Mollusks
mollusks — pre-owned
Browse 2,803 mollusks — pre-owned on eBay — listings updated every few minutes. All items are pre-owned and sold by eBay sellers directly.
100 Top Quality Whole Rainbow Iridescent Ammonite Fossil, Mahajanga, Madagascar
50 Top Quality Superb Whole Natural Iridescent Ammonite, Mahajanga, Madagascar.
50 Top Quality Whole Rainbow Iridescent Ammonite Fossil, Mahajanga, Madagascar
50 Top Quality Superb Whole Natural Iridescent Ammonite, Mahajanga, Madagascar. Total weight is 11oz.
Beautiful 4.70lb-Goniatite Ammonite Fossil 11x10x3
Known for their intricate spiral shapes, Goniatite Ammonites were ancient mollusks that lived in the seas covering the world millions of years ago. This beautifully preserved fossil would make a fascinating addition to any collector's display, showcasing the beauty and history of prehistoric marine life.
Rare 19.26lb. 8,740g. Whole Goniatite Ammonite Fossil 11.5x9.25x4.25 in. #231
Item # 231. (292.10 x 234.95 x 107.95mm). I have owned this Goniatite many years.
Opalized Ammonite Fossil Specimen Invertebrate Marine Animals Large 1.5"
Opalized Ammonite Fossil Specimen ~ A beautiful example of the Fibonacci spiral exhibiting itself in nature, the Ammonite is a shelled nautilus that was part of a now extinct group of invertebrate marine animals. We were FINALLY able to restock a few more of these beauties - but they'll be fleeting I'm sure! These Opalized Ammonite specimens from Madagascar have a beautiful iridescent rainbow sheen. This natural opalization is a rare effect that is sometimes seen on these ancient fossils. You can expect that these Ammonite fossils may have chips or small abrasions, a normal characteristic of these natural specimens. This listing is for ONE (1) intuitively chosen crystal. Each piece has been handpicked and examined for quality.
You save $9.08
Gastropod Fossils-Turritella badensis- Athleta ficulina- Weitendorf, Austria
Offered for sale is a wide variety of unprepped Miocene (Badenian) Gastropods and Bivalves from a closed site in Weitendorf, Austria. This is a great group of fossils and in beautiful condition. Here is a chance to own some great fossils from a closed site.
Mystery bag of random fossils from Virginia **Please Read!**
Perfect for history enthusiasts, collectors, and educators for display or as a classroom activity. Sift n' Shovel Relics.
Two Fossil Scaphites Ammonite Pierre Shale, Todd Co., South Dakota
The product is a Two Fossil Scaphites Ammonite found in Pierre Shale, Todd Co., South Dakota, United States. This rare and unique fossil is a type of mollusk that existed millions of years ago, making it a valuable addition to any collection of rocks, fossils, and minerals. The presence of Baculite in the Pierre Shale adds to the significance of this find, making it a desirable item for collectors and enthusiasts of ammonites.
100 Top Quality Whole Rainbow Iridescent Ammonite Fossil, Mahajanga, Madagascar
50 Top Quality Superb Whole Natural Iridescent Ammonite, Mahajanga, Madagascar.
Petrified Oyster Shell, Fossil Canyon, Ocotillo Wells, California
Larger Split and Polished AMMONITE Fossil Madagascar 169gr
Hello, here is a very Nice and 100% natural Cleoniceras Ammonite fossil that has been cut in half and highly polished! 3 5/8" or 9.1cm at its biggest or from opposing side to side and TWO Display STANDS are included.
Sphenodiscus Lenticularis Ammonite Cretaceous Fox Hills Formation SD
The fossil in the scan will be what you'll receive. Absolutely no repairs or restorations. All of my fossils on ebay are from my private collection.
Agatized Fossil Clams - Morocco - 1 Per Purchase
A single Agatized Fossil Clam from Morocco. Locality: Morocco.
You save $0.90
Texas Cretaceous Fossil Ammonite Rare Real 10.4LBS 10LBS 9x8x4 Great Definition
Texas Cretaceous Fossil Ammonite Rare Real 10.4LBS 10LBS 9x8x4 Great Definition
Large Giant Ammonite Fossil Real 13lbs 14oz collectible ancient
This collectible mollusk fossil is a striking addition to any collection, showcasing the beauty and history of ancient marine life. bought this fossil about 20 years ago at the mineral show in Quartzite AZ.
3 Ammonite Fossil Real 8 lbs collectible ancient
The product is a set of three Ammonite fossils, weighing a total of 8 lbs, total originating from the United States. These ancient mollusk fossils are highly sought after by collectors and enthusiasts for their unique and fossilized appearance.
Big Split & Polished Cretaceous Era Cleoniceras AMMONITE Fossil Madagascar 155gr
Hello, here is a Big! 100% natural Cleoniceras Ammonite fossil that has been cut in half and highly polished on both sides! It has very well defined chambers with semi translucent Calcite Crystals and a few HOLLOW spots with Calcite Crystals!
Snail Sea Shell Turritella Unicorn Horn Fossil Sea Shell Display Case & ID Card
Tentacle (chemosensory, 2 or 4). The anatomy, behavior, feeding, and reproductive adaptations of gastropods vary significantly from one clade or group to another. Therefore, it is difficult to state many generalities for all gastropods.
You save $3.99
10 Top Quality Whole Rainbow Iridescent Ammonite Fossil, Mahajanga, Madagascar
10 Top Quality Superb Whole Natural Iridescent Ammonite, Mahajanga, Madagascar.
Fossil Scaphites Ammonite Pierre Shale, Todd Co., South Dakota
The product is a Fossil Scaphites Ammonite found in Pierre Shale, Todd Co., South Dakota, United States. This rare and unique fossil is a type of mollusk that existed millions of years ago, making it a valuable addition to any collection of rocks, fossils, and minerals. The presence of Baculite in the Pierre Shale adds to the significance of this find, making it a desirable item for collectors and enthusiasts of ammonites.
3 Large Scallop Fossils Chesapecten Jeffersonius Pliocene - York River Virginia
The product is a set of three large scallop fossils belonging to the Chesapecten jeffersonius species, found in the Pliocene deposits along the York River in Virginia, United States.
SUPER RARE Sliced Framed BLACK AMMONITE Lot Dinosaur Era Fossil One Per Order
Ammonites are cephalopods, like squid and octopi, except they had shells. Ammonites lived from 416 million years to 65 million years ago when they went extinct with the dinosaurs. An Ammonite’s shell is made up of individual chambers separated by a thin wall.
Large Polished Orthoceras & Ammonites Fossil Plaque 25 Lbs.
With Lucite Stand- 20” x 12.5”.
1 Large Orthoceras Fossil #1254
Orthoceras Fossil . For sale in this lot is one, very large. These are great for all your crafting needs or just to. These are a product of nature. As such they will be one. Any orders. Sorry but due to the.
Cut and Polished AAA Cleoniceras AMMONITE Fossil Madagascar 73.7gr
Hello, here is a 100% natural Cleoniceras Ammonite fossil that has been cut in half and highly polished on both sides! It has very well defined chambers with semi translucent Calcite Crystals and a few little Hollow spots with Calcite Crystals!
Orthoceras polished Fossil plate approx 8 in x 9 1/2 in and 3 lbs 7.4 oz
See photos.
Sphenodiscus Lenticularis Ammonite Cretaceous Fox Hills Formation SD
The fossil in the scan will be what you'll receive. Absolutely no repairs or restorations. All of my fossils on ebay are from my private collection.
MILLIONS Of Years Old Cretaceous Period Ammonite Fossil Ancash, PERU 2⅜" 69gr
These ammonites, likeProllyllceras peruvianum, are found in Cretaceous-aged rocks dating back 145 to 66 million years. AMMONITE Fossil. MILLIONS of Years Old. Early Jurassic Period. White box has ware and tear.
13.03lb. 5910g Jade Goat Horn Crystal Conch Ammonite Fossil #57
The stand the ammonite is sitting on I made from a yoga brick. I made a depression in the brick for the ammonite to sit in to. The yoga brick is included with the ammonite. 5910 grams.
FULL Exogyra Oyster Fossil - Cretaceous - TX – 1.409kg / 5.2in - Devil's Toenail
This is a full oyster fossil! Very different than most the Exogyra specimen on eBay. Sealed shut for ~100 million years. For display or to open and chance finding an ancient pearl. Measuring 5.17in (131.32mm) and 1.409kg (3.106lbs)!!!!!!! this fossil is of the largest on Ebay at over 5inches and 3lbs!! Found in Travis County in Central Texas. Fossil, from the Cretaceous Period, is up to 120 million years old. A unique addition to any collection of rocks, fossils, and minerals.
Fossilized Oyster From Hollister California (Crassostrea Titan)
This is a beautiful specimen of the Titan Oyster measuring 12” long and weighing in at a whopping 8 lbs, this was found many decades ago in Hollister, California. These massive Miocene-era oysters, approximately 10 million years old, can reach over 21 cm (8 inches) in length, highlighting that the area was once an ancient seabed. They are commonly found in sandstone, often preserved with distinct ribbing and heavy shell structure.
A Striking Baculite/Ammonite/Rare/iridescent/opalized Gem/ Ancient Fossil
The product is a striking piece of Baculite, an ancient fossil related to ammonites. This rare and iridescent gem-like fossil is opalized, giving it a unique and beautiful appearance. I found this piece in western ElPaso County, Colorado, in the Pierre Shale formation. Perfect for collectors of rocks, fossils, and minerals, this piece offers a glimpse into the prehistoric world and adds a touch of natural beauty to any collection.
Hand Carved Ammonite Orthoceras Fossil Bowl Ashtray Trinket Jewelry Tray 7”
This hand-carved Ammonite Orthoceras Fossil Bowl Ashtray Trinket Jewelry Tray is a unique and decorative piece for any collector or lover of natural history. The 7-inch size makes it a stylish addition to any desk, vanity, or shelf, while the intricate carving of Ammonite and Orthoceras fossils adds a touch of the past to any space. Perfect for storing small jewelry items or as a functional ashtray, this piece is both practical and beautiful, making it a versatile addition to any collection. It has natural cracks We use USPS and FedEx to ship. We use mostly recycled boxes to reduce waste at our landfills.
Iridescent Rainbow Whole Ammonite Fossil 635 gr. 1.40 lb. #648
Fossil Oyster from Niobrara Formation, Western Kansas
Orthoceras polished Fossil plate approx 7 in x 9 in and 3 lbs 11 oz
See photos.
Cut and Polished AAA Cleoniceras AMMONITE Fossil Madagascar 78.2gr
Hello, here is a 100% natural Cleoniceras Ammonite fossil that has been cut in half and highly polished on both sides! It has very well defined chambers with semi translucent Calcite Crystals and a few little Hollow spots with Calcite Crystals!
8lb 14oz Awesome nautilus Natural ammonite fossil Specimen from Madagascar
This beautiful NAUTILUS weighs over 8lbs 14ozs. The fossil nautilus in the photos is the exact fossil nautilus you will receive.
Ocean Jasper Orbicular Jasper Slice Natural Madagascar Eye Pattern
Ocean Jasper Orbicular Jasper Slice Natural Madagascar Eye Pattern
Orthoceras polished Fossil plate approx 8.5 in x 9.5 in and 4 lbs 9.5 oz
Originating from Morocco, this fossil plate features beautifully polished Orthoceras shells that are millions of years old. Collectors and enthusiasts of fossils and rocks will appreciate the unique and intricate designs of these ancient mollusks.