_____ are extinct squidlike cephalopods from the Cretaceous that are excellent guide fossils.
A) Belemnoids
B) Nautiloids
C) Coleoids
D) Oysters
E) Ammonites
Correct Answer:
Verified
Q4: Mountain building in western North America did
Q20: The Gulf of Mexico began to form
Q21: Fault-block basins began to form in eastern
Q22: Graywacke, volcanic breccia, siltstone, black shale, chert,
Q23: The pterosaur adapted to flight with _.
A)a
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
Q27: During the Mesozoic, climatic variation on Earth
Q28: Geologic evidence indicates that more than 25%
Q29: Ammonites of the Mesozoic were characterized by
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