, D. B. Weishampel, and V. B. Deleon. 2011. The first hatchling dinosaur reported from the eastern United States: Propanoplosaurus marylandicus (Dinosauria: Ankylosauria) from the Early Cretaceous of Maryland, U.S.A. Journal of Paleontology 85(5):916-924