Term | Definition |
When was the first life form | Precambrian |
When was the first metazoan | precambrian |
When was the first soft body organism | precambrian |
when was the beg of the sauk | precambrian |
when was the first bone tooth and shell | cambrian |
when was the first vertabrate organism | cambrian |
when was the first fish | cambrian |
when was the first mass extinction | ordavician |
when was the first coral | ordavician |
When was the first animal to walk on land | silurian |
when was the first insect | silurian |
when was the first terrestrial plant | silurian |
when was the first coral reef | silurian |
when was the age of the fished | devonian |
when was the first amphibian | devonian |
when was the first reptile | mississippi |
when was the last period that North America was swampy | pennsylvania |
when was the earth arid and dry | permian |
when was the last trilobite | permian |
when was the first mammal | triassic |
when was the first dinosaur | triassic |
when was the sonoman oroginy | triassic |
when was the first modern coral | triassic |
when was the first bird | jurassic |
when was the first flower | jurassic |
when was the navadin aragony | jurassic |
when was the sevier orogeny | cretaceous |
when was the last dinosaur | cretaceous |
when was the first member of the geneous homo | tertiary |
when was the first placental mammal | tertiary |
how old is the earth | 4.54 billion years old |
how old is the universe | 13.77 billion years old |
what was the first orogany uplift of the app mountains | tactonic |
what age was the mesazoic era known as | age of the reptiles |
what was the first orogany uplift of the rocky mountains | antler |
india-asia going together is called | convergent continental |
what period do we live in | quaternary period |
what epoc do we live in | holocene epoc |
what was a marine reptile | ichthyosaur |
what does saurapod mean | lizard foot |
what is it called when organisms can NOT produce internal body heat | ectothermal |