At the top of the Cambrian Bonanza King Formation of Nevada, the trilobite __________ becomes extinct and the trilobite __________ appears.
A) Tricrepicephalus; Coosella
B) Kingstonia; Kormagnostus
C) Deiracephalus; Carinamala
D) Coosia; Carinamala
Correct Answer:
Verified
Q20: The organism that left tracks on sediment
Q21: The shift toward heavier oxygen and carbon
Q22: The second phase of the great Ordovician
Q23: During Late Cambrian and Early Ordovician, eastern
Q24: During the great mass extinction of Late
Q25: That the concentric layers within Ordovician ooids
Q26: The movement of _ toward the south
Q27: The Taconic orogeny was the result of
Q28: The development of a Late Ordovician ice
Q30: Upper Ordovician sediments across much of Ohio
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