Research in the 1990s revealed an arched nasal crest thought to be distinctive of the
hadrosaurid Gryposaurus.
A
hadrosaurid vertebra was recovered during a palynological survey of the Upper Cretaceous Kanguk Formation in the eastern Canadian Arctic.
Detailed study of the skeleton of "Joe" identified it as the most complete specimen yet known for Parasaurolophus (pronounced PAIR-uh-SORE-AH-luf-us), a duck-billed (
hadrosaurid) dinosaur that lived throughout western North America around 75 million years ago.
Woodbine outcrops along Bear Creek near the south entrance to Dallas-Fort Worth International Airport have produced crocodilian, theropod, nodosaurid and
hadrosaurid remains (Lee 1997).
Today I'm enquiring about a 90m-year-old
Hadrosaurid Egg from China.
Morphometric observations on
hadrosaurid ornithopods.
This finding has confused him because evidence suggests that hypacrosaurs and other members of the
hadrosaurid family apparently nurtured their young.
A
Hadrosaurid (Dinosauria: Ornithischia) from the Late Cretaceous (Campanian) Kanguk Formation of Axel Heiberg Island, Nunavut, Canada and Its Ecological and Geographical Implications.
The pair discovered tooth marks on a femur bone from a Champsosaurus, an aquatic reptile that grew up to five feet long; the rib of a dinosaur, most likely a
hadrosaurid or ceratopsid; the femur of another large dinosaur that was likely an ornithischian; and a lower jaw bone from a small marsupial.