Corythosaurus - Dinosaurs A-Z
In Wisconsin, United States
How Geocaching Works
Use of geocaching.com services is subject to the terms and conditions in our disclaimer
Corythosaurus - Dinosaurs A-Z
Dinosaurs A-Z will introduce you to some unique dinosaurs. I'm a big dinosaur fan and have read and researched many dinosaurs. Corythosaurus is the third in my collection of dinosaur geocaches.
A genus of duck-billed dinosaur from the Upper Cretaceous Period, about 77-76.5 million years ago. It lived in what is now North America. Its name means "helmet lizard", from the Greek κορυθως/korythos meaning "helmet" and σαυρος/sauros meaning "lizard", because the crest shape resembled a Corinthian soldier's helmet
Baryonyx is one of the few known piscivorous (fish-eating) dinosaurs, with specialized adaptations like a long low snout with narrow jaws filled with finely serrated teeth and gaff-hook-like claws to help it hunt its main prey..
Corythosaurus is classified as a hadrosaurid, in the subfamily Lambeosaurinae. It is related to other hadrosaurs such as Hypacrosaurus, Lambeosaurus and Olorotitan, with the exception of Olorotitan they all share similar looking skulls and crests. However, recent research has suggested that Olorotitan is Corythosaurus closest known relative even though it doesn't share as many skull characteristics as other lambeosaurs.
Corythosaurus weighed in at 4 tonnes and measured roughly 10 metres (33 ft) from nose to tail. Like other hadrosaurs it had a toothless beak, the back of the jaws contained a dental battery composed of hundreds of small, interlocking teeth. These were used to crush and grind plant matter and were continually replaced as they wore away.
Over 20 skulls have been found from this dinosaur. As with other lambeosaurs, the animal bore a tall, elaborate bony crest atop its skull, which contained the elongate nasal passages. The nasal passages extended into the crest, first into separate pockets in the sides, then into a single central chamber and onward into the respiratory system.
Any vocalization would travel through these elaborate chambers, and probably get amplified. Scientists speculate that Corythosaurus could make loud, low pitched cries "[l]ike a wind or brass instrument." The sounds could serve to alert other Corythosaurus to the presence of food or a potential threat from a predator.
It was once thought that this dinosaur lived mostly in the water, due to the appearance of webbed hands and feet. However, it was later discovered that the so-called "webs" were in fact deflated padding, much like that found on many modern mammals.
Fossils have been found in the upper Oldman Formation and lower Dinosaur Park Formation of Canada.
Comparisons between the scleral rings of Corythosaurus and modern birds and reptiles suggest that it may have been cathemeral, active throughout the day at short intervals
Big enough for travel bugs and tradable items. Pencil included.
Look for the rest of the "Dinosaurs A-Z" series, "cache them all"
(No hints available.)
Last Updated: on 7/14/2014 7:19:33 PM Pacific Daylight Time (2:19 AM GMT)
Coordinates are in the WGS84 datum