Fault-block basins began to form in eastern North America during the ____.
A) late Triassic
B) early Jurassic
C) late Jurassic
D) early Cretaceous
E) late Cretaceous
Correct Answer:
Verified
Q4: Mountain building in western North America did
Q16: Geologists have a very good record of
Q17: Triassic land-plant communities were significantly different than
Q18: Cycads evolved during the Triassic.
Q20: The Gulf of Mexico began to form
Q22: Graywacke, volcanic breccia, siltstone, black shale, chert,
Q23: The pterosaur adapted to flight with _.
A)a
Q24: _ are extinct squidlike cephalopods from the
Q25: Which characteristic sets dinosaurs apart from reptiles?
A)teeth
Q26: All modern reptiles are _.
A)ectotherms
B)endotherms
C)echinotherms
D)unitherms
E)antitherms
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