Cimolodon is a genus of the extinct mammal order of Multituberculata within the suborder Cimolodonta and the family Cimolodontidae. Specimens are known from the Late Cretaceous of North America.
Anconodon is an extinct genus of mammal from the Paleocene of North America, and thus lived just after the "age of the dinosaurs". It was a member of the extinct order Multituberculata within the suborder Cimolodonta and possibly the family Cimolodontidae.
Essonodon is a mammal genus from the Upper Cretaceous of North America. It was a member of the extinct order Multituberculata and lived towards the end of the "age of the dinosaurs." It is within the suborder Cimolodonta and perhaps the family Cimolomyidae.
The Hexanchiformes are a primitive order of sharks, numbering just seven extant species in two families. Fossil sharks that were apparently very similar to modern sevengill species are known from Jurassic specimens.
This page features lists of species and organisms that have become extinct. The reasons for extinction range from natural occurrences, such as shifts in the Earth's ecosystem or natural disasters, to human influences on nature by the overuse of natural resources, hunting and destruction of natural habitats.
The conservation status of a group of organisms indicates whether the group still exists and how likely the group is to become extinct in the near future. Many factors are taken into account when assessing conservation status: not simply the number of individuals remaining, but the overall increase or decrease in the population over time, breeding success rates, and known threats. Various systems of conservation status are in use at international, multi-country, national and local levels, as well as for consumer use such as sustainable seafood advisory lists and certification. The two international systems are by the International Union for Conservation of Nature (IUCN) and The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES).
The gray-lined hawk is a smallish raptor found in open country and forest edges. It is sometimes placed in the genus Asturina as Asturina nitida. The species has been split by the American Ornithological Society from the gray hawk. The gray-lined hawk is found from El Salvador to Argentina, as well as on the Caribbean island of Trinidad.
Emmelichthys nitidus, the Cape bonnetmouth, bonnetmouth, redbait, pearl fish, picarel, red baitfish, red herring or Southern rover, is a species of marine ray-finned fish belonging to the family Emmelichthyidae, the rovers and bonnetmouths. This species is found in the Indian and Pacific oceans. This species is of minor importance to commercial fisheries.
Ctenopharynx nitidus is a species of fish in the family Cichlidae. It is endemic to Lake Malawi.
Aviculopecten is an extinct genus of bivalve mollusc that lived from the Early Devonian to the Late Triassic in Asia, Australia, Europe, North America, and South America.
Sphoeroides nitidus is a species in the family Tetraodontidae, the pufferfishes. It is native to the Southwest Pacific, where it is known from New Zealand.
Bonnetmouth may refer to:
Rhabdoblennius nitidus, the barred-chin blenny, is a species of combtooth blenny found in coral reefs in the western Pacific ocean. This species reaches a length of 8.3 centimetres (3.3 in) SL.
Peltopleuridae were an extinct family of prehistoric bony fish. It is classified with the order Peltopleuriformes.
Emmelichthys is a genus of marine ray-finned fishes belonging to the family Emmelichthyidae, the rovers and bonnetmouths. The species in this genus are found in the Atlantic, Indian and Pacific Oceans.
Orthacodontidae is an extinct family of sharks. It is disputed as to whether it belongs to the modern shark order Hexanchiformes, or the extinct order Synechodontiformes. It contains two genera. Some other authors included it in Lamniformes.
The glittering pipefish is a species of marine coastal fish of the family Syngnathidae. It is found in the Western Pacific, from Viet Nam to Fiji and from the Ryukyu Islands to New Caledonia, where it inhabits corals, sand and reef flats to depths of 20 metres (66 ft).< It can grow to lengths of 7.3 centimetres (2.9 in), and is expected to feed on small crustaceans, similar to other pipefishes. It is secretive and rarely observed. This species is ovoviviparous, with males carrying eggs and giving birth to live young.
Sphenodus is an extinct genus of shark. It is placed as a member of the extinct family Orthacodontidae, which is either considered to be a member of the extinct order Synechodontiformes, or the modern shark order Hexanchiformes. 29 species have been described, though some of these are likely synonyms, which span from the Early Jurassic (Sinemurian) to Paleocene (Danian). Most species are only known from isolated teeth, though the species Sphenodus macer and Sphenodus nitidus from the Late Jurassic of Germany are known from skeletons. These suggest that it was relatively large, with a body length of 2–3 metres (6.6–9.8 ft), with a fusiform body with a single dorsal fin placed posteriorly without a fin spine. The teeth of Sphenodus consist of a single long, narrow central cusp, with much smaller lateral cusplets. Species of Sphenodus are thought to have been actively swimming predators.
Fossil of Pterygolepis nitidus, an extinct fish. Took the picture at Museum of Paleontology, Tübingen
Pterygolepis nitidus from Lower Silurian of Norway
