Thomas van der Hammen
Thomas van der Hammen ( Schiedam , Netherlands , 27 September 1924 - Chía , Colombia , 12 March 2010 ) was a Dutch palaeontologist , botanist and geologist . 
<triplet> Thomas van der Hammen <subj> 27 September 1924 <obj> date of birth <subj> 12 March 2010 <obj> date of death <triplet> Schiedam <subj> Netherlands <obj> country <triplet> Chía <subj> Colombia <obj> country