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MICROCERATUS

a plant-eating leptoceratopsid ceratopsian dinosaur from the Late Cretaceous of Mongolia.
Pronunciation: MIEK-ro-suh-RAH-tuss
Meaning: Small-horned
Author/s: Mateus (2008)
Synonyms: Microceratops (Bohlin, 1953)
First Discovery: Nei Mongol, China
Discovery Chart Position: #645

Microceratus gobiensis

Microceratus was originally christened Microceratops by Anders Birger Bohlin in 1953. Alas, that name had already been snaffled by Seyrig the previous year for an ichneumon — a type of wasp, not the ferret-like killer of dragons from medieval folklore — rendering Bohlin’s moniker a taxonomic faux pas and invalid under ICZN rules. The remains were hardly worth the bureaucratic bother, since the best bits — a partial skeleton from Shiregin Gashun — were reassigned to Graciliceratops by Paul Sereno in 2000. Yet, a replacement name was still required for the fragments that remained, and Octávio Mateus duly obliged in 2008. Thus, Microceratus was born.

One of the short-frilled neoceratopsians known as leptoceratopsids, Microceratus was a small, bipedal herbivore with stubby forelimbs, a modest bony neck frill, the signature ceratopsian beak — but no horns, and was maybe 2 feet long. A second species, originally named Microceratops sulcidens ("Quarry tooth"), was described alongside Microceratops gobiensis by Bohlin in 1953. But its remains — a couple of teeth, plus a vertebra, and some hand and foot bones — were recovered from an entirely different locality have since vanished into the stratigraphic ether.
(Small-horned from the Gobi) Etymology
Microceratus is derived from the Greek "mikros" (small) and "ceratos" (horned).
The species epithet, gobiensis, refers to the Gobi Desert.
Discovery
The remains of Microceratus were discovered in Mongolia's Gobi Desert during Sino-Swedish expeditions between 1927-1931.
The holotype consists of teeth, fragmentary jaws and bits of skeleton.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Cenomanian
Age range: 99-84 mya
Stats:
Est. max. length: 0.6 meters
Est. max. hip height: ?
Est. max. weight: 5 Kg
Diet: Herbivore
References
• Bohlin AB (1953) "Fossil reptiles from Mongolia and Kansu". Reports from the Scientific Expedition to the North-western Provinces of China under Leadership of Dr. Sven Hedin. VI. Vertebrate Palaeontology 6. The Sino-Swedish Expedition Publication, 37: 1-113.
• Maryanska T and Osmólska H (1975) "Protoceratopsidae (Dinosauria) of Asia". Palaeontologia Polonica, 33: 134–143.
• Nessov LA, Kaznyshkina LF and Cherepanov GO (1989) "Mesozoic ceratopsian dinosaurs and crocodiles of central Asia". In Bogdanova and Khozatskii (eds.) "Theoretical and Applied Aspects of Modern Palaeontology": 144-154.
• Dodson P (1996) "The Horned Dinosaurs".
Mateus O (2008) "Two ornithischian dinosaurs renamed: Microceratops Bohlin 1953 and Diceratops Lull 1905". Journal of Paleontology, 82(2): 423. DOI: 10.1666/07-069.1.
• Sereno PC (2000) "The fossil record, systematics and evolution of pachycephalosaurs and ceratopsians from Asia". Page 489–492 in Benton, Shishkin, Unwin and Kurochkin (eds) "The Age of Dinosaurs in Russia and Mongolia".
• Dodson P, Forster CA and Sampson SD (2004) "Ceratopsidae". In Weishampel, Dodson and Osmólska (eds.) "The Dinosauria: Second Edition".
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To cite this page:
Atkinson, L. "MICROCERATUS :: from DinoChecker's dinosaur archive".
›. Web access: 06th Mar 2026.
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