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Tough grasses. Soil stabilization and creation of humus in decomposing. (~5 species)

Flowering woody-shrubs, trees. Carbon fixation. (~10 species)

Fertilizing insects. Apis melifera (honeybee), bumble bees, ants, wasps. (~20 species)

Butterflies, moths. (Aesthetics, pollination.) (~20 species)

Worms - earthworms and various nematodes and flatworms (land and aquatic). Soil creation and improvement. (~30 species)

Mosses, lichens, ferns and Worts. Humus creation and spreading biomatter over inorganic substrates - paving the way for larger species. (Plus, they're laying down peat should the future need it.) (~20 species)

Slugs, snails. Turning organic matter into altered biomass, stimulating plant growth. (~10 species)

Flies. Dragonflies. Spiders. (~20 species)

Termites. Increase wood breakdown. (~5 species)

More fungi. Cellulose breakdown. (~5 species)

More bacterial strains (land/water): Rhizobium leguminosarum, Pseudomonas putida, Bacillus subtilis, Desulfovibrio desulfuricans, Actinomyces israelii, Bacteroides fragilis, Geobacillus stearothermophilus, Methanococcus (Methanocaldococcus) jannaschii - This list of 8 strains is provisional and I will update as I can. Given the timescales and bacterial reproduction/mutation rates, I would expect hundreds of thousands to millions of strains to be available around the 1 million year mark.

More flowering plants. Squash, legumes (nitrogen fixation by bacteria in root nodules) fruit trees, nut trees. (~20 species.)

More grasses. Maize, barley, wheat, oats, wetland grasses, reeds etc.. (~20 species)

Tardigrades in the soil to deal with the tinyest fragments of cell-debris.

Tough grasses. Soil stabilization and creation of humus in decomposing. (~5 species)

Flowering woody-shrubs, trees. Carbon fixation. (~10 species)

Fertilizing insects. Apis melifera (honeybee), bumble bees, ants, wasps. (~20 species)

Butterflies, moths. (Aesthetics, pollination.) (~20 species)

Worms - earthworms and various nematodes and flatworms (land and aquatic). Soil creation and improvement. (~30 species)

Mosses, lichens, ferns and Worts. Humus creation and spreading biomatter over inorganic substrates - paving the way for larger species. (Plus, they're laying down peat should the future need it.) (~20 species)

Slugs, snails. Turning organic matter into altered biomass, stimulating plant growth. (~10 species)

Flies. Dragonflies. Spiders. (~20 species)

Termites. Increase wood breakdown. (~5 species)

More fungi. Cellulose breakdown. (~5 species)

Tardigrades in the soil to deal with the tinyest fragments of cell-debris.

More bacterial strains (land/water): Rhizobium leguminosarum, Pseudomonas putida, Bacillus subtilis, Desulfovibrio desulfuricans, Actinomyces israelii, Bacteroides fragilis, Geobacillus stearothermophilus, Methanococcus (Methanocaldococcus) jannaschii - This list of 8 strains is provisional and I will update as I can. Given the timescales and bacterial reproduction/mutation rates, I would expect hundreds of thousands to millions of strains to be available around the 1 million year mark.

More flowering plants. Squash, legumes (nitrogen fixation by bacteria in root nodules) fruit trees, nut trees. (~20 species.)

More grasses. Maize, barley, wheat, oats, wetland grasses, reeds etc.. (~20 species)

More flowering plants. Squash, legumes (nitrogen fixation by bacteria in root nodules) fruit trees, nut trees. (~20 species.)

More grasses. Maize, barley, wheat, oats, wetland grasses, reeds etc.. (~20 species)

More flowering plants. Squash, legumes (nitrogen fixation by bacteria in root nodules) fruit trees, nut trees. (~20 species.)

More grasses. Maize, barley, wheat, oats, wetland grasses, reeds etc.. (~20 species)

Tardigrades in the soil to deal with the tinyest fragments of cell-debris.

Cyanobacteria. Nanophytoplankton. Initial oxygen production. (~20 species) The species number will increase as niches are colonized over time - allow for mutations and speciation at this stage - and - sink carbon from oceans. Respectivley.

Nitrogen fixers. Converts gaseous nitrogen to various salts available in the water-table. (~5 species)

Cyanobacteria. Initial oxygen production. (~10 species) The species number will increase as niches are colonized over time - allow for mutations and speciation at this stage.

Nanophytoplankton. (~10 species) Carbon fixation in oceans (chalk formation etc..)

Nitrogen fixers. Converts gaseous nitrogen to various salts available in the water-table. (~5 species)