Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
Paleontologist
|
scientist who studies fossils
|
|
|
Iquanodon
|
first dinosaur ever found
|
|
|
Odon
|
greek word for tooth
|
|
|
Hypothesis
|
a likely explanation of a problem
|
|
|
dinosaur
|
terrible lizard
|
|
|
fossils
|
any remains or trace of a once-living thing
|
|
|
Geologic time scale
|
a time scale that shows the history of the Earth and what lived when
|
|
|
Precambrian time
|
time unit from the formation of Earth to 570 million years ago, in which ocean animals developed
|
|
|
Paleozoic Era
|
from 570 million years ago to 270 million years ago, during which fish thrived
|
|
|
Mesozoic Era
|
from 250 to 60 million years ago during which reptiles were the main life form
|
|
|
Cenozoic Era
|
65 million years ago to present, when recent life evolved on Earth
|
|
|
vertebrates
|
an animal with a backbone
|
|
|
extinct
|
a species that no longer exists
|
