{"product_id":"archaeoceratops-oshimai-skull","title":"Archaeoceratops oshimai skull","description":"\u003csection class=\"text-token-text-primary w-full focus:outline-none [--shadow-height:45px] has-data-writing-block:pointer-events-none has-data-writing-block:-mt-(--shadow-height) has-data-writing-block:pt-(--shadow-height) [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto [content-visibility:auto] supports-[content-visibility:auto]:[contain-intrinsic-size:auto_100lvh] R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\" data-turn-id=\"request-69e4ce3d-66e8-83eb-a320-e858450b81b6-7\" data-testid=\"conversation-turn-14\" data-scroll-anchor=\"false\" data-turn=\"assistant\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"eada288b-80e2-4832-957e-de737f8e7854\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" data-turn-start-message=\"true\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word light markdown-new-styling\"\u003e\n\u003cp data-start=\"41\" data-end=\"552\"\u003e\u003cem\u003e\u003cstrong data-start=\"41\" data-end=\"68\"\u003eArchaeoceratops oshimai\u003c\/strong\u003e\u003c\/em\u003e is a basal ornithischian dinosaur from the Early Cretaceous (approx. 125–120 million years ago), belonging to the Ceratopsia clade, described from fossil remains found in the Xinminbao Formation, Gansu Province (China). This taxon represents an early form in the evolution of ceratopsids, displaying a combination of primitive and derived characteristics that allow for an understanding of the transition to the large horned dinosaurs of the Late Cretaceous.\u003c\/p\u003e\n\u003cp data-start=\"554\" data-end=\"1431\"\u003eFrom a biometric perspective, \u003cstrong data-start=\"590\" data-end=\"617\"\u003eArchaeoceratops oshimai\u003c\/strong\u003e was a small animal, with an estimated length of between 0.9 and 1.2 meters and an approximate body mass of 10–15 kg. It had a light and relatively agile body, with hind limbs longer than the front, suggesting predominantly bipedal locomotion, although it could probably adopt a quadrupedal stance occasionally. The skull was small and featured a horny beak (rhamphotheca) in the anterior region, characteristic of ceratopsians, but lacked the large facial horns seen in more advanced forms. The bony frill was present but short and poorly developed. Dentition consisted of simple teeth arranged in a single functional row, without the complex dental batteries of later ceratopsids.\u003c\/p\u003e\n\u003cp data-start=\"1433\" data-end=\"2103\"\u003eRegarding its habits, \u003cstrong data-start=\"1458\" data-end=\"1485\"\u003eArchaeoceratops oshimai\u003c\/strong\u003e was an herbivore that fed on low-lying vegetation, such as ferns, tender shoots, and possibly early angiosperms. Its masticatory apparatus was relatively simple, so it likely selected less fibrous or easier-to-process plants. The combination of small size and agility suggests that it could rely on speed as its primary defense mechanism against predators, in contrast to larger ceratopsids that developed more elaborate defensive structures. It is possible that it exhibited some degree of social behavior, although direct evidence is limited.\u003c\/p\u003e\n\u003cp data-start=\"2105\" data-end=\"2728\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThe habitat of \u003cstrong data-start=\"2119\" data-end=\"2133\"\u003eA. oshimai\u003c\/strong\u003e was in continental environments of Northeast Asia during the early Cretaceous, characterized by semi-arid climates with fluvial systems and floodplains. The Xinminbao Formation reflects an environment with alternating wet and dry zones, where varied but not excessively dense vegetation thrived. In this context, \u003cstrong data-start=\"2476\" data-end=\"2495\"\u003eArchaeoceratops\u003c\/strong\u003e occupied an ecological niche as a small to medium-sized herbivore, forming part of faunal communities in which it coexisted with other primitive dinosaurs, contributing to the early stages of ceratopsian diversification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e\u003cspan\u003eMuseum-quality replicas with a high degree of scientific rigor made from high-definition resin.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eIf you need other scales, please do not hesitate to contact us at \u003ca rel=\"noreferrer noopener\" class=\"text-link\" href=\"mailto:info@dinosauriacreatures.com\" target=\"_blank\"\u003einfo@dinosauriacreatures.com\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApproximate skull measurements:\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e1:1 Scale Complete and Solid\u003c\/span\u003e\u003c\/li\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eLength 176 mm\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeight 142 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWidth 137 mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e","brand":"Nova Studios","offers":[{"title":"1:1 \/ Unprimed","offer_id":54779979956492,"sku":"DC-1386-11-SINI","price":268.0,"currency_code":"EUR","in_stock":true},{"title":"1:1 \/ Primed","offer_id":54779979989260,"sku":"DC-1386-11-IMPRI","price":280.0,"currency_code":"EUR","in_stock":true},{"title":"1:1 \/ Hand-painted","offer_id":54779980022028,"sku":"DC-1386-11-PINTA","price":365.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0672\/1106\/7660\/files\/Archaeoceratops_1.jpg?v=1777797454","url":"https:\/\/dinosauriacreatures.com\/en\/products\/archaeoceratops-oshimai-skull","provider":"Dinosauria Creatures","version":"1.0","type":"link"}