Great-Lakes-Earth

In this alternate Earth, all the species of fish, amphibian, reptile, mammal and bird combine to make up only 0.5% of all animal life on the planet (presented on the pie chart in blue.) It doesn't sound much compared to the two or three percent back home, but it's still quite a lot of invertebrates! As with back home, the other 80% of animals on this alternate Earth make up the arthropods. By merging the two presented pies into one, what would this new pie chart look like?

We have here an alternate scenario in which our popular and familiar reefbuilders--coral, sponges and crinoids (flower-like relatives of sea stars)--have been extinct for 65 million years. So who would add color to the shallows when they are gone? The dark greens in this map consist of dense forests consisting primarily of large, multicellular brown algae under the order Laminariales--kelp. Since they behave like plants, it makes sense for them to forest the shallows in the tropics, where it is warm all the time and the length of day does not fluctuate with the seasons. The dark purples are reefs consisting of mussels, oysters, clams, barna