Which type of sediment is made up mainly of the shells of diatoms and radiolarian

The type of sediment that is made up mainly of the shells of diatoms and radiolarians are called the siliceous ooze. Siliceous ooze is a siliceous pelagic sediment that covers large areas of the deep ocean floor. Calcareous ooze, siliceous ooze is formed from the tests of microorganisms; in the case of siliceous ooze, the organisms come in two varieties, diatoms and radiolarians.

Be sure to give me a thanks!

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.