Oldest fossil crustacean
- Who
- Mark Williams, David Siveter, Dieter Waloszek
- What
- 511000000 year(s)
- Where
- United Kingdom (Shropshire,)
- When
- 01 January 2001
The existence of a complete fossilised crustacean measuring less than 0.5 mm long was announced in 2001 by geologists Mark Williams (UK) David Siveter (UK) and Dieter Waloszek (Germany). At 511 million years old, this tiny lifeform from Shropshire, UK, is the oldest crustacean ever discovered.