Front row, from left: Max, Prescott, Eric, Gus, Sam, Lillien. Second
row: Larry Witmer, Elijah, Iris, M'Kinzy, Sidney, Will, Josh, Emma.
Third row: Lyman. Back row standing: Eric Snively, Madeleine Ray,
Adam Krause, William Porter, Jason Bourke, Cheyenne Romick, Ryan
Ridgely, Dave Dufeau, Ashley Morhardt
Guide to the Dinosaurs of the WitmerLab
The Young Scholars OHIO program, in conjunction with the
Office of Nationally
Competitive Awards and the
College, brought about 48 profoundly gifted students from
17 states across the country to Ohio
University for a range of enrichment programs. WitmerLab
hosted 15 of these students, aged 6Ė11, on 2 May 2011 for a
workshop wherein the students worked with the 70+
dinosaur skull casts in the lab and WitmerLab staff and
students to learn how paleontologists "flesh out"
out the past. In addition to discovering the diversity
and drama of dinosaur evolution, the students created
this Field Guide to the Dinosaurs of the WitmerLab. A
more complete photo gallery to our dinosaur skull cast
collection can be found on our
WitmerLab Collection page.
This video ran on the lab big-screen during the
Elijah & Tyrannosaurus rex
That dinosaur, the
Tyrannosaurus rex, when it was in the
museum, was leaning from one side but it didnít
look like it was leaning at all. In the
microscope, I saw a tooth of that dinosaur and
it was cool! It ate other dinosaurs. It was a
meat eater. It was a carnivore. It had a big
head and little arms. Its teeth were sharp!
Thatís all for now.
Camarasaurus looked a lot like
Brachiosaurus, but they were slightly
smaller. The Camarasaurus laid its eggs
in lines instead of nests. I think this is
interesting because if the eggs where all
clumped together then...it would be easier for
predators to get them. I could know if a
Camarasaurus was female or male from the
pelvis bone. If it was a female the side divots
would be wide, and if it was a male the side
divots would be narrower. You could tell how old
it was when it died and how it died by seeing
how big and wide the bones are.
rex has been my favorite dinosaur in this
entire session. The tyrannosaurus rex was a
carnivore and the head was HUGE his teeth are
really big. And in the jars my favorite animal
was the platypus. And me and my buddy (Iris) had
liked most of the same dinosaurs. This is the
BEST dinosaur lesson EVER!!. There are
alligators in jars.
Gus & Majungasaurus
Iris & T. rex
Bagaceratops are related to
Triceratops and Protoceratops.
Bagaceratops do not have a frill.
Bagaceratops are herbivores. Bagaceratops
have shearing teeth. (they cut their food like
scissors instead of chewing it) Bagaceratops
means Small Horned Face. Baga means small
and Ceratops means horned face.
Bagaceratops are about one meter long, fifty
centimeters tall, and fifty pounds.
Bagaceratops belong to the Ceratopsia, a
family of small beaked herbivores from the
Majungasaurus was a Cretaceous predator
known for its odd facial markings which were
large bumps and a crest or horn in the center of
its forehead. Majungasaurus once lived in
Madagascar a small island off Africa,
Majungasaurus was a primary predator. It
used its strength speed and unusually large
brain too find prey the Majungasaurus met
itís end at the end of the Cretaceous.
T. rex is a carnivore, has feet like
springs, and huge teeth for ripping meat. Tons
of blood vessels and nerves go through foramina
and around gums.
Lillien & Edmontosaurus
My favorite dinosaur is the Velociraptor
some facts are. They lived 75-71 million years
ago. Iím interested in Velociraptor
because they're small and they were deadly. The
Velociraptor had feathers not scales.
Velociraptors did not fly. I also like them
because they're meat eaters.
The post-orbital recess in the Edmontosaurusí
skull was probably formed for the convenience of
sight, probably containing a nest of blood
vessels that could regulate heat and waste from
the eye. The recess could also contain lachrymal
glands, and would help regulate the eye.
Camarasaurus is a herbivore. It lived
about 155-145 million years ago. Camarasaurus
was a little smaller than a Brachiosaurus.
It ate lot a lot of plants, lived in herds, and
ate tropical plants. Resource:
M'Kinzy & T. rex
I do not like carnivores but I like herbivores.
Triceratops is my favorite dinosaur.
Stegosaurus is my second favorite dinosaur.
I like herbivores since they donít eat meat.
T. rex has a relatively small brain
capacity. The brain is about the size of an
octopus. Most of the brain was devoted to
smelling. This was about half the size of the
thinking part. The teeth are sharp which means
that it ate meat. The increased smelling
probably allowed them to smell their prey. The
teeth didnít have chewing parts so they
swallowed food whole. They walked and ran, but
if they fell they couldnít get up and they died.
Allosaurus means different lizard. It was
the t-rex off its time. It was different because
it has horn things above its eye that they
probably used it to keep the sun out of its
Sidney & Edmontosaurus
& Tyrannosaurus rex
Bagaceratops is special because of its
size. It can fit on your finger. It is related
to Triceratops. It is the smallest
dinosaur I know about. I've only seen the skull
of the Bagaceratops. Bagaceratops
means "small-horned face". Bagaceratops
lived in a place that is now Mongolia about 80
million years ago. It weighed as much as I do!
It had a small horn on its nose and a small
frill on its neck. It had a beak for grabbing
food. Bagaceratops ate plants. I like
Bagaceratops because of its size and weight.
Edmontosaurus is a hadrosaur herbivore.
It lived in the Cretaceous period. It resembles
a platypus for itís large beak. I like it
because it was a herbivore. Herbivores are
eco-friendly because they eat a renewable source
and are almost the only diet of carnivores.
T. rex was living in the Cretaceous
period. It was a big carnivore. When it was
young it had teeth for cutting meat [and Ryan]
when its older its teeth where for crushing
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