A raven is any of several larger-bodied passerine bird species in the genus Corvus. These species do not form a single taxonomic group within the genus. There is no consistent distinction between "crows" and "ravens", common names which are assigned to different species chiefly based on their size.
The Muisca are an indigenous people and culture of the Altiplano Cundiboyacense, Colombia, that formed the Muisca Confederation before the Spanish conquest. The people spoke Muysccubun, a language of the Chibchan language family, also called Muysca and Mosca. They were encountered by conquistadors dispatched by the Spanish Empire in 1537 at the time of the conquest. Subgroupings of the Muisca were mostly identified by their allegiances to three great rulers: the hoa, centered in Hunza, ruling a territory roughly covering modern southern and northeastern Boyacá and southern Santander; the psihipqua, centered in Muyquytá and encompassing most of modern Cundinamarca, the western Llanos; and the iraca, religious ruler of Suamox and modern northeastern Boyacá and southwestern Santander.
In paleontology, a Lazarus taxon is a taxon that disappears for one or more periods from the fossil record, only to appear again later. Likewise in conservation biology and ecology, it can refer to species or populations that were thought to be extinct, and are rediscovered. The term Lazarus taxon was coined by Karl W. Flessa and David Jablonski in 1983 and was then expanded by Jablonski in 1986. Paul Wignall and Michael Benton defined Lazarus taxa as, "At times of biotic crisis many taxa go extinct, but others only temporarily disappeared from the fossil record, often for intervals measured in millions of years, before reappearing unchanged". Earlier work also supports the concept though without using the name Lazarus taxon, like work by Christopher R. C. Paul.
Atelopus is a large genus of Bufonidae, commonly known as harlequin frogs or toads, from Central and South America, ranging as far north as Costa Rica and as far south as Bolivia. Atelopus species are small, generally brightly colored, and diurnal. Most species are associated with mid-to-high elevation streams.
A. africanus may refer to:
Atelopus longirostris is a species of harlequin frog, a member of the family of true toads (Bufonidae). It has been recorded only in northern Ecuador. Records from Colombia probably represent different species. As of mid-2017, it is listed as extinct by the IUCN, but was rediscovered in 2016 after more than two decade with no sightings, likely because the IUCN last assessed it in 2004. The scientific name of this species means "long-snout" and the species has been named in Spanish as the jambato hocicudo. Common names longnose stubfoot toad, scrawny stubfoot-toad, and longnose sharlequin frog have been coined for it.
Chocontá is a municipality and town of Colombia in the Almeidas Province, part of the department of Cundinamarca. It is located on the Pan-American Highway. In 1938 Chocontá had a population of 2,041.
Atelopus varius, the Costa Rican variable harlequin toad or clown frog, is a small Neotropical true toad from the family Bufonidae. Once ranging from Costa Rica to Panama, A. varius is now listed as critically endangered and has been reduced to a single remnant population near Quepos, Costa Rica and has only relict populations in western Panama (IUCN). Recent variation in air temperature, precipitation, stream flow patterns, and the subsequent spread of a pathogenic chytrid fungus (Batrachochytrium dendrobatidis) linked to global climate change have been the leading cause of decline for A. varius. A. zeteki has been considered a subspecies of A. varius, but is now generally considered a separate species.
Atelopus muisca is an extinct species of toad in the family Bufonidae. It is endemic to Colombia. Its natural habitats were subtropical or tropical moist montane forests, subtropical or tropical high-altitude grassland, and rivers. It is threatened by habitat loss.
Euryomma is a genus of species of flies of the family Fanniidae. The genus was originally proposed by the entomologist Paul Stein in 1899. Although at that time most authorities placed them in the family Muscidae. The distribution of Euryomma is mainly Neotropical, on the whole restricted to the Americas, there is also one Nearctic species, the exception being of the very cosmopolitan E. peregrinum
A. gracilis may refer to:
Huitaca or Xubchasgagua was a rebelling goddess in the religion of the Muisca. The Muisca and their confederation were a civilization who inhabited the Altiplano Cundiboyacense in the Andes. Huitaca has been described by the chroniclers Juan de Castellanos in his Elegías de varones ilustres de Indias, Lucas Fernández de Piedrahita and Pedro Simón.
Brachygasterina muisca is a species of fly in the genus Brachygasterina of the subfamily Muscinae, described in 2012 by Soares and De Carvalho.
Euryomma muisca is a species of fly in the genus Euryomma. It was first described by Grisales et al. in 2012.
Alabagrus is a genus of braconid wasps in the family Braconidae. There are at least 100 described species in Alabagrus.
Atelopus ardila is a species of frog in the family Bufonidae. It has not been seen since 1992, and is believed to be possibly extinct.
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