Complex sentence: During this same time, he became one of the founders of the Dallas area's Turkey City Writer's Workshop, which spawned many fine new Texas genre writers and the all-Texas original speculative ficton hardcover anthology, "Lone Star Universe".
Split into simpler sentences: During this same time, he became one of the founders of the Dallas area's Turkey City Writer's Workshop. Many fine new Texas genre writers emerged from this experience, eventually giving birth to the all-Texas original speculative ficton hardcover anthology, "Lone Star Universe".