Uncovering Virginia: Grundy Rocks To the right of the case containing the plant fossils is a model of a cross-section from the quarry in Grundy. You’ll notice a siltstone, coal seam, and a mudstone. What feature do you notice at the top of the cross section? What does it indicate? (Be as specific as possible.) Uncovering Virginia: Chippokes Rock Dating As you look at the rock units displayed in this exhibit you’ll notice at the top of each section is an arrow pointing out gaps in time. What is the name of this type of unconformity? What could have caused these gaps in time? Great Hall, Hahn Hall, Uncovering Virginia: Solite, Carmel Church, and Saltville Evolution You learned about two important patterns in evolution, namely convergent evolution and homologous structures. If you recall, convergent evolution occurs when unrelated organisms have similar looking body plans that evolved completely independently of one another. One example has been the evolution of flight. There are examples at the museum of at least three type of organisms that evolved the capability of flight, yet are completely unrelated to one another. Find an example from at least two groups of fliers and write them down. You get extra credit if you find all three. (We will discuss in class what their various ancestors were.)
Uncovering Virginia: Grundy Rocks To the right of the case containing the plant fossils is a model of a cross-section from the quarry in Grundy. You’ll notice a siltstone, coal seam, and a mudstone. What feature do you notice at the top of the cross section? What does it indicate? (Be as specific as possible.) Uncovering Virginia: Chippokes Rock Dating As you look at the rock units displayed in this exhibit you’ll notice at the top of each section is an arrow pointing out gaps in time. What is the name of this type of unconformity? What could have caused these gaps in time? Great Hall, Hahn Hall, Uncovering Virginia: Solite, Carmel Church, and Saltville Evolution You learned about two important patterns in evolution, namely convergent evolution and homologous structures. If you recall, convergent evolution occurs when unrelated organisms have similar looking body plans that evolved completely independently of one another. One example has been the evolution of flight. There are examples at the museum of at least three type of organisms that evolved the capability of flight, yet are completely unrelated to one another. Find an example from at least two groups of fliers and write them down. You get extra credit if you find all three. (We will discuss in class what their various ancestors were.)