Taxa named by Edward Drinker Cope

Aristelliger is a genus of Caribbean geckos in the family Sphaerodactylidae, commonly known as croaking geckos or Caribbean geckos. The nine named species in the genus are native to various islands in the West Indies, though the species A. georgeensis is also found on mainland Belize. Aristelliger species are nocturnal and mostly arboreal, occupying palm tree trunks and other vertical surfaces. They are among the largest neotropical geckos, with A. lar reaching up to 135 mm (5.3 inches) in snout-vent-length (not including the tail). They are primarily insectivorous, feeding on a variety of art

species of reptile

Thorius, also known as minute salamanders, pigmy salamanders, or Mexican pigmy salamanders, is a genus of salamanders in the family Plethodontidae. They are endemic to Mexico and found in southern Veracruz and Puebla to Guerrero and Oaxaca.

species of amphibian

species of amphibian

Borophagus ("gluttonous eater") is an extinct genus of the subfamily Borophaginae, a group of canids endemic to North America from the Middle Miocene to the early Pleistocene (12—2Mya).

species of reptile

species of reptile

species of reptile

Hypsiglena is a genus of small, rear-fanged snakes, commonly referred to as night snakes, in the subfamily Dipsadinae of the family Colubridae. The genus consists of nine species. Three of these species have subspecies, which have been maintained pending further investigation.

Pantolambda (Greek: "all" (pantos), "lambda" (lambda), in a reference to the shape of upper premolars, similar to the Greek letter lambda) is an extinct genus of Paleocene pantodont mammal. Pantolambda lived during the middle Paleocene, and has been found both in Asia and North America.

species of reptile

species of amphibian

Paronychodon (meaning "beside claw tooth") is an extinct theropod dinosaur genus. It is a tooth taxon, often considered dubious because of the fragmentary nature of the fossils, which include "buckets" of teeth from many disparate times and places but no other remains, and should be considered a form taxon.

species of amphibian

Percomorpha () is an extremely large and diverse clade of ray-finned fish. With more than 17,000 known species (including tuna, seahorses, gobies, cichlids, flatfish, wrasse, perches, anglerfish, and pufferfish) known from both marine and freshwater ecosystems, it is the most speciose clade of extant vertebrates.

species of reptile

species of amphibian

species of amphibian

species of reptile

species of catfish

Spea is a genus of North American amphibian commonly referred to as the western spadefoot toads. They differ greatly from true toads (those of the family Bufonidae) by having eyes with vertical pupils, no parotoid glands, and relatively smooth skin. Their most distinctive feature is a spade-like projection on their hind feet, from which their common name is derived. This projection enables spadefoot toads to dig in loose soils with ease. Its name is from the Ancient Greek '''' (, ‘cave, cavern’)

species of amphibian

species of reptile

thumb | right | A specimen of Phimophis guerini collected in the Brazilian Amazon. Sections: (1) collection environment; (2) living specimen; (3–5) views of the head Phimophis is a genus of snakes in the subfamily Dipsadinae. The genus is endemic to South America.

species of amphibian

species of fish

species of reptile

species of fish

species of amphibian

species of reptile

Gyalopion is a genus of small nonvenomous colubrid snakes. Species in the genus Gyalopion are commonly referred to as hooknose snakes, and are native to the southwestern United States and Mexico.

species of amphibian

species of reptile

Common names: Mexican horned pitvipers.

Trimerodytes is a genus of snakes in the subfamily Natricinae of the family Colubridae. The genus is endemic to East Asia and Southeast Asia.

The cui-ui (Chasmistes cujus) is a large sucker fish endemic to Pyramid Lake and, prior to its desiccation in the 20th century, Winnemucca Lake in northwestern Nevada. It feeds primarily on zooplankton and possibly on nanoplankton (such as algae and diatoms). The maximum size of male cui-ui is approximately and , while females reach approximately and . A cui-ui typically lives for 40 years but does not reach sexual maturity until at least age eight. The cui-ui is an endangered species, and one of the few surviving members of its genus.

Laliostoma is a genus of frogs in the family Mantellidae. It is monotypic, being represented by a single species, Laliostoma labrosum, or the Madagascar Bullfrog. It is endemic to Madagascar. Its natural habitats are subtropical or tropical moist lowland forests, dry savanna, moist savanna, subtropical or tropical dry shrubland, subtropical or tropical dry lowland grassland, intermittent freshwater marshes, hot deserts, arable land, pastureland, rural gardens, urban areas, ponds, seasonally flooded agricultural land, and canals and ditches.

species of Daruma pond frog

Nimravus is an extinct genus of "false" saber-toothed cat that lived in North America and Eurasia during the Eocene and Oligocene epochs 35.3—27.1 mya, existing for approximately . Not closely related to true saber-toothed cats, they evolved a similar form through parallel evolution. Fossils have been uncovered from western U.S. from Oregon to Southern California and Nebraska, and also from Eurasia from France to Mongolia.

species of amphibian

species of reptile

Thoropa is a genus of frogs in the family Cycloramphidae. They are endemic to eastern and southeastern Brazil. They are sometimes known as river frogs.

species of amphibian

species of amphibian

species of reptile

species of amphibian

Apostolepis is a genus of snakes in the subfamily Dipsadinae. However, the familial placement differs among sources. It has also been placed in the family Colubridae, subfamily Dipsadinae or Xenodontinae, or in the family Xenodontidae. The genus Apostolepis is endemic to South America.

species of toad

species of amphibian

species of reptile

species of amphibian

species of fish

Miacoidea ("small points") is a former paraphyletic superfamily of extinct placental mammals that lived during the Paleocene and Eocene epochs, about 66-33.9 million years ago. This group had been traditionally divided into two families of primitive carnivorous mammals: Miacidae (the miacids) and Viverravidae (the viverravids). These mammals were basal to order Carnivora, the crown-group within the Carnivoramorpha.

Zachaenus is a genus of frogs in the family Cycloramphidae. There are two species that both are endemic to southeastern Brazil. Common name bug-eyed frogs has been coined for the genus.

Ialtris is a genus of snakes in the subfamily Dipsadinae of the family Colubridae. The genus is endemic to the island of Hispaniola.

species of reptile

species of amphibian

species of amphibian

species of amphibian