Thanks to a little housecleaning, the Hypsilophodont family has shed a number of older species and gained a new chicken-sized fossil.
, though it has a much longer history. Famous evolutionary biologist Thomas Henry Huxley first identified the latter in 1869, after a disagreement with paleontologist Richard Owen, who thought it was a juvenile Iguanodon.
Huxley’s specimen, a near-complete skeleton of the diminutive dinosaur, was one of the best yet discovered by the young field of paleontology. That’s why, when researchers cleaned out its taxonomic waste basket and left it alone in its own family, something didn’t sit right. “We had a curious situation where one of the first dinosaur families to be recognized had just one species. And now, we have two,” said Nicholas Longrich, a paleontologist at the University of Bath, in
. “What’s intriguing is that they’re not particularly closely related to anything found in North America, Asia or the southern hemisphere.”Pangea supercontinent“We’re still piecing together how all these dinosaurs are related, and how dinosaurs moved between continents,” Longrich said. “After Pangaea broke up, there was a lot of isolation, leading to different kinds of dinosaurs evolving on each continent.
Local collectors have helped to discover several new dinosaurs on the Isle of Wight in the past four years, according to Dave Martill, a paleontologist who worked on the project. Nature has also served as a willing partner, as the sea erodes the cliffs and reveals new fossils.
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