Multiple Choice
A fossil shell is filled with mud. The shell dissolves, leaving an impression of its inside surface on the shell- filling lump of mudstone. What type of fossil is this?
A) an external cast
B) an original hard part
C) a carbonized impressionist film
D) an internal mould
Correct Answer:

Verified
Correct Answer:
Verified
Q105: Which of the following is a microcrystalline
Q106: What does the degree of rounding indicate
Q107: What are the most common cementing agents
Q108: Fossilization by_ preserves the most delicate structures
Q109: Which of the following is not a
Q111: Which of the following describes the correct
Q112: Which limestone consists mainly of tiny, marine
Q114: Which characteristic is absolutely necessary for a
Q115: What kind of rock are most dripstones
Q123: What are the chemical, physical and biologic