(Ammonites)Baculites compressus All ammonoids show some type of suture pattern. The term "suture pattern" refers to the featured line that makes contact with the septa and the interior of the aragonitic shell. Ammonoid suture patterns show more complexity in comparison to the nautiloids whose sutures are comparatively simple. In the earliest …X272 Size: 7" (4-13/16" wide) Note - Adding 6 large Madagascar ammonites in July 2023 --> Link to Madagascar ammonites. Learn More. Cranaosphinctes sp. $450.00. An exceptional natural Cranaosphinctes ammonite showing the very nice external design from Saharaha, Madagascar. A July Fossil of the Month. Jurassic age.Jun 2, 2021 ... Findings of ammonoid soft tissues are extremely rare compared to the rich fossil record of ammonoid conchs ranging from the Late Devonian to ...A fossil of a 150 million-year-old ammonite in southern Germany with its insides on the outside. Credit... Klug et al., Swiss Journal of Palaeontology, 2021. By Sabrina Imbler. Jan. 31, 2021.While ammonites seem to have inhabited a range of environments including reefs, their fossils are only occasionally common in places where coral reefs or crinoids dominate. On the other hand, sediments that contain lots of oysters, bivalves, belemnites and burrowing echinoids are often good places to find ammonites. Fig. 2.Oct 19, 2010 ... So I set about looking for neat objects and stumbled on a lime stone fossil of what I believe is an Ammonite from some 251 – 65 million years ...Sharing ammonite fossils from the Smithsonian’s collection, Lucy will explain what ammonites are and how scientists use their fossils to understand what they looked like, what they ate, and how they lived. She’ll help students hone their pattern recognition skills by comparing fossil ammonites to related, living animals today like squid and ...Check out our ammonite fossil selection for the very best in unique or custom, handmade pieces from our metaphysical crystals shops.Ammonoids are a group of extinct marine mollusc. These molluscs, commonly referred to as ammonites, are more closely related to living coleoids (octopuses, ...Ammonite and nautiloid fossils have been prized from antiquity for their mesmerizing logarithmic spiral. In Hindu religion they are held sacred as saligram (a Nepali example is included here), a reminder of the unfolding of the universe by Lord Vishnu the creator. They are the shells of extinct cephalopods, related to the modern pearly nautilus.Ammonite. Ammonites [1] were marine cephalopod molluscs of the subclass Ammonoidea. [2] Their widely-known fossils show a ribbed spiral-form shell, in the end compartment of which lived the tentacled animal. These creatures lived in the seas from at least 400 to 65 million years ago.Madagascar Ammonite Fossils for sale. Top quality fossil specimens, great selection and prices. FossilEra guarantees the authenticity of all of our fossils. Customer Service: (866) 550-2013 19,000+ Reviews Login. Cart (0) FOSSILERA. FOSSILS. CRYSTALS. METEORITES. NEW. ABOUT. Fossils.The appearance of the abundant index ammonoids A. minor (Fig. 3A–D) within the fossiliferous interval (= abundance zones or “ammonoid beds”, characterized by abundance or mass-occurrence of ...'Death drag' of ancient ammonite fossil digitized and put online. May 11, 2017. Giant sea lizard fossil shows diversity of life before asteroid hit. May 12, 2021.Jan 5, 2022 · The ammonite fossil used in the Geology study was discovered in 1998 at the Claydon Pike pit site in Gloucestershire, England, which mostly comprises poorly cemented sands, sandstone, and limestone. Ammonite shells traditionally preserve well and are relatively common fossils. We have a large selection of ammonite fossils for sale that come from every corner of the world. Aside from the exciting natural history aspect, ammonite fossils make supremely aesthetic gifts and decorations.WHITE FOSSIL JURASSIC AMMONITE ON LARGE LIMESTONE BLOCK *AMX289. $295.00. Genuine Ammonite Fossils for sale. We offer the finest and rarest Ammonite Fossils with Authenticity Certificates. About Ammonites. Ammonites were predatory mollusks that resembled squid. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. Ammonites first appearing in the fossil record 240 million years ago, descending from straight shelled cephalopods. Ammonites were marine animals belonging to the phylum Mollusca and the class Cephalopoda. They had a coiled external shell similar to that of the modern nautilus. In other living cephalopods, e.g. octopus, squid and cuttlefish, the shells are small and internal, or absent.In the fossil record, some cephalopods such as ammonoids are abundant and widely distributed, thus making them ideal model organisms to understand diversification dynamics.WHITE FOSSIL JURASSIC AMMONITE ON LARGE LIMESTONE BLOCK *AMX289. $295.00. Genuine Ammonite Fossils for sale. We offer the finest and rarest Ammonite Fossils with Authenticity Certificates. Madagascar Ammonite Fossils for sale. Top quality fossil specimens, great selection and prices. FossilEra guarantees the authenticity of all of our fossils. Customer Service: (866) 550-2013 19,000+ Reviews Login. Cart (0) FOSSILERA. FOSSILS. CRYSTALS. METEORITES. NEW. ABOUT. Fossils.The ancient fossil was considered Ammon’s stone, thus inheriting the name, ammonite. Ammonites belong to the class of animals called mollusks. More specifically they are cephalopods. and first appeared in the lower Devonian Period. It is thought by some that they evolved from the older nautiloids. One ammonite species found in Antarctica, Diplomoceras cylindraceum, could grow up to 2 meters long and featured a distinctive paperclip-shaped, uncoiled shell. “Although it’s a totally unusual shape, it was clearly very successful at what it did, because fossils of this same species are found all over the world.About Ammonites. Ammonites were predatory mollusks that resembled squid. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a living octopus, though the shells resemble that of a nautilus. Ammonites first appearing in the fossil record 240 million years ago, descending from straight shelled cephalopods. Ammonite is one of many works of fiction centered on Anning. In 2009, Tracy Chevalier detailed a fictionalized account of Anning and her relationship with fellow fossil collector Elizabeth Philpot ...Pyritized Ammonite Jurassic Russia. Minerals can replace bone, shell, wood, and even soft body parts as they dissolve away due to the action of water and decay. ... If replacement results in a fossil that is completely articulated with three-dimensional fidelity the process is referred to as mineral replication (Grimaldi and Engel, 2005, p. 45Only a few goniatites' full trophic apparatuses have ever been described, and reports of stomach contents in these creatures' fossils remain questionable at best. However, goniatites clearly lacked the calcified jaw apparatuses developed in later ammonites; this has been cited as evidence against their having a durophagous (shell-crushing) diet.The shell, which has left such exquisite traces in the fossil record of ammonoids, also features prominently in the evolutionary story of coleoids — but as a vanishing act. With the exception of the shelled Nautilus and Allonautilus, all of today’s living cephalopods are coleoids without an external shell. Coleoids share a common ancestor ...Ammonite. Ammonites [1] were marine cephalopod molluscs of the subclass Ammonoidea. [2] Their widely-known fossils show a ribbed spiral-form shell, in the end compartment of which lived the tentacled animal. These creatures lived in the seas from at least 400 to 65 million years ago.May 2, 2017 · While ammonites seem to have inhabited a range of environments including reefs, their fossils are only occasionally common in places where coral reefs or crinoids dominate. On the other hand, sediments that contain lots of oysters, bivalves, belemnites and burrowing echinoids are often good places to find ammonites. Fig. 2. Ammonite Fossils and Sizes. Aside from protecting the soft parts, its shells were meant to be filled with gasses or fluids. Around the early Jurassic period, its sizes would range an average of 9 inches (53 cm) up to 6.5 feet (2 meters), which is the largest ammonite found in Europe. The largest ammonite fossil found in North America was from ...Ammonite Fossil SVG DXF PDF File Ancient life dinosaur T-shirt decal sticker poster wall art Cricut laser engraver iron on heat transfer (31) $ 2.00. Add to Favorites 1PC Natural Ammonite Fossil Stents,Ammonoid Base,Ammonoid Stand,Home Decoration,Mineral Specimen,Ammonite Fossil Holder,Gifts 20g+ ...First ever 3D visualisation of an ammonite's muscles show how it swam and evaded predators before going extinct with the dinosaurs 66 million years ago Experts led from Cardiff University took X ...Madagascar Ammonite Fossils for sale. Top quality fossil specimens, great selection and prices. FossilEra guarantees the authenticity of all of our fossils. Customer Service: (866) 550-2013 19,000+ Reviews Login. Cart (0) FOSSILERA. FOSSILS. CRYSTALS. METEORITES. NEW. ABOUT. Fossils.Ammonite. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ammonitida Family: Kosmoceratidae Genus: Kepplerites (Gowericeras) Species: Kepplerites (Gowericeras) toricelli: Kellaways Formation Koenigi zone gowerianus subzoneOriginal file (SVG file, nominally 843 × 851 pixels, file size: 558 KB)October 19th, 2021. Ammonites are a family of prehistoric marine mollusks that lived from roughly 400 million years ago to 66 million years ago. They’re known for their tightly …Based on the fossil record, ammonites came in a wide range of sizes and shapes, from smaller than an inch to as large as nine feet wide. Some ammonites had long, straight shells, while others...Small Ammonite Nodules x10 ammonite fossil - Whitby, North Yorkshire Jurassic Coast, Yorkshire fossils Regular price £70.00 GBP Regular price Sale price £70.00 GBPAmmonite The Unbelievably Beautiful Fossil and Gem Sunday, January 3, 2016 Written by Gemexi Posted In Jewelry . Ammonite is a beautiful and charming fossil gemstone. The ammonites were actually marine creatures that existed around four hundred million years ago. The ancient fossil was considered Ammon’s stone, thus inheriting the name, ammonite. Ammonites belong to the class of animals called mollusks. More specifically they are cephalopods. and first appeared in the lower Devonian Period. It is thought by some that they evolved from the older nautiloids. They died out 66 million years ago. In medieval Europe, people thought ammonites were fossilized snakes.Ammonite. Kingdom: Animalia Phylum: Mollusca Class: Cephalopoda Order: Ammonitida Family: Kosmoceratidae Genus: Kepplerites (Gowericeras) Species: Kepplerites (Gowericeras) toricelli Kellaways Formation …Jan 31, 2021 ... A fossil of a 150 million-year-old ammonite in southern Germany with its insides on the outside.Figure 5: This picture illustrates an ammonite fossil which is a common index fossil for the Mesozoic as they are found all over the world for short periods of time with rapid evolution. In medieval times people believed ammonite fossils were serpents God had coiled up and turned to stone but now we know they are cephalopods related to the ...Approximately 300 come from Madagascar, including some from the Jurassic Period. At first glance the steely gray shells of ancient Malagasy ammonites might look like nondescript stones. But look more closely—and inquire a little more deeply—and you’ll find, to quote the poet Walt Whitman, these fossils “encompass worlds.”. The ...Whether it is the shape or the shell, or both, ammonite fossils possess an inherent beauty seemingly pleasing to everyone's eyes. Just as Fibonacci numbers are ...ous layer of the shell of specific fossil ammonites (figure 2) found in the Bearpaw Formation of Late Cretaceous age (figure 3). Commercial quantities of gem-quality Ammolite have been reported only from southern Alberta and only from the two ammonite species Placenticeras meekiand P. inter-calare. Ammonite is a paleontologic term applied to3.15" Flashy Ammolite (Fossil Ammonite Shell) - Alberta, Canada. This is a 3.15" wide, section of brilliant, iridescent ammolite from the Bear Paw Shale of Alberta, Canada. This piece has a full rainbow of colors with lots if very flashy red, orange, and green hues. Ammolite is an opal-like gemstone found primarily in Alberta, Canada.Introduction: Ammonoids (Ammonoidea) are an extinct group of marine invertebrates with an external shell. They were cephalopods, and hence closely related ...In 1998, Neville Hollingworth, an avid-fossil hunter, discovered an exceptionally well-preserved ammonite in an open gravel pit in Gloucestershire in 1998. It was unusual because it contained the ...Middle Triassic Ammonoid Fossils From Nevada. Visit a world-famous fossil locality in the Great Basin Desert of Nevada, a specific place that yields some 41 species of ammonoids, in addition to five species of pelecypods and four varieties of belemnites from a geologic section of the middle Triassic Prida Formation; many paleontologists consider this specific site the single best middle ...Ammonites are one of the most commonly found and well recognised fossils. They are extinct marine creatures. They had a big head, large eyes and tentacles but ...Ammonites are an group of marine animals of the subclass Ammonoidea in the class Cephalopoda. They are excellent index fossils, and it is often possible to link the rock layer in which they are found to specific geologic time periods. Their fossil shells usually take the form of planispirals, although there were some helically-spiraled and non-spiraled forms (known as "heteromorphs"). Their ...Fossil, remnant, impression, or trace of an animal or plant of a past geologic age that has been preserved in Earth’s crust. The complex of data recorded in fossils worldwide—known as the fossil record—is the primary source of information about the history of life on Earth.These ammonite nodules are incredibly common in that location, he's probably finding several a day, or a dozen after heavy rain. He knows what he's doing and no paleo is going to use more delicate tools to crack an ammonite. ... Plus ammonites are marine fossils (kinda like a nautilis, which is basically a weird squid with a shell), which means ...Ammonoids had a long and successful tenure in the world's oceans, spanning about 300 million years. ... Based on shell size and aggregations of embryonic ammonoids found in the fossil record ...Ammonoids originated in the Devonian period and have a fossil record that spans until the end of the Cretaceous period, when they went extinct. Phanerozoic genus-level diversity of Ammonoidea (graph generated …Apr 17, 2023 · Ammonite fossils are the preserved remains of ammonoids, which were marine creatures with a spiral shell that resembled a ram’s horn. These fossils are often found in sedimentary rocks, such as limestone and shale, and can provide valuable insights into the evolution and ecology of ancient marine life. Sharing ammonite fossils from the Smithsonian’s collection, Lucy will explain what ammonites are and how scientists use their fossils to understand what they looked like, what they ate, and how they lived. She’ll help students hone their pattern recognition skills by comparing fossil ammonites to related, living animals today like squid and ...Ammonoids were common in the oceans of the late Paleozoic and Mesozoic eras, from about 400 to 65 million years ago, becoming extinct at the same time as the dinosaurs. Although not accurately known, one estimate of the life span of the ancient ammonoids is 4-36 years. Special Notes. Ammonoids are commonly used as index fossils.Ammolite is a trade name given to a thin iridescent aragonite shell material that is found on two species of extinct ammonite fossils (Placenticeras meeki and Placenticeras intercalare). Other less-frequently used trade names for Ammolite are "Calcenite" and "Korite." It is also known simply as "ammonite shell." Ammolite is a rare material.Madagascar Ammonite Fossils for sale. Top quality fossil specimens, great selection and prices. FossilEra guarantees the authenticity of all of our fossils. Customer Service: (866) 550-2013 19,000+ Reviews Login. Cart (0) FOSSILERA. FOSSILS. CRYSTALS. METEORITES. NEW. ABOUT. Fossils.Ammonite fossils, an example is shown here, are sea creatures that became extinct about 65 million years ago. The fossil record Fossil remains have been found in rocks of all ages.A variety of ammonite forms, from Ernst Haeckel's 1904 Kunstformen der Natur.. This list of ammonites is a comprehensive listing of genera that are included in the subclass †Ammonoidea, excluding purely vernacular terms.The list includes genera that are commonly accepted as valid, as well those that may be invalid or doubtful (nomina …Description: Cut & Polished ammonite halves. Fossil specimen includes fossil stands. Ammonite shows internal chamber septa. Paleontologists suggest the fossil ammonite added a new chamber for each year of life. The large non-chambered section at the fossil end, is the "living chamber" where the fossil ammonite lived. Total price: $ 142.00The sutures of nautiloids are by comparison somewhat simpler, being either straight or slightly curved, whereas later ammonoids showed suture patterns of increasing …Ammonite The Unbelievably Beautiful Fossil and Gem Sunday, January 3, 2016 Written by Gemexi Posted In Jewelry . Ammonite is a beautiful and charming fossil gemstone. The ammonites were actually marine creatures that existed around four hundred million years ago.Science. Reference. What are ammonites, and how did they come to rule the prehistoric seas? Earth once hosted more than 10,000 species of these ancient marine predators. …Nov 10, 2021 · The largest ammonite fossil ever discovered belongs to the species Parapuzosia seppenradensis; the fossil, which was found in Germany in 1895, has a gargantuan shell measuring 5.7 feet (1.7 m) across. nature-microscope-photo-video stock photos and videos. Ammonoidea. Ammonite. Fossil. Cretaceous, Ammonites, Photos, Fossils, Mesozoic, Cretaceous, ...Ammonite is one of many works of fiction centered on Anning. In 2009, Tracy Chevalier detailed a fictionalized account of Anning and her relationship with fellow fossil collector Elizabeth Philpot ...Ammonoid, any of a group of extinct cephalopods (of the phylum Mollusca), forms related to the modern pearly nautilus (Nautilus), that are frequently found as fossils in marine rocks dating from the Devonian Period (began 419 million years ago) to the Cretaceous Period (ended 66 million years ago).Jan 31, 2021 · This Ammonite Was Fossilized Outside Its Shell. The bizarre fossil is one of very few records of soft tissue in a creature better known as a whorled shell. 15. A fossil of a 150 million-year-old ... An ammonite is a prehistoric marine animal belonging a now-extinct group of mollusks known as Ammonoidea. Specifically, ammonites are ammonoids of order Ammonitida, but the term ammonite is also used to refer to all ammonoids. (On this page we’ll use the more specific definition unless specified.) A typical ammonite fossil.Orthoceras Meanings, Zodiacs, Planets, Elements, Colors, Chakras, and more. Science & Origin of OrthocerasOrthoceras, also known as Orthoceratites, is a genus of extinct nautiloid cephalopod. Its name is derived from the words “straight horn”, referring to it’s long, conical shell. These creatures roamed the seas during the Ordovician Period (485 million - 443 …Ammonite is a stand-alone fossil that can be donated to the museum in all Animal Crossing games except New Leaf and can be collected by Happy Home Handbook in Happy Home Designer. When the player presents the ammonite to Blathers at the museum in Animal Crossing, he will reply with the following dialogue: "Well! Hoo and hoo again! An ammonite! My stars! A very impressive find! Ah yes ...Fossil ammonites found in the North State range in size from half an inch to 18 inches across, Reed said, but some found in other parts of the world are as big as three feet across. The group of ...Apr 13, 2021 ... ... dinosaurs. If you look at the fossil shells of ammonoids over the course of that 340 million years, you'll notice something striking--as ...Pyritized Ammonite Jurassic Russia. Minerals can replace bone, shell, wood, and even soft body parts as they dissolve away due to the action of water and decay. ... If replacement results in a fossil that is completely articulated with three-dimensional fidelity the process is referred to as mineral replication (Grimaldi and Engel, 2005, p. 45Ammonites are an extinct group of marine animals belonging to the cephalopod subclass Ammonoidea. They lives from the Devonian until Late Cretaceous (417 - 65 ...Phylum Mollusca. Class Cephalopoda. Sub-Class Ammonoidea. Ammonites are a distinctive class of extinct invertebrates within the Phylum Mollusca. These spectacular looking marine animals thrived in the Paleozoic and Mesozoic Eras, which equates to approximately 408 to 65 million years ago. The sutures of nautiloids are by comparison somewhat simpler, being either straight or slightly curved, whereas later ammonoids showed suture patterns of increasing …
This is a beautiful, 8.9" wide, cut and polished Cleoniceras ammonite fossil from Ambatolafia, Madagascar. These ammonites are Late Cretaceous (Albian Stage) stage in age, or approximately 110 million years old. It exhibits gorgeous mineralization within the chambers, each separated by white calcite septa (divisions).. Wilt chamberlain retirement
Please note that we are currently experiencing intermittent issues with the Learning Lab. Users may experience limited usability. ... (Read More) This collection can be used as a pre- and post-resource to support the free Smithsonian Science How webcast video, Exploring Fossil Ammonoids with Paleob...Sep 20, 2023 · A lethal final meal preserved the only intact ammonite found in a fossil bed. Jeanne Timmons - Sep 20, 2023 2:57 pm UTC Enlarge / The fish in question, with the ammonite located just below its spine. Closeup of many ammonite prehistoric fossil on the surface of the stone, Archeology and paleontology concept. vector abstact seamless pattern background with sea stone texture with imprints of shells of ancient ammonite shells. Suitable for wallpaper design, wrapping paper, fabric, ceramic tiles. Ammonite fossil isolated on a white background.Figure 5: This picture illustrates an ammonite fossil which is a common index fossil for the Mesozoic as they are found all over the world for short periods of time with rapid evolution. In medieval times people believed ammonite fossils were serpents God had coiled up and turned to stone but now we know they are cephalopods related to the ...This is a 4.6" wide, Late Jurassic ammonite (Hemilytoceras) fossil collected near the town of Sakaraha in the Tulear Province of Madagascar. It comes with an acrylic display stand. Ammonites were predatory mollusks that resembled a squid with a shell. These cephalopods had eyes, tentacles, and spiral shells. They are more closely related to a ...An intrusion is a body of igneous rock formed within Earth's crust. When two features intersect, the one that cuts through the other is younger. This is known as the law of crosscutting relationships. Some strata contain index fossils, or fossils associated with a specific time in Earth's history. If the same index fossil is found in ...Whether it is the shape or the shell, or both, ammonite fossils possess an inherent beauty seemingly pleasing to everyone's eyes. Just as Fibonacci numbers are ...Ammolite is a trade name given to a thin iridescent aragonite shell material that is found on two species of extinct ammonite fossils (Placenticeras meeki and Placenticeras intercalare). Other less-frequently used trade names for Ammolite are "Calcenite" and "Korite." It is also known simply as "ammonite shell." Ammolite is a rare material.The fossil resembles that of an ammonite, a sea creature that lived around 400 million years ago. Similar to how the other unidentified fossils appear to resemble fossils from the Pokémon franchise, the unidentified large fossil seems to resemble the Helix Fossil.Ammonite Fossil via Coal Creek. Head out on this 2.5-mile out-and-back trail near Fernie, British Columbia. Generally considered a moderately challenging route, it takes an average of 1 h 20 min to complete. This is a popular trail for hiking, but you can still enjoy some solitude during quieter times of day.2.25" Red Flash Ammonite Fossil - Madagascar $17 1.1" Iridescent Ammolite (Fossil Ammonite Shell) - Alberta $35 4.3" Ammonite (Placenticeras) Fossil - Eastern Montana $195 7.1" Fossil Ammonite (Placenticeras) - South Dakota $155 11.7" Ammonite Fossil With Mosasaur Bite Marks - Precious Ammolite! ...Fossil, remnant, impression, or trace of an animal or plant of a past geologic age that has been preserved in Earth’s crust. The complex of data recorded in fossils worldwide—known as the fossil record—is the primary source of information about the history of life on Earth.ous layer of the shell of specific fossil ammonites (figure 2) found in the Bearpaw Formation of Late Cretaceous age (figure 3). Commercial quantities of gem-quality Ammolite have been reported only from southern Alberta and only from the two ammonite species Placenticeras meekiand P. inter-calare. Ammonite is a paleontologic term applied toFossil (BLUE) 23: Leaf Fossil (Hard Map from Jungle Map Vendor) 24: Trilobite Fossil (Hard Map from North Vendor) 25: Ammonite Fossil (Hard Map from Main City Map Vendor) 26: Shark Tooth (See Map. Bring metal detector to ‘X’ mark) 27: Shell (See Map. Bring metal detector to ‘X’ mark) Caves (PURPLE) 28. Giant Jade Crystal (See Map.In the fossil record, some cephalopods such as ammonoids are abundant and widely distributed, thus making them ideal model organisms to understand diversification dynamics.Ammonites, despite various limitations, provide the primary reference scale for the majority of the marine Cretaceous sequences in all paleogeographic regions.The Lower Cretaceous standard zonation is the Tethyan ammonite succession of the western Mediterranean region with its revised and enhanced zonal schemes developed by the Kilian working group (e.g., Reboulet et al., 2006, 2009, 2011, 2018).Fossils are often said to take a million years to form. However, as of 2014 it has been proven that a fossil can take a shorter period of time to form. This period can be a thousand years or less.The team found the ammonites P. seppenradensis and its smaller cousin, P. leptophylla, on both sides of the Atlantic, with widths ranging from 0.3-4.8 feet (0.1-1.48 m).Middle Triassic Ammonoid Fossils From Nevada. Visit a world-famous fossil locality in the Great Basin Desert of Nevada, a specific place that yields some 41 species of ammonoids, in addition to five species of pelecypods and four varieties of belemnites from a geologic section of the middle Triassic Prida Formation; many paleontologists consider this specific site the single best middle ...Ammonite The Unbelievably Beautiful Fossil and Gem Sunday, January 3, 2016 Written by Gemexi Posted In Jewelry . Ammonite is a beautiful and charming fossil gemstone. The ammonites were actually marine creatures that existed around four hundred million years ago..