Any kind of marine environment, from reefs to deep in the oceanMostly on land except for reproductive purposesUnderwater but only up to depths of 100 m
370 million years ago415 million years ago520 million years ago
Eyes on your head and greater neck motilityHard shells and segments, including antennaeBeautiful spiraled chambers and tentacles
By producing strong supporting evidence of continental driftBy being an excellent guide fossil for stratigraphy through your ability to evolve rapidlyBy being key in the shift of animals from water to land
Which Fossil Are You?
You are one of the earliest known groups of arthropods, prevalent during the early Cambrian period.
You are the free-swimming mollusks of the ancient oceans, first appearing on Earth 415 million years ago.
You are an early amphibian, evolving from fish late during the Carboniferous period.