Which animals play a decisive role in soil formation?

For soil formation, animals consume or destroy the remains of plant organic matter.

An important role is played by:

Rodents, badgers, foxes eat plant tissues.
Beetles, fly larvae – they eat the corpses of animals.
Ants and Termites – Consume tissue from dead plants.
Beetles, flies, bacteria, protozoa consume animal excrement.
Worms, insects, molluscs, scorpions feed on decay products – dead organic matter that has settled in the soil.