Download - Mya, Katie, Zareille, Keylon, Matthew, Chandler, and Tyshonna October 31, 2013 5 th grade Science Group Project.

Prezentace mya

LECTURE 7: Mesozoic Era 248 mya – 65 mya

MYA: Power Transmission Improvement Project

REPRODUCTIVE CYCLE OF THE SOFT-SHELLCLAM, MYA …MYA ARENARIA, AT SKAGIT BAY, WASHINGTON RUSSELL G. PORTER' ABSTRACT The annual reproductive cycle of the soft-shellclam. Mya arenaria

600 mya = sponges have different tissues 550 mya = flatworm with “eyespots’ 500 mya = first fish 360 mya = reptiles w/lower brains 65 mya =

Crustaceamorph stem line Precambrian (>542 mya) Paleozoic (542-251 mya) Mesozoic (251-65 mya) Cenozoic (65-present) Trilobita Chelicerata Myriapoda Hexapoda.