Oligosaurus

(pronounced OL-ig-oh-SAWR-us) Oligosaurus meaning small lizard) is an invalid name for Rhabdodon , a small, plant-eating dinosaur from the late Cretaceous period. Oligosaurus was named by Seeley in 1881.
Found on http://www.enchantedlearning.com/subjects/dinosaurs/glossary/

Oligosaurus

Oligosaurus This nomenclature (“small lizard”) is no longer recognized by scientists because they found that it described an animal that was previously given another name which is Mochlodon or Rabdodon. Named by Harry Govier Seeley in 1881.
Found on http://www.wordinfo.info/words/index/info/view_unit/1460/7
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