穏やかな太古の海岸線の下を泳ぐデボン紀のサンゴ礁魚

A highly detailed, ultra-realistic split-level photograph of a prehistoric Devonian ocean. Above the water surface, a calm sea meets a rocky shoreline under a warm golden sky at sunset or sunrise. Distant volcanic mountains rise on the horizon with a plume of smoke, and sparse primitive vegetation grows on the sandy and rocky land. Below the waterline, clear turquoise water reveals a vibrant ancient reef environment. Large armored placoderm fish with heavy bony plates, powerful jaws, and streamlined bodies swim through the scene — some in the mid-ground and a prominent large one in the right foreground facing left with its mouth slightly open. Schools of smaller similar armored fish move in the background. The seabed is covered with layered living stone walls built by ancient corals, including broad flat tabulate corals and branching rugose (horn) corals in browns and oranges. Soft sunlight filters down through the water surface in gentle god rays, illuminating the fish and coral structures. Hyper-realistic textures of fish armor, coral surfaces, and water, cinematic composition, photorealistic, 8k resolution, no text, no watermark.