Mixosaurus Period: Middle Triassic Period Approximately 240 million years ago (Anisian) Location: Yunnan Province, China Slab Dimensions: Approximately 49 × 39 cm Fossil Length: Approximately 82 cm Description: This is a rare Mixosaurus fossil specimen from the Middle Triassic marine deposits of Yunnan, China, dating back approximately 240 million years. Mixosaurus was one of the earliest members of the ichthyosaur lineage, a group of marine reptiles that became highly adapted to life in ancient oceans during the Mesozoic Era. The specimen is preserved on a natural stone slab and displays an impressive articulated skeleton. The fossil clearly reveals the elongated body shape, skull structure, vertebral column, tail region, and paddle-like limbs characteristic of early ichthyosaurs. The long, streamlined body and powerful tail indicate adaptations for efficient swimming in marine environments. Mixosaurus represents an important transitional stage in ichthyosaur evolution, showing a combination of primitive reptilian features and more specialized aquatic adaptations. Unlike later ichthyosaurs with highly streamlined dolphin-like bodies, Mixosaurus retained several ancestral characteristics, making it scientifically valuable for studying the early evolution of marine reptiles. The exceptional preservation of this specimen allows detailed observation of the skeletal anatomy, including the numerous vertebrae along the tail, limb structures, and overall body proportions. Fossils from the Triassic marine deposits of Yunnan are internationally recognized for their importance in revealing the recovery and diversification of marine ecosystems after the end-Permian mass extinction. This fossil is 100% natural, with a complete natural matrix and authentic preservation. Its combination of geological age, rarity, and display quality makes it an excellent specimen for fossil collectors, museums, educational exhibitions, or natural history decoration. Due to the fragile nature of fossil slabs and long-distance transportation requirements, reinforced protective packaging is used to minimize the risk of damage during shipping. Minor cracks, repaired areas, or small loose fragments may occur due to the natural structure of the stone and do not affect the authenticity or scientific value of the specimen. Any small detached fragments can usually be carefully restored with appropriate conservation methods. Note: The packaging does not include a photo frame or display stand.