{"product_id":"orygmaspis-spinula-trilobite-bc-13-5x8-5","title":"Trilobite (Orygmaspis spinula) on matrix - Bull River, Cranbrook, British Columbia, Canada","description":"\u003cp\u003e\u003cspan\u003eThis specimen features an \u003cstrong\u003e\u003cem\u003eOrygmaspis spinula\u003c\/em\u003e\u003c\/strong\u003e \u003cstrong\u003etrilobite\u003c\/strong\u003e measuring approximately 3 × 2.25 cm, preserved near one end of a 13.5 × 8.5 cm rock plate. Its broad, rounded head shield, narrow segmented central axis and numerous finely defined thoracic segments are clearly visible. Slender lateral spines extend backward along the sides of the thorax and cephalon. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe yellow-tan colour of the cephalon is a good example of the \u003cstrong\u003e\"calcite wafer\" preservation\u003c\/strong\u003e of trilobites from the Bull River valley. The delicate wafer is preserved for the cephalon but has broken away for the body and tail. When broken, the finer details are more visible but some of the three dimensional aspect has been lost. Any specimen with the wafer preserved is special and certainly noteworthy for rare species like this one. The colour contrast makes for an attractive display specimen when combined with the trilobite's d\u003c\/span\u003e\u003cspan\u003eelicate spines and strong definition of the segmented body.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe specimen comes from \u003cstrong\u003eUpper Cambrian\u003c\/strong\u003e sediments of the \u003cstrong\u003eMcKay Group\u003c\/strong\u003e in the Bull River Valley, east of Cranbrook and Fort Steele, \u003cstrong\u003eBritish Columbia, Canada\u003c\/strong\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBritish Columbia fossils are illegal to sell, except under special circumstances. I represent a team that has claims on several trilobite localities in BC that have been legally grandfathered into older legislation. This allows them to legally excavate, prepare and sell fossils from these particular claims, including this specimen. \u003ca href=\"https:\/\/keithrocks.ca\/pages\/british-columbia-fossils-legal-status-legacy-claims-responsible-collecting\" title=\"British Columbia Fossils: Legal Status, Legacy Claims \u0026amp; Responsible Collecting\"\u003e\u003cstrong\u003e\u003cspan\u003eLearn more about British Columbia fossils and their legal status.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eFor those interested in learning more about the trilobites of the McKay Group I recommend the following scientific paper: \u003cstrong\u003eFurongian (Upper Cambrian) trilobites from the McKay Group, Bull River Valley, near Cranbrook, southeastern British Columbia, Canada (2016) by Brian D. E. Chatterton and Stacey Gibb in \u003cem\u003ePalaeontographica Canadiana\u003c\/em\u003e No 35\u003c\/strong\u003e. It is jointly published by the Canadian Society of Petroleum Geologists (now known as the Canadian Energy Geoscience Association) and the Geological Association of Canada\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFossil:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Trilobite\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eSpecies:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003cem\u003eOrygmaspis spinula\u003c\/em\u003e\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eAge:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Upper Cambrian\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eFormation:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e McKay Group\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eLocality:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Bull River valley, East of Cranbrook, British Columbia, Canada\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Trilobite: 3 × 2.25 cm; plate: 13.5 × 8.5 cm\u003c\/span\u003e\u003c\/p\u003e","brand":"Rocky Mountain Minerals and Fossils","offers":[{"title":"Default Title","offer_id":53304945803546,"sku":null,"price":300.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6011\/1386\/files\/orygmaspis-spinula-trilobite-135x85-detail.jpg?v=1793754859","url":"https:\/\/keithrocks.ca\/products\/orygmaspis-spinula-trilobite-bc-13-5x8-5","provider":"Rocky Mountain Minerals and Fossils","version":"1.0","type":"link"}