| Chonetes | |
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| Chonetes gracilis internal mould | |
| Scientific classification | |
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| Genus: | Chonetes Fischer de Waldheim 1830 |
| Species | |
See text | |
Chonetes is an extinct genus of brachiopods. It ranged from the Late Ordovician to the Middle Jurassic. [1]
The following species of Chonetes have been described: [1]
Laurent-Guillaume de Koninck was a Belgian palaeontologist and chemist, born at Leuven.
Notoplax is a genus of chitons in the family Acanthochitonidae.
Craspedochiton is a genus of chitons in the family Acanthochitonidae, endemic to New Zealand, the Philippines and Australia.
Trochoidea is a superfamily of small to very large vetigastropod sea snails with gills and an operculum. Species within this superfamily have nacre as the inner shell layer. The families within this superfamily include the Trochidae, the top snails. This superfamily is the largest vetigastropodan superfamily, containing more than 2,000 species.
Campodus is an extinct genus of eugeneodont holocephalans from the Carboniferous. Likely one of the earliest and most basal caseodontoids, it can be characterized by its broad, ridge-ornamented crushing teeth made of various types of dentine. The type species, C. agassizianus, was originally described in 1844 based on a small number of teeth from the Namurian of Belgium.
The Anomphalidae is an extinct family of fossil sea snails, marine gastropod mollusks. These are archaeogastropods which are included in the suborder Trochina. The Anomphalidae lived during the Paleozoic, from the Silurian to the Middle Permian. According to some authorities these snails belong instead to the Euomphalacea.
Euspira is a genus of medium-sized sea snails, marine gastropod molluscs in the subfamily Polinicinae of the family Naticidae, the moon snails.
Pleurotomaria is an extinct genus of sea snails, marine gastropod molluscs in the family Pleurotomariidae.
Ancistrosyrinx is a genus of sea snails, marine gastropod mollusks in the family Cochlespiridae.
Ithycythara is a genus of small sea snails, marine gastropod mollusks in the family Mangeliidae.
The Palaeontographical Society is a learned society, established in 1847, and is the oldest extant Society devoted to the advancement of palaeontological knowledge.
Camarotoechia is an extinct genus of brachiopods found in Paleozoic strata.
C. elegans most commonly refers to the model round worm Caenorhabditis elegans. It may also refer to any of the species below. They are listed, first in taxonomic order and, second, alphabetically.
Cladodus is an extinct genus of cartilaginous fishes in the family Cladoselachidae. As the name implies, they are a type of cladodont, primitive sharks with teeth designed to snag fish and swallow them whole, instead of sawing off chunks to swallow.
Clavagella is a genus of marine bivalves in the family Clavagellidae.
Tetracus is an extinct genus of gymnures. Species are from the Oligocene of Belgium and France. Fossils can also be found in the Bouldnor Formation in the Hampshire Basin of southern England.
Craspedopoma is a genus of operculate land snails in the family Craspedopomatidae.
Plicochonetes is an extinct genus of brachiopods in the extinct family Rugosochonetidae.
Cosmacanthus is an extinct genus of placoderms in the extinct family Groenlandaspididae that lived during the Late Devonian in Ireland, the UK, Russia and North America. It was named by Louis Agassiz in 1845.
The Floresta Formation is a geological formation of the Altiplano Cundiboyacense in the Eastern Ranges of the Colombian Andes. The sequence of siltstones, shales, coquinas and sandstone beds dates to the Devonian period; Late Emsian, Eifelian and Early Givetian epochs, and has a maximum thickness of 600 metres (2,000 ft). The unit is highly fossiliferous; brachiopods, bryozoans, gastropods, trilobites, corals and bivalves have been found in the Floresta Formation. Some fragments of Placoderm fish fossils were found in the Floresta Formation, while the overlying Cuche Formation is much richer in fish biodiversity.
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