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Question
Read the passage and answer the following question.
This chart shows the relative abundance of different groups of echinoderms throughout geologic time. The width of the band indicates the number of species for each group.
Identify the time periods showed a boom in all echinoderm groups?
Read the passage and answer the following question.
This chart shows the relative abundance of different groups of echinoderms throughout geologic time. The width of the band indicates the number of species for each group.
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Solution
The correct option is C Mississippian
In 1869, American geologist Alexander Winchell coined the name Mississippian in 1869 for rock outcrops along the drainage basin of the Mississippi River. At the beginning of the Mississippian, shallow seas covered large parts of the continents. Large amounts of limestone were deposited in these shallow seas, preserving the skeletons of diverse marine invertebrates. Also at this time, Earth was in a greenhouse climate state with relatively warm temperatures across a wide range of latitudes. The tropical seas were home to a great diversity of marine life, including many different kinds of fishes, brachiopods, bryozoans, mollusks, and echinoderms.
In 1869, American geologist Alexander Winchell coined the name Mississippian in 1869 for rock outcrops along the drainage basin of the Mississippi River. At the beginning of the Mississippian, shallow seas covered large parts of the continents. Large amounts of limestone were deposited in these shallow seas, preserving the skeletons of diverse marine invertebrates. Also at this time, Earth was in a greenhouse climate state with relatively warm temperatures across a wide range of latitudes. The tropical seas were home to a great diversity of marine life, including many different kinds of fishes, brachiopods, bryozoans, mollusks, and echinoderms.
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