Fossil Gastropods: Where They’re Found, Identification & More
Gastropods, known commonly as snails and slugs, represent an incredibly large taxonomic class of invertebrates living in fresh and saltwater as well as on land. The majority of gastropods …
Fossil Record of Gastropoda - Digital Atlas of Ancient Life
Gastropods have left behind an extraordinary fossil record that documents a rich evolutionary history. They are distinctive among animals for their high taxonomic, ecological, and …
Gastropoda - Wikipedia
Gastropoda (previously known as univalves and sometimes spelled "Gasteropoda") are a major part of the phylum Mollusca, and are the most highly diversified class in the phylum, with …
Gastropoda (snails), Fossils, Kentucky Geological Survey, …
2023年1月5日 · Gastropods are snail-like and slug-like invertebrate (lacking a backbone) animals, and are types of mollusks. Snails have hard mineral shells; slugs lack shells. Because fossils …
Class Gastropoda - Digital Atlas of Ancient Life
2021年9月16日 · Overview of the biology of modern gastropods (snails and slugs), their classification and evolution, and their fossil record.
Gastropod Mollusks: Snails – WGNHS – UW–Madison
Gastropods are the most abundant mollusks: There are approximately 40,000 living species and 50,000 fossil species. Once confined to the oceans, gastropods now live in streams, lakes, …
Exclusive: Stunning snail found in dinosaur-era amber - National …
2018年10月11日 · A record-setting fossil from Myanmar reveals the detailed anatomy of ancient snails' soft tissues.
Gastropods - British Geological Survey
During the Carboniferous, gastropods began to live in fresh water and terrestrial snails probably evolved from these species. Life out of the water brought two big problems: how to breathe …
Anchura | Gastropod, Marine, Cretaceous | Britannica
Anchura, genus of extinct marine gastropods (snails) found as fossils only in marine deposits of Cretaceous age (between 145.5 million and 65.5 million years old). It is thus a useful guide or …
Platyceras | Gastropod, Paleozoic, Carboniferous | Britannica
Platyceras, genus of extinct gastropods (snails) that occurs as fossils in rocks of Silurian to Permian age (about 444 million to 251 million years ago). Its distinctive shape is easily …