Question 1

How do you say Protohadros?

Accepted Answer

You say it like this: PROH-toh-HAD-ros. Break it into four chunks: PROH, then toh, then HAD, then ros. The stress lands on the first syllable and again on HAD. A good memory trick is to think of it as 'PRO toe HAD russ,' like you are saying 'pro' as in professional, then 'toe,' then 'had,' then 'russ.' Once you say it a couple of times it rolls off the tongue pretty naturally.

Question 2

What does Protohadros mean?

Accepted Answer

Protohadros means something like 'first hadrosaur' or 'earliest duck-billed dinosaur.' The word proto comes from the Greek word protos, meaning first or original, and hadros comes from the Greek word for bulky or robust, which is also the root of the word Hadrosaur. So the full name is basically the scientist's way of saying this animal was at the very beginning of the duck-bill family. The species name byrdi honors Gary Byrd, the amateur fossil hunter who found the bones in 1994.

Question 3

How big was Protohadros?

Accepted Answer

Protohadros was a pretty big animal, estimated at roughly 20 to 25 feet long, which is about as long as two cars parked bumper to bumper. It probably weighed somewhere between 2,000 and 3,000 pounds, heavier than a large horse. It was not the biggest hadrosaur ever, but for an early member of the group it was solidly built and quite robust, which fits with the meaning of its name.

Question 4

What did Protohadros eat?

Accepted Answer

Protohadros was a herbivore, meaning it only ate plants. It used its broad, flat, duck-like beak to crop and strip vegetation like leaves, ferns, and stems. Its teeth were more primitive than those of later hadrosaurs, which had incredibly efficient dental batteries for grinding tough plant material. Scientists think Protohadros may have been a less selective feeder because of this, eating a wider variety of plants in its coastal Texas environment.

Question 5

Where did Protohadros live?

Accepted Answer

Protohadros lived in what is now the state of Texas, specifically in the area around Denton County near a town called Flower Mound. About 93.9 million years ago, that region was a warm, humid coastal zone right at the edge of an ancient inland sea called the Western Interior Seaway, which split North America in two during the Cretaceous period. The fossils come from a rock layer called the Woodbine Formation, which also preserves marine fossils like shark teeth.

Question 6

Is Protohadros really the first hadrosaur?

Accepted Answer

That is actually a question scientists still debate. When paleontologist Jason Head named it in 1998, he argued it was one of the most primitive, or basal, hadrosaurs known from North America, and at roughly 93.9 million years old it is certainly very ancient. However, some researchers have since questioned exactly where it sits on the hadrosaur family tree, and whether it truly represents the origin of the group or a specialized early branch. It is one of the reasons Protohadros is genuinely interesting to paleontologists, not just kids.

Question 7

Who found Protohadros?

Accepted Answer

The fossils were first discovered in 1994 by Gary Byrd, an amateur fossil hunter, in Denton County, Texas. Byrd spotted the bones eroding out of rocks in the Woodbine Formation near Flower Mound. Paleontologist Jason Head then formally described and named the dinosaur in 1998. As a tribute to Byrd's discovery, Head named the species Protohadros byrdi, so Gary Byrd's name will be permanently attached to this dinosaur in scientific history.

Question 8

Was Protohadros related to T. rex?

Accepted Answer

Not closely. Protohadros belonged to a completely different major group of dinosaurs called Ornithischia, the bird-hipped dinosaurs, while T. rex was a Saurischian dinosaur, part of the lizard-hipped group. Protohadros was a plant-eater in the hadrosaur family, while T. rex was one of the greatest predators that ever lived. They were both Cretaceous dinosaurs, but about as related to each other as a cow is to a crocodile.

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