Using fossils & the fossil record 0.0 / 5 ? GeologyGeologyASWJEC Created by: evieseymourCreated on: 14-01-19 09:39 Define 'extant'? organisms that are still alive today 1 of 10 Define 'extinct'? organisms that are no longer alive today 2 of 10 What is a death assemblage? collection of fossils found in different place/position that they lived in. 3 of 10 what is a life assemblage? collection of organisms found in the same place/position in which they lived. 4 of 10 What are the different types of organisms that lived in the water column? Benthonic & Pelagic 5 of 10 What different Pelagic organisms are there? - nectonic (swimmer) -planktonic (floater) 6 of 10 What different types of Benthonic organisms are there? -epifaunal (burrrower) - infaunal (crawler) 7 of 10 What is a 'zone fossil'? Fossils used to date rocks 8 of 10 What do zone fossils need to have/be? -easily identifiable -geographically widespread -fast evolutionary change 9 of 10 what is a derived fossil? an old fossil preserved with younger forms. 10 of 10
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