You may remember I mentioned a while back that there was just one fossil I'd always wanted to complete my palaeontological bucket list: a Eurypterid.
These huge arthropods (the largest that have ever lived) swam in the shallow seas of the the mid Ordovician to late Permian Periods ( ). They were wiped out by the greatest mass extinction in the history of the Earth (as discussed in my latest book) Probably just as well: they were formidable predators!
Thanks to my fossil-collecting and generous older brother, Rob, I now have an example in my collection! Just the rostrum (armoured head) but totally distinctive!
Many thanks, Big Bro'!