Fossil 'Alien' Rastellum Bivalve

Cretaceous Period, 120 million years B.P. A polished Rastellum bivalve, also known as ‘fossil aliens’ due to their unique shape. 134 grams, 71 mm (2 3/4 in.). From the Marovoay, Mahajanga district

Cretaceous and Miocene Periods, 145-5 million years BP. Group comprising polished Cretaceous Rastellum sp. oyster, often called 'Fossil Aliens' and Miocene Mercenaria sp. clam bivalve shells. 275 gram

Pleistocene Period, 2.6 million years-11,700 years BP. A fossil bivalve from the Tamiami Formation, Venice, Florida, USA. 989 grams, 15cm (6"). From an old Bristol palaeontological collection, acquire

Pleistocene Period, 50-30 million years BP. A large fossil Mercenaria campechiensis bivalve. 315 grams, 14.5cm wide (5 3/4"). From the James City Formation, Beaufort County, NC, USA. Acquired 1950s-19

Eocene Period, 50 million years B.P. A large polished bivalve shell fossil. 214 grams, 78 mm (3 in.). From Madagascar. Private Shropshire, UK collection. [No Reserve]

A carefully shaped and polished undated archaistic black fossiliferous limestone sculpture showing cross-sections of fossil bivalves. 6.85 kg, 20cm (8"). From an old London collection, formed in the 1

Museum Quality Fossil Gastropod, Bi-valve, and Coral Shell Fossil Sphere Tethys Sea, Pakistan Triassic

Pleistocene Period, 2.6 million years-11,700 years B.P. A group of 100 mixed historic fossils comprising mostly bivalves and small pieces of coral. 2 kg total, 21-50 mm (3/4 - 2 in.). Gregory & Bottle

Thousand Planet Auction House Treasure Auction Day, all major kinds of Mineral, you will find in today's auctions. Join us and add our auction into your calendar. Today auction including Artifacts, Mi

Details: Isognomon fossil from Calvert Cliffs, Maryland, Miocene. Approximately 15-27 million years years old. This fossil measures 6" on the longest side. Isognomon is a genus of marine bivalve mollu

Lot of 7 fossil specimens, including 1 trilobite, 1 ammonite, 4 bivalves and 1 fern. Nice addition for your fossil collection. Dimensions range from 2.5 in h x 1.5 in w x 1 in d to 7 in h x 4 in w x 1

Cretaceous Period, 130-60 million years BP. A group of marine fossils comprising: a large ammonite in matrix; a pair of gastropods in matrix; a matrix containing several small bivalves; three very lar

Carboniferous-Cretaceous Period, 359-66 million years BP. A group of six fossils of different cllasses and periods, including four bivalves, a goniatite, and an ammonite, five in old white card trays

Moroccan Jurassic fossil with five starfish and great detail. 7” x 8.5” x 1”. 3.1 pounds.

Exceptional Moroccan Jurassic fossil with three starfish and great detail.

Scyphocrinite fossil plate from Morocco.

Twelve pound unpolished Texas ammonite fossil. 8.5" x 10" x 3".

Large 24" orthoceras fossil tower. 24" x 6" x 5". 22.8 pounds.

Ten Knightia fish fossil from the Green River in Wyoming. 3.13 pounds.

Eighteen pound orthoceras fossil plate.

Carved orthoceras fossil horn from Morocco.

Moroccan Jurassic three starfish fossil. 4" x 7.75" x 0.5". 1.1 pounds.

Twenty-one inch orthoceras fossil tower. 17.13 pounds.

Twenty inch orthoceras fossil tower. 20" x 5" x 4". 21 pounds.