{"id":5242,"date":"2026-09-25T16:11:42","date_gmt":"2026-09-25T13:11:42","guid":{"rendered":"https:\/\/dev.artefactumgallery.com\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/"},"modified":"2026-10-13T04:41:45","modified_gmt":"2026-10-13T01:41:45","slug":"orthoceras-fossil-marble-table-from-the-paleozoic-era","status":"publish","type":"product","link":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/","title":{"rendered":"Orthoceras Fossil Marble Table from the Paleozoic Era"},"content":{"rendered":"<p><strong>Rarity and Value<\/strong><br \/>This fossil marble table preserves an exceptionally dense assemblage of Orthoceras cephalopod fossils naturally embedded within a dark marine limestone matrix. Orthoceras were extinct marine molluscs belonging to the subclass Nautiloidea, characterised by their elongated conical shells divided internally into numerous chambered segments. These ancient cephalopods inhabited prehistoric oceans approximately 400\u2013450 million years ago during the Ordovician and Devonian periods, functioning as active marine predators within early Paleozoic ecosystems. The polished surface reveals numerous longitudinal shell sections displaying clearly visible septa and siphuncle structures, which once regulated buoyancy and enabled controlled movement through ancient shallow seas. Fossil concentrations of this density are highly valued because they preserve extensive biological evidence of early cephalopod diversification and the emergence of complex predatory marine organisms during a critical stage of marine evolutionary history.<\/p>\n<p><strong>Discovery<\/strong><br \/>The fossil-bearing limestone originates from ancient marine sedimentary deposits formed on prehistoric seabeds rich in cephalopod life. During the Paleozoic Era, vast warm epicontinental seas covered large portions of present-day North Africa, creating environments ideal for Orthoceras populations and other early marine invertebrates. After death, the shells accumulated on the seafloor where rapid burial within carbonate sediments protected them from destruction and allowed mineral replacement over hundreds of millions of years. The preserved fossils exhibit characteristic biological morphology associated with Orthoceras, including elongated tapering shell geometry, chamber partitioning, and central siphuncular canals visible throughout the polished sections. These anatomical structures provide important palaeontological evidence for understanding cephalopod locomotion, buoyancy adaptation, feeding ecology, and the evolutionary development of early predatory molluscs that later gave rise to more advanced nautiloids and ammonoids.<\/p>\n<p><strong>Preservation<\/strong><br \/>The fossils are exceptionally preserved within a dense black limestone matrix that stabilises the original biological structures while enhancing visual contrast between fossilised shell material and surrounding sedimentary rock. Numerous specimens retain sharply defined chamber segmentation and longitudinal internal anatomy, allowing detailed observation of septal spacing, shell tapering, and siphuncular organisation characteristic of Orthoceras cephalopods. Variations in colouration between white fossil structures and dark matrix reflect natural mineralisation processes that occurred during fossilisation deep within marine sediments over geological timescales. The polished preservation exposes multiple cross-sections and longitudinal views simultaneously, offering significant scientific and educational value for studying Paleozoic marine ecosystems and cephalopod morphology. Such preservation quality provides rare insight into the anatomy and abundance of early marine predators that inhabited Earth\u2019s oceans long before the emergence of vertebrate-dominated ecosystems.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Rarity and ValueThis fossil marble table preserves an exceptionally dense assemblage of Orthoceras cephalopod fossils naturally embedded within a dark marine limestone matrix. Orthoceras were extinct marine molluscs belonging to the subclass Nautiloidea, characterised by their elongated conical shells divided internally into numerous chambered segments. These ancient cephalopods inhabited prehistoric oceans approximately 400\u2013450 million years [&hellip;]<\/p>\n","protected":false},"featured_media":3010,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"animal":[],"family":[],"frame_color":[],"genus":[],"kind":[],"material":[1677,1679],"period":[1609],"artifact_type":[],"type_of_rug":[],"view":[],"product_brand":[],"product_cat":[1336,1272,1276,1239,1243,1313],"product_tag":[],"class_list":["post-5242","product","type-product","status-publish","has-post-thumbnail","material-marble","material-orthoceras-cephalopod","period-devonian","product_cat-antique-coffee-tables","product_cat-antique-dining-table-and-chairs","product_cat-art-furniture","product_cat-fossils","product_cat-furniture","product_cat-vintage-side-tables","first","instock","sold-individually","shipping-taxable","purchasable","product-type-simple"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Orthoceras Fossil Marble Table | Hong Kong<\/title>\n<meta name=\"description\" content=\"Orthoceras fossil marble table, Morocco, Devonian, approximately 400\u2013450 million years old, 49 x 70 cm, dense Orthoceras fossils in dark marine limestone.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Orthoceras Fossil Marble Table | Hong Kong\" \/>\n<meta property=\"og:description\" content=\"Orthoceras fossil marble table, Morocco, Devonian, approximately 400\u2013450 million years old, 49 x 70 cm, dense Orthoceras fossils in dark marine limestone.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/\" \/>\n<meta property=\"og:site_name\" content=\"Artefactum Gallery\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-13T01:41:45+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/artefactumgallery.com\/wp-content\/uploads\/2026\/09\/14-1-1-1.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"1750\" \/>\n\t<meta property=\"og:image:height\" content=\"1750\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/catalog\\\/orthoceras-fossil-marble-table-from-the-paleozoic-era\\\/\",\"url\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/catalog\\\/orthoceras-fossil-marble-table-from-the-paleozoic-era\\\/\",\"name\":\"Orthoceras Fossil Marble Table | Hong Kong\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/catalog\\\/orthoceras-fossil-marble-table-from-the-paleozoic-era\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/catalog\\\/orthoceras-fossil-marble-table-from-the-paleozoic-era\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/artefactumgallery.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/14-1-1-1.webp\",\"datePublished\":\"2026-09-25T13:11:42+00:00\",\"dateModified\":\"2026-10-13T01:41:45+00:00\",\"description\":\"Orthoceras fossil marble table, Morocco, Devonian, approximately 400\u2013450 million years old, 49 x 70 cm, dense Orthoceras fossils in dark marine limestone.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/catalog\\\/orthoceras-fossil-marble-table-from-the-paleozoic-era\\\/#breadcrumb\"},\"inLanguage\":\"en-HK\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/catalog\\\/orthoceras-fossil-marble-table-from-the-paleozoic-era\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-HK\",\"@id\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/catalog\\\/orthoceras-fossil-marble-table-from-the-paleozoic-era\\\/#primaryimage\",\"url\":\"https:\\\/\\\/artefactumgallery.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/14-1-1-1.webp\",\"contentUrl\":\"https:\\\/\\\/artefactumgallery.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/14-1-1-1.webp\",\"width\":1750,\"height\":1750},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/catalog\\\/orthoceras-fossil-marble-table-from-the-paleozoic-era\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Shop\",\"item\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/shop\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Orthoceras Fossil Marble Table from the Paleozoic Era\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/#website\",\"url\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/\",\"name\":\"Artefactum Gallery\",\"description\":\"\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/artefactumgallery.com\\\/en-hk\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-HK\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Orthoceras Fossil Marble Table | Hong Kong","description":"Orthoceras fossil marble table, Morocco, Devonian, approximately 400\u2013450 million years old, 49 x 70 cm, dense Orthoceras fossils in dark marine limestone.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/","og_locale":"en_US","og_type":"article","og_title":"Orthoceras Fossil Marble Table | Hong Kong","og_description":"Orthoceras fossil marble table, Morocco, Devonian, approximately 400\u2013450 million years old, 49 x 70 cm, dense Orthoceras fossils in dark marine limestone.","og_url":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/","og_site_name":"Artefactum Gallery","article_modified_time":"2026-10-13T01:41:45+00:00","og_image":[{"width":1750,"height":1750,"url":"https:\/\/artefactumgallery.com\/wp-content\/uploads\/2026\/09\/14-1-1-1.webp","type":"image\/webp"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/","url":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/","name":"Orthoceras Fossil Marble Table | Hong Kong","isPartOf":{"@id":"https:\/\/artefactumgallery.com\/en-hk\/#website"},"primaryImageOfPage":{"@id":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/#primaryimage"},"image":{"@id":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/#primaryimage"},"thumbnailUrl":"https:\/\/artefactumgallery.com\/wp-content\/uploads\/2026\/09\/14-1-1-1.webp","datePublished":"2026-09-25T13:11:42+00:00","dateModified":"2026-10-13T01:41:45+00:00","description":"Orthoceras fossil marble table, Morocco, Devonian, approximately 400\u2013450 million years old, 49 x 70 cm, dense Orthoceras fossils in dark marine limestone.","breadcrumb":{"@id":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/#breadcrumb"},"inLanguage":"en-HK","potentialAction":[{"@type":"ReadAction","target":["https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/"]}]},{"@type":"ImageObject","inLanguage":"en-HK","@id":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/#primaryimage","url":"https:\/\/artefactumgallery.com\/wp-content\/uploads\/2026\/09\/14-1-1-1.webp","contentUrl":"https:\/\/artefactumgallery.com\/wp-content\/uploads\/2026\/09\/14-1-1-1.webp","width":1750,"height":1750},{"@type":"BreadcrumbList","@id":"https:\/\/artefactumgallery.com\/en-hk\/catalog\/orthoceras-fossil-marble-table-from-the-paleozoic-era\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/artefactumgallery.com\/en-hk\/"},{"@type":"ListItem","position":2,"name":"Shop","item":"https:\/\/artefactumgallery.com\/en-hk\/shop\/"},{"@type":"ListItem","position":3,"name":"Orthoceras Fossil Marble Table from the Paleozoic Era"}]},{"@type":"WebSite","@id":"https:\/\/artefactumgallery.com\/en-hk\/#website","url":"https:\/\/artefactumgallery.com\/en-hk\/","name":"Artefactum Gallery","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/artefactumgallery.com\/en-hk\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-HK"}]}},"_links":{"self":[{"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/product\/5242","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/comments?post=5242"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/media\/3010"}],"wp:attachment":[{"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/media?parent=5242"}],"wp:term":[{"taxonomy":"animal","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/animal?post=5242"},{"taxonomy":"family","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/family?post=5242"},{"taxonomy":"frame_color","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/frame_color?post=5242"},{"taxonomy":"genus","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/genus?post=5242"},{"taxonomy":"kind","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/kind?post=5242"},{"taxonomy":"material","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/material?post=5242"},{"taxonomy":"period","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/period?post=5242"},{"taxonomy":"artifact_type","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/artifact_type?post=5242"},{"taxonomy":"type_of_rug","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/type_of_rug?post=5242"},{"taxonomy":"view","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/view?post=5242"},{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/product_brand?post=5242"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/product_cat?post=5242"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/artefactumgallery.com\/en-hk\/wp-json\/wp\/v2\/product_tag?post=5242"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}