Final answer:
The fossil of a plant that produced spores for reproduction indicates that it was a seedless plant, such as ferns and mosses.
Step-by-step explanation:
The fossil of a plant that produced spores for reproduction indicates that it was a seedless plant. Seedless plants, such as ferns and mosses, reproduce through spores rather than seeds. Spores are small, single-celled structures that can develop into a new organism under suitable conditions.
Learn more about Plant reproduction