{"product_id":"calymene-niagarensis-trilobite-fossil","title":"Calymene niagarensis Trilobite Fossil","description":"\u003cp\u003e\u003cspan\u003eWith its beautifully defined exoskeleton, distinctive segmented body, and compact three-dimensional form, this \u003c\/span\u003e\u003cem\u003e\u003cspan\u003eCalymene niagarensis\u003c\/span\u003e\u003c\/em\u003e\u003cspan\u003e trilobite is a fascinating example of the ancient marine life that inhabited Earth's Silurian seas.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eDating to the Middle to Late Silurian Period approximately 438 to 410 million years ago, this specimen comes from the Grafton Formation near Waverly, Illinois. \u003c\/span\u003e\u003cem\u003e\u003cspan\u003eCalymene\u003c\/span\u003e\u003c\/em\u003e\u003cspan\u003e trilobites are particularly recognized for their prominent head shields, well-defined thoracic segments, and ability to enroll their bodies for protection. These fascinating marine arthropods inhabited ancient seafloors, where they likely moved across soft sediments in search of food.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThis specimen measures approximately 1 inch long and is preserved without its surrounding rock matrix, allowing its intricate anatomy to be appreciated from multiple angles. Its natural coloration, raised central axis, and deeply defined body segments highlight the trilobite's distinctive appearance. The detailed three-dimensional preservation makes it an attractive addition to any fossil collection and a wonderful example of Illinois' rich Silurian fossil record.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eA Certificate of Authenticity from Tyrannostorus is included.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpecimen Details\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFossil:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e\u003cspan\u003eCalymene niagarensis\u003c\/span\u003e\u003c\/em\u003e\u003cspan\u003e Trilobite\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eGeological Age:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Middle to Late Silurian\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eApproximate Age:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 438–410 million years\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eFormation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Grafton Formation\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eLocality:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Waverly, Illinois, USA\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eTrilobite Length:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approx. 1 inch\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eMatrix:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e None (freestanding specimen)\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eCertificate of Authenticity:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Included\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cspan\u003eYou will receive the exact specimen pictured.\u003c\/span\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Contact Us\" href=\"https:\/\/1384c8-80.myshopify.com\/pages\/contact\"\u003eContact Us\u003c\/a\u003e I \u003ca title=\"Shipping\" href=\"https:\/\/1384c8-80.myshopify.com\/pages\/shipping-and-pick-up\"\u003eShipping\u003c\/a\u003e I \u003ca title=\"Returns\" href=\"https:\/\/1384c8-80.myshopify.com\/pages\/return-policy\"\u003eReturns\u003c\/a\u003e I \u003ca title=\"Authenticity\" href=\"https:\/\/1384c8-80.myshopify.com\/pages\/authenticity\"\u003eAuthenticity\u003c\/a\u003e\u003c\/p\u003e","brand":"Tyrannostorus","offers":[{"title":"Default Title","offer_id":47087580283076,"sku":"CAL-NIA-TRL","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/9956\/8068\/files\/Calymeneniagarensis2.png?v=1792623166","url":"https:\/\/tyrannostorus.com\/products\/calymene-niagarensis-trilobite-fossil","provider":"Tyrannostorus","version":"1.0","type":"link"}