Search results
Results from the WOW.Com Content Network
Tuarangia is a Cambrian shelly fossil interpreted as an early bivalve, [1] though alternative classifications have been proposed and its systematic position remains controversial. [2] It is the only genus in the extinct family Tuarangiidae [ 3 ] and order Tuarangiida . [ 1 ]
Of Campanian age, this genus is widespread as a fossil in Cameroon, France, Poland, Austria, Germany and the United States. Fossils up to the Neogene have been found in Belgium , the United Kingdom , and Venezuela ( Pliocene Mare and Playa Grande Formations ) and Miocene Bulgaria , Chile , Colombia , Cyprus , Germany, India , Japan , Malta ...
Entobia in a bivalve shell, Florida.. Entobia is a trace fossil in a hard substrate (typically a shell, rock or hardground made of calcium carbonate) formed by sponges as a branching network of galleries, often with regular enlargements termed chambers.
The shells of bivalves are used in craftwork, and the manufacture of jewellery and buttons. Bivalves have also been used in the biocontrol of pollution. Bivalves appear in the fossil record first in the early Cambrian more than 500 million years ago. The total number of known living species is about 9,200. These species are placed within 1,260 ...
Anadara is a genus of saltwater bivalves, ark clams, in the family Arcidae. It is also called Scapharca. [1] This genus is known in the fossil record from the Cretaceous period to the Quaternary period (age range: 140.2 to 0.0 million years ago). These fossils have been found all over the world. [2]
Isognomon is a genus of marine bivalve mollusks which is related to the pearl oysters. [1] Isognomon is known in the fossil record from the Permian period to the Quaternary period (age range: 254.0 to 0.012 million years ago). Fossils of species within this genus have been found all over the world. [2]
Myophorella is a genus of fossil saltwater clams, marine bivalve mollusks in the family Trigoniidae. These bivalves are sometimes preserved with mineralized soft tissue. These bivalves are sometimes preserved with mineralized soft tissue.
Fossils of species within this very ancient genus can be found in sediments from the Devonian period to recent (age range: 409.1 to 0.0 Ma). [ 2 ] Modiolus bipartitus