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AJKACERATOPS

a plant-eating bagaceratopsid ceratopsian dinosaur from the Late Cretaceous of Hungary.
Pronunciation: OI-ka-SEH-ruh-tops
Meaning: Horned face from Ajka
Author/s: Ősi et al. (2010)
Synonyms: None known
First Discovery: Ajka, Hungary
Chart Position: 600

Ajkaceratops kozmai

Ajkaceratops is known only from teeth, fragments of jaw that the teeth were attached to, and bits of upper and lower beak that would have sat in front of its teeth, which immediately catapulted it right to the top of Europe's "most complete ceratopsians that don't cause arguments" list. Yes, we know. It's a sorry state of affairs.

Other European "ceratopsians" include Stenopelix valdensis from Germany which some consider a pachycephalosaur and others an unclassifiable margenocephalian, Craspedodon from England which was long thought to be an iguanodontian and still might be, and six isolated teeth and two tail verts' from the Campanian of southern Sweden that are shrouded in so much uncertainty that no-one has even bothered to name them.

Although discovered in Hungary, Ajkaceratops is closer-in-features to the Asian ceratopsians Bagaceratops and Magnirostris than those from anywhere else, and, based on fossils from the same quarry, it shared its envoironment with crocodiles, pterosaurs, turtles and lizards, as well as a rhabdodontid ornithopod (Mochlodon verosi), a nodosaurid ankylosaur (Hungarosaurus tormai) and a maniraptoran theropod (Pneumatoraptor fodori).
(Kozma's Ajka horn face)Etymology
Ajkaceratops is derived from "Ajka" (a town near Iharkút in Hungary where its fossils were discovered), and the Greek "keras" (horn) and "ops" (face).
The species epithet, kozmai, honors Karoly Kozma.
Discovery
The remains of Ajkaceratops were discovered at the Iharkút locality in the Csehbánya Formation, near Ajka Town, Veszprém County, Bakony Mountains, western Hungary, which the authors state is a "floodplain and channel deposit formed by variegated clay, silt with interbedded grey and brown sand, and sandstone beds".
The holotype (MTM V2009.192.1, currently housed at the Hungarian Natural History Museum in Budapest) consists of skull, beak and jaw fragments which were discovered isolated but assumed to pertain to a single individual.
Estimations
Timeline:
Era: Mesozoic
Epoch: Late Cretaceous
Stage: Santonian
Age range: 86-83 mya
Stats:
Est. max. length: 1 meters
Est. max. hip height: ?
Est. max. weight: 20 Kg
Diet: Herbivore
References
• Attila Osi, Butler RJ and Weishampel DB (2010) "A Late Cretaceous ceratopsian dinosaur from Europe with Asian affinities". Nature 465(7297): 466–468. doi:10.1038/nature09019. (+supplementary data).
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To cite this page:
Atkinson, L. "AJKACERATOPS :: from DinoChecker's dinosaur archive".
›. Web access: 10th Dec 2017.
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