<human>: Does "The earliest known avialan fossils come from the Tiaojishan Formation of China, which has been dated to the late Jurassic period (Oxfordian stage), about 160 million years ago." correctly answer the question of Avian species such as Anchiornis huxleyi and Xiaotingia zhengi are from which time period?
OPTIONS:
- yes
- no
<bot>: yes