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38 Cards in this Set
- Front
- Back
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Iguanodon |
First described herbivores and was discovered by George Mantell |
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Deinosuchus |
Giant crocodile that preyed on unsuspecting dinosaurs and the reason they were giant is because they extended their growth phase |
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Stegosaurus |
Much debate on the arrangement of their plates |
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Pachycephalosauria |
Skulls were first identified as kneecaps and are very thick, bowling ball like and were used for head/flank butting |
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Ceratopsians |
Inspired the Greek mythological creature "Griffin" |
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Supersaurus |
Type of diplodcid (sauropods) that were 140 ft long and can not fit inside Ruby Diamond |
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Oviraptor |
Very confusing skulls and their mouths were on the right side of their head. "Egg stealers" |
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Thomas Jefferson |
Fossil fanatic |
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Reverend William Buckland |
Named first dinosaur which was the Megolasurus |
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Cuvier |
Came up with the idea of extinction |
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Richard Owen |
Gave dinosaurs their name |
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Joseph Leidy |
Proposed that dinosaurs are bipedal |
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John Ostrom |
Discovered Deinonychus which countered popular belief that dinosaurs were slow, sluggish creatures
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Robert Bakker |
Student of Ostrom, he stated that dinosaurs were more like birds and mammals than previously thought. This sparked the dinosaur renaissance. |
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When did dinosaurs become extinct? |
65.54 million years ago |
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When did the dinosaur renaissance start? |
1964 |
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when did the first dinosaurs appear? |
238 million years ago |
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what is uranium 235 used for? |
Dating the age of dinosaur fossils |
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what is the name of the tallest dinosaur and how tall is it? |
Sauropseidon; 56 ft tall |
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How much did the smallest dinosaur weigh? |
7 ounces |
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What is the bite force of crocodiles? |
3700 ibs |
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What dinosaur's fossils were bombed and when? |
Steinosaurus; WWII |
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Volcanism |
A lot of volcano activity during this time led to ashy soot that filled the sky and changed the climate. Evidence of this in Deccan Basalts |
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Sea-levels |
sea-levels lowered drastically creating major ecological changes. Evidence: Seaway sediment distribution |
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Asteroid |
6 mile wide asteroid struck the Gulf of Mexico. Evidence: Materials such as iridium and osmium which are usually found in space rocks can be found in ash layers in the KT boundary (most popular) |
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What is the problem with extinction theories? |
They can not explain why some animals (birds, mammals, amphibians, and reptiles) survived and others (dinosaurs) did not. |
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Where is the closest place to Florida that fossils can be found? |
Georgia |
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What type of rocks are fossils most commonly found in? |
Sedimentary rocks |
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How can you tell if a fossil is a dinosaur? |
-3 or more sacral vertebrae -3 main fingers -Perforate Acetabulae |
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How do find out the age of a fossil? |
Use the half-life of uranium 235 |
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How can you tell whether a fossil is Ornithischia or Saurischia? |
-Ornithischia: T-Shaped -Saurischian: A-shaped |
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How can you tell the sex of a dinosaur? |
Can not determine sex |
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Sexual Dimorphism |
Size differences between males and femals |
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How can you tell the dissipation of force? |
Finite Element Modeling |
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How can you tell how smart a dinosaur was? |
By looking at the endocast which shows how large the brain was |
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Encephalization Quotient |
Measure of brain size relative to body mass. Also helps determine how intelligent dinosaurs were |
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How can you tell what a dinosaurs diet was like? |
By examining its coprolites (fossilized fecies) |
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What is oversplitting? |
Giving one species too many names because you think they are different. |
