Which of these was the dominant plant group at the time that dinosaurs were the dominant animals?
a. bryophytes
b. charophyceans
c. angiosperms
d. gymnosperms
e. seedless vascular plants

c. angiosperms

Explanation: Most of the dinosaurs that existed in the late Cretaceous period, when flowering plants supplied plant-eating dinosaurs like the hadrosaurs with nutritious food. Angiosperms such magnolias, palms, laurel, early sycamores and barberry existed and supplied the dinosaurs the nutrients they required to survive.

Angiosperms

Explanation:

angiosperms or flowering plants developed during the Early Cretaceous about the same time dinosaurs were the dominant animals. They were really fast-growing and adaptable that many dinosaurs fed on them during the end of Cretaceous, also they could deliver nutrient-rich tissues at a faster rate than other plants.

the denominator has a very specific role.

the answer you are looking for is the united states forest service.

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