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Dinosaurs In Literature, History and Art: Authenticated Poinsett County Arkansas Corythosaurus/Hypacrosaurus from 400 to 700 Years Ago? ....Page 84

by Chris Parker
Copyright 2008

Suppose that you are an antiquities dealer, specializing in Early American and Native American artifacts such as arrowheads, bowls, flint knives clay effigies etc.. You make a nice living.

Now, suppose that you obtain an artifact (a bowl) that has affixed to it the head of a known dinosaur type. What are your choices?

If you want to sell it, here are your choices: Call it; “bird headed”, “zoomorphic” or “unknown”. You certainly can’t mention that it looks like a dinosaur. Call it that and it becomes a fake—because the artist could not have known anything about dinosaurs 400 to 700 years ago—according to science.

Call it bird-headed and everyone will be happy. Of course, its never going to a museum, it can only go to a private collector. This will always be the case.

So, even though there are in fact many artifacts that would make it clear that these creatures were alive a very short time ago rather than the millions of years science insists, no one, including scientists, Atheists, the general public nor Creationists, knows that this evidence exists.

This artifact is described by the dealer as a bird. It's certainly possible that bird was his best guess.But, what kind of bird? We here at recognize the creature represented by the artifact as a lambeosaurine dinosaur like Corythosaurus or Hypacrosaurus. Many of these artifacts representing dinosaurs have been shown in our Dinosaurs in Literature section.

This item has been authenticated by Jeff Baker of Baker Authentication. Here’s how it is described on its certificate: “Effigy Bowl. Origin: Poinsett County, Arkansas. Measurement: 3” x 5.5 inches. Condition:Excellent. Grade 9.5. Material; Shell Tempered Pottery,

Notation: A middle to late Mississippian artifact suggested to date from 700 to 400 years before present. Description for this type is a miniature size effigy bowl depicting a bird’s head. These types are commonly found along the Tyronza River in Northeast Arkansas. The workmanship is consistent with ancient techniques….”

Here is another artifact from a similar time period in the americas that was also documented and authenticated by scientists.(Previously shown on This crested depiction is of a type of crested dinosaur very similar to the Arkansas artifact.

"Ancient" painting of a type of crested duck-billed dinosaur (lambeosaurus)whose bones have been found in New Mexico (and other places).

Photo from "Clues to the Past", by the Archaeological Society of New Mexico:#16, 1990, edited by Duran and Kirkpatrick. The painting is attributed to the Pueblo 4 culture-AD 1300 to AD


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Comparison of Arkansas artifact with lambeosaurine dinosaur.

Hypacrosaurus is most easily distinguished from other hollow-crested duckbills (lambeosaurines) by its tall neural spines and the form of its crest. The neural spines, which project from the top of the vertebrae, are 5 to 7 times the height of the body of their respective vertebrae in the back, which would have given it a tall back in profile. The skull's hollow crest is like that of Corythosaurus, but is more pointed along its top, not as tall, wider side to side, and has a small bony point at the rear.

Unlike other lambeosaurines, the passages for the airways do not form an S-curve in the crest (at least not in H. altispinus). The animal is estimated to have been around 9.1 meters long (30 feet), and to have weighed up to 4.0 tonnes (4.4 tons).

As with most duckbills, its skeleton is otherwise not particularly remarkable, although some pelvic details are distinctive.

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Comparison of Arkansas artifact with lambeosaurine dinosaurs.

Like other duckbills, it was a bipedal/quadrupedal herbivore. The two known species, H. altispinus and H. stebingeri, are not differentiated in the typical method, of unique characteristics, as H. stebingeri was described as transitional between the earlier Lambeosaurus and later Hypacrosaurus. Photographs of an adult H. stebingeri skull show an animal that looks very similar to H. altispinus.


Corythosaurus meaning 'helmet lizard' because of the shape of its crest (Greek/korythos meaning 'helmet' and sauros meaning 'lizard') was a genus of duck-billed dinosaur from the Upper Cretaceous Period, about 75 million years ago. It lived in what is now North America.

The first specimen was discovered in 1912 by Barnum Brown in Red Deer River, Alberta, Canada. As well as an almost complete skeleton, the find was remarkable because much of the creature's fossilized skin had also survived.

In 1916, the Canadian (Canadian Pacific Lines) ship Mount Temple was carrying two specimens and other fossils from today's Dinosaur Provincial Park, Alberta, Canada to Britain. It was sunk by the German surface raider SMS Moewe, sending its 75 million year old cargo to the bottom of the North Atlantic, where it rests to this day.

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Comparison of Arkansas artifact with lambeosaurine dinosaur skull.

There were originally up to seven species described including C. casaurius, C. bicristatus, C. brevicristatus, C. excavatus, C. frontalis, and C. intermedius. In 1975 Peter Dodson studied the differences between the skulls and crests of different species of lambeosaurine dinosaurs. He found that the differences in size and shape may have actually been related to the gender and age of the animal. Now only one species is recognized, C. casuarius.

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