Fauna Sinovenator changii, a basal troodontid covered in filament-like structures, this theropod has serrated teeth, raptorial hands and a sickle shaped claw on the foot indicative of a predatory lifestyle. A lightly built maniraptoran, it had keen senses indicated by enlarged orbits and well developed middle ears, and its long hind-limbs point to an agile lifestyle. Psittacosaurus meileyingensis, a basal ceratopsian; the young have hollow quill-like structures on the back and tail. Confuciusornis sanctus is the earliest known bird, possessing a horny beak without teeth. The wings are big with exceptionally long flight feathers and large fully-functional grasping claws. Sexual dimorphism is clearly visible with the slightly larger males having a pair of very long tail feathers. Protopteryx fengningensis, a primitive eoenantiorn bird retaining teeth in the jaw, small wing claws and a long pygostyle forming the tail stump with extended feathers. Zhangheotherium quinquecuspidens, a small symmetrodont mammal adapted to arboreal and terrestrial life. Hyphalosaurus lingyuanensis, a long-necked freshwater diapsid reptile. Manchurochelys liaoxiensis, a pond turtle with short flat head and long tail. Yabeinosaurus tenuis, a small sized lizard with sharp curved conical teeth. Callobatrachus sanyanensis, the earliest discoglossid (disk tongued) frog. Liaoxitriton zhongjiani, a small sized salamander. Aeschnidum cancellosa, a large dragonfly. Ephemeropsis trisetalis, a medium sized mayfly larva. Protopsephurus liui, a primitive freshwater paddlefish. Peipiaosteus pani, a basal sturgeon. Numerous different insects over the water, and unseen small fish, crustaceans and molluscs below. Flora Rehezamites anisolobus, a cycad-like bennettitale, shown with ‘inflorescence’ spike. Equisetum longevaginatus, a leafless horsetail. Botrychites reheensis, a tree fern. Todites denticulata, a terrestrial fern. kanowskia rigida, a ginkgo, with other early trees in the distance. Primitive aquatic flowering plants.