What's Earth's dominant species by mass?

Humans weigh approximately 350 million metric tons, making us the second-heaviest single animal species after cattle (650 million tons), though Antarctic krill comes close at 379 million tons. However, animals are dwarfed by other life forms—plants alone have 450 billion tons of carbon mass compared to animals' 2 billion tons, with sugar cane being the single largest crop harvest at 2 billion metric tons annually. The true dominant species by biomass on Earth is plants, with bacteria and fungi also far outweighing all animals combined.