 Iguanodon was not part of the initial work of the dinosaur renaissance that began with the description of Deinonychus in 1969 , but it was not neglected for long . David B. Weishampel 's work on ornithopod feeding mechanisms provided a better understanding of how it fed , and David B. Norman 's work on numerous aspects of the genus has made it one of the best @-@ known dinosaurs . In addition , a further find of numerous Iguanodon skeletons , in Nehden , Nordrhein @-@ Westphalen , Germany , has provided evidence for gregariousness in this genus , as the animals in this areally restricted find appear to have been killed by flash floods . At least 15 individuals , from 2 to 8 metres ( 6 @.@ 6 to 26 @.@ 2 ft ) long , have been found here , although at least some of them are gracile iguanodontians and belong to the related Mantellisaurus or Dollodon ( described as I. atherfieldensis , at that time believed to be another species of Iguanodon ) . 
 Iguanodon <a href='negative_concord' title='1'><mark>was</mark></a> <a href='negative_concord' title='2'><mark>not</mark></a><a href='negative_concord' title='3'><mark>part</mark></a> of the initial work of the dinosaur renaissance <a href='null_relcl' title='4'><mark>that</mark></a>began with the description of Deinonychus in 1969 , but it was not neglected for long . David B. Weishampel <a href='null_genetive' title='5'><mark>'s</mark></a>work on ornithopod feeding mechanisms provided a better understanding of how it fed , and David B. Norman <a href='null_genetive' title='6'><mark>'s</mark></a>work on numerous aspects of the genus <a href='been_done' title='7'><mark>has</mark></a> made it one of the best @-@ known dinosaurs . In addition , a further find of numerous Iguanodon skeletons , in Nehden , Nordrhein @-@ Westphalen , Germany , <a href='been_done' title='8'><mark>has</mark></a> provided evidence for gregariousness in this genus , as the animals in this areally restricted find appear to <a href='been_done' title='9'><mark>have</mark></a> been killed by flash floods . At least 15 individuals , from 2 to 8 metres ( 6 @.@ 6 to 26 @.@ 2 ft ) long , <a href='been_done' title='10'><mark>have</mark></a> been found here , although at least some of them <a href='drop_aux' title='11'><mark>are</mark></a>gracile iguanodontians and belong to the related Mantellisaurus or Dollodon ( described as I. atherfieldensis , at that time believed to be another species of Iguanodon ) . 
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