| Micropachycephalosaurus Temporal range: Late Cretaceous,
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| Restoration | |
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| Drawing of the ilium | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Dinosauria |
| Clade: | †Ornithischia |
| Clade: | †Neornithischia |
| Clade: | †Marginocephalia |
| Genus: | †Micropachycephalosaurus Dong, 1978 |
| Species: | †M. hongtuyanensis
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| Binomial name | |
| †Micropachycephalosaurus hongtuyanensis Dong, 1978
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Micropachycephalosaurus (meaning "small thick-headed lizard") is an extinct genus of basal marginocephalian dinosaur containing only the type species, Micropachycephalosaurus hongtuyanensis. It lived in China during the Late Cretaceous (Campanian) and was found in the Jiangjunding Formation.[1]
Micropachycephalosaurus has the longest name of any dinosaur, with 23 letters in the genus name alone, while the full binomial contains 37 letters.[2]
- ^ Holtz, Thomas R. Jr. (2011) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, Winter 2010 Appendix.
- ^ "How Dinosaurs Were Named | Scholastic (no longer available)".