At the same time the discovery of the fossils of many extinct quadrupeds and marine fossils high in the Appalachian mountains taxed the theoretical and explanatory skills of theologians and scientists alike.
(the discovery of the fossils of many extinct quadrupeds and marine fossils; taxed; the theoretical and explanatory skills of theologians and scientists alike; T:the same time)
the discovery of the fossils of many extinct quadrupeds and marine fossils
taxed
the theoretical and explanatory skills of theologians and scientists alike T:the same time