The snowy egret is a small white heron. The genus name comes from Provençal French for the little egret, aigrette, which is a diminutive of aigron, 'heron'. The species name thula is the Araucano term for the black-necked swan, applied to this species in error by Chilean naturalist Juan Ignacio Molina in 1782.
Synaptomys is a genus of North American lemmings. These animals live in wet forested and open areas. They are small, cylindrical rodents with large heads and short ears, legs, and tails. They eat green vegetation such as grasses and sedges. They are often found in colonies.
Sand sharks, also known as sand tiger sharks, gray nurse sharks or ragged tooth sharks, are mackerel sharks of the family Odontaspididae. They are found worldwide in temperate and tropical waters. The three species are in two genera.
Cyclanorbis is a genus of softshell turtles in the family Trionychidae. The genus is endemic to Africa.
Ictidopappus is an extinct genus of mammals from extinct subfamily Ictidopappinae within extinct family Viverravidae, that lived in North America during the early Paleocene.
Hadrianus is an extinct genus of tortoise belonging to the Testudinidae found in the United States, the Yolomécatl Formation of Mexico, the Alai Beds of Kyrgyzstan and Spain and believed to be the oldest true tortoise known. The genus is thought to be closely related to the genus Manouria. The genus may have evolved in the subtropics of Asia and subsequently migrated to North America and Europe. Evangelos Vlachos (2018) reassessed the North American species attributed to the genus, and determined only two as accepted namely H. corsoni & H. majusculus. The remaining species were identified as either junior synonyms, moved to other genera or considered nomen dubium do to incomplete fossils.
Parietobalaena is an extinct genus of baleen whale, belonging to the family Pelocetidae. Fossils are found in Miocene-aged marine strata in North America, Europe, Australia, and Japan, including the Temblor and Itahashi formations. Based on previous estimates of juvenile specimens, Tsai (2017) suggested a body size of 12-15 m for P. yamaokai, akin to that of the gray whale.
Megistaspis is a genus of trilobites in the order Asaphida and family Asaphidae.
Aeoliscus is a genus of shrimpfishes found in the Indian and Pacific Oceans.
Anodontites is a genus of freshwater mussels, aquatic bivalve mollusks in the family Mycetopodidae. Anodontites are present in South and Middle America, as far north as Mexico.
Phocageneus is an extinct genus of river dolphin belonging to Squalodelphinidae. Specimens have been found in the middle Miocene Calvert Formation of Maryland and Virginia.
Boreostemma is an extinct genus of glyptodonts from northern South America. Fossils assigned to the genus were first described as belonging to Asterostemma from southern South America, but have been placed in the new genus Boreostemma by Carlini et al. in 2008. The type species is B. pliocena. Fossils of Boreostemma have been found in the Honda Group of Colombia, in Peru and Venezuela.
Propalorchestes is a fossil genus of palorchestid marsupial that existed in Australia during the Miocene epoch.
Peramus is an extinct genus of cladotherian mammal. It lived in the Late Jurassic and Early Cretaceous of Europe and North Africa.
Microcnemus is an extinct genus of lizard-like early archosauromorph reptiles from the Protorosauridae. Members of the genus lived during the Early Triassic period in Russia. Once believed to have been an ancestor to lizards, Microcnemus is now known to be one of the oldest members of the lineage that would eventually lead to archosaurs such as crocodilians and dinosaurs. The type species, M. efremovi, was named in 1940 by the German palaeontologist Friedrich von Huene.
Taphrosphys is an extinct genus of bothremydid pleurodiran turtle that was discovered Angola, Morocco and the United States. The genus consists of type species Platemys sulcatus, T. ippolitoi, T. congolensis, and the dubious T. dares.
Phosphatochelys is an extinct genus of bothremydid pleurodiran turtle that was discovered near Oued Zem, Morocco. The genus consists solely of type species P. tedfordi.
Labrostochelys is an extinct genus of bothremydid pleurodiran turtle that was discovered in the Ouled Abdoun Basin, Morocco. The genus consists solely of type species L. galkini.
Nigeremys is an extinct genus of bothremydid pleurodiran turtle from Niger, Mali and Syria. The genus consists exclusively of the combinatio nova of the type species N. gigantea.
