lab exam 1 Flashcards
when did the origin of earth occur
4.6 billion years aga
when did the oldest fossils of cells (prokaryotes) appear
3.5 billion years ago
oldest fossils of eukaryotic cells appear
1.8 billion years ago
when did and what period did diverse algae and soft-bodied invertebrate animals appear
635 - 542 million years ago, the Ediacaran period
when did and what period did a sudden increase in diversity of many animal phyla (Cambrian explosion)
542 - 488 million years ago, The Cambrian period
when did and at what period did marine algae abundant; colonization of land by diverse fungi, plants, and animals
488 - 444 million years ago, the Ordovician period
when did and what period did the diversification of bony fishes; tetrapods and insects appear
416 - 359 million years ago, the Devonian period
when did and what period did the extensive forests of vascular plants form; first seed plants appear origin of reptiles; amphibians dominant
359 - 299 million years ago, the Carboniferous period
when did and what period did the radiation of reptiles occur
299 - 251 million years ago, the Permian period
when did and what period did dinosaurs evolve and radiate, origin of mammals
251 - 199.6 million years ago, the Triassic period
when did and what period did the flowering plants (angiosperms) appear, dinosaurs becomes extinct at end of period
145.5 - 65.5 million years ago, the cretaceous period
when did and what period did major radiation of mammals, birds and pollinating insects occur
65.5 - 55.8 million years ago, the Paleocene period
when did and what period did the origins of many primate groups occur.
33.9 - 23 million years ago, the Oligocene period
when did and what period did the origin of genus Homo occur
2.6 - 0.01 million years ago, the Pleistocene period
what phylum does Trilobites belong to
phylum Arthropoda
