Micropachycephalosaurus

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Quick Facts
NameMicropachycephalosaurus
Diet
Weight5 kg
Length0.6 meters
Height0.17 meters
Period
Micropachycephalosaurus
Human

Micropachycephalosaurus was a genus of ornithischian dinosaur from the Late Cretaceous, between 70 and 68.5 million years ago. The name had nine syllables, and when you break it down into its constituent Greek roots: micro, pachy, cephalo, and saurus it translates as "small thick-headed lizard".  

One of the smallest dinosaurs discovered, just over a meter long, but with the longest name. It was an ornithischian plant-eating dinosaur. However, it lacks a skull roof, which means it cannot be placed at family level. So far, they could not confirm the existence of a thickened skull. Therefore, it may or may not be a pachycephalosaur. In 2011, it was considered a basal member of Ceratopsia. 

The pachycephalosaur relied on speed and agility to try to evade predators such as dromaeosaurid and troodontid dinosaurs. Its estimated size was 1 m in length, 1.8 m in height, and it weighed 2.3 - 4.5 kg.

What does Micropachycephalosaurus mean?

Micropachycephalosaurus had nine syllables, and when you break it down into its constituent Greek roots: micro, pachy, cephalo, and saurus it translates as "small thick-headed lizard."  

What did Micropachycephalosaurus eat?

Micropachycephalosaurus was a herbivore; obviously, it ate plants.

What is the strength of Micropachycephalosaurus?

Micropachycephalosaurus relied on speed and agility to try to evade predators such as dromaeosaurid and troodontid dinosaurs.

Where was Micropachycephalosaurus discovered?

Micropachycephalosaurus was discovered in a cliff southwest of Laiyang, Shandong Province, China.

Where did they live?

When did they live?

What was your diet?

Who discovered them?

What kind of dinosaurs are they?

What type of species are they?

  • Holtz, Thomas R. Jr. (2011) Dinosaurs: The Most Complete, Up-to-Date Encyclopedia for Dinosaur Lovers of All Ages, Winter 2010 Appendix.
  • Dong, Z. (1978). A new genus of Pachycephalosauria from Laiyang, Shantung.Vertebrata PalAsiatica Volume 16, Number 4 October, 1977 pp. 225-228
  • Sullivan, R.M. (2006). "A taxonomic review of the Pachycephalosauridae (Dinosauria: Ornithischia)." New Mexico Museum of Natural History and Science Bulletin, 35: 347-365.
  • Butler, R.J. and Zhao, Q. "The small-bodied ornithischian dinosaurs. Micropachycephalosaurus hongtuyanensis and Wannanosaurus yansiensis from the Late Cretaceous of China." Cretaceous ResearchCorrected Proof, Available online 8 April 2008 doi:10.1016/j.cretres.2008.03.002
  • Richard J. Butler, Jin Liyong, Chen Jun, Pascal Godefroit (2011). "The postcranial osteology and phylogenetic position of the small ornithischian dinosaur. Changchunsaurus parvus from the Quantou Formation (Cretaceous: Aptian-Cenomanian) of Jilin Province, north-eastern China". Palaeontology 54 (3): 667-683. doi:10.1111/j.1475-4983.2011.01046.x. 
geological time 3

Fun Facts

  • Micropachycephalosaurus means "small thick-headed lizard".  
  • It was an ornithological plant-eating dinosaur.
  • One of the smallest dinosaurs ever discovered. 
  • It relied on speed and agility when threatened by predators.

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