Question

Which fossil record would likely show more diversity in-living organisms of marine organisms?

Answer 1

The marine fossil record likely shows more diversity in environments with detailed fossilization over extended geologic periods, especially during times of increased richness from the Cambrian to mid-Devonian and from the late-Triassic to present, due to life originating in the sea and the detailed nature of marine fossilization.

Step-by-step explanation:

The fossil record of marine organisms would likely show more diversity in environments where there is a prolonged and detailed record of fossilization over geological time periods. The most reliable data in the fossil record are for marine invertebrates, which have undergone a significant rise in diversity, with fluctuations due to mass extinctions and stasis periods throughout Earth's history. A diverse fossil record will likely be found in periods where there is an increase in richness such as from the Cambrian to the mid-Devonian, and from the late-Triassic to the present day, based on standardized sampling analyses.

Additionally, the geologic record indicates that most of the species that have ever existed are extinct, with marine systems showing a greater number of higher taxa, likely due to life originating in the sea. A marine paleoenvironment with a high diversity of fossils would suggest a rich and varied ecosystem with many different species. The presence of certain fossils like brachiopods and members of the rugosa can help narrow down the age of these diverse marine paleoenvironments.

Answer 2

The correct answer is desert-dwelling species.

Step-by-step explanation:

Any preserved remains, trace or impression of anything, which was once living in the past is termed as a fossil. The examples of fossils comprise stone imprints of microbes or animals, bones, exoskeletons, shells, coral, remnants of DNA, the substances getting preserved in amber, and others.

For the formation of fossils, the most essential condition is decomposition that takes place gradually, that is, at a slow pace. Thus, places like wet marshy areas will be the locations where the maximum of the fossils can be found as such places provide optimum conditions for slow mineralization and decomposition of bones.