A new fossil discovery may be the oldest animal fossil on record. The 890-million-year-old sponge would push back the evolutionary
Source: EarthSky | New fossil discovery may add 100s of millions of years to animal evolution
A new fossil discovery may be the oldest animal fossil on record. The 890-million-year-old sponge would push back the evolutionary
Source: EarthSky | New fossil discovery may add 100s of millions of years to animal evolution
Darwiniana 