Irritator is a genus of spinosaurid theropod dinosaur that lived in what is now Brazil during the Albian stage of the Early Cretaceous Period, about 110 million years ago. It is known from a nearly complete skull found in the Romualdo Formation of the Araripe Basin. Fossil dealers had acquired this skull and illegally sold it to the State Museum of Natural History Stuttgart. In 1996, the specimen became the holotype of the type species Irritator challengeri. The genus name comes from the word "irritation", reflecting the feelings of paleontologists who found the skull had been heavily damaged and altered by the collectors. The species name is an homage to the fictional character Professor Challenger from Arthur Conan Doyle's novels.
Oncideres cingulata, the twig girdler, is a brownish-gray beetle, typically 1⁄2 to 5⁄8 inch in length, in the longhorn beetle family. It is characterized by long antennae, 1⁄2 to 1 inch long.
Onciderini is a tribe of longhorn beetles of the Lamiinae subfamily.
Oncideres is a genus of longhorn beetles of the subfamily Lamiinae, containing more than 120 species in the nearctic and neotropics.
Oncideres punctata is a species of beetle in the family Cerambycidae. It was described by Dillon and Dillon in 1946. It is known from Costa Rica and Mexico.
Oncideres errata is a species of beetle in the family Cerambycidae. It was described by Martins and Galileo in 2009. It is known from Brazil.
Oncideres estebani is a species of beetle in the family Cerambycidae. It was described by Martins and Galileo in 2010. It is known from Costa Rica.
Oncideres sparsemaculatus is a species of beetle in the family Cerambycidae. It was described by Martins and Galileo in 2010. It is known from Guatemala.
Oncideres putator is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1868.
Oncideres tuberculata is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1868. It is known from Guyana and French Guiana.
Oncideres albomarginata is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1868. It is known from Costa Rica, Ecuador, Colombia, Guatemala, Panama, Guyana, Mexico, Nicaragua, Venezuela, and Trinidad and Tobago.
Oncideres dalmani is a species of beetle in the family Cerambycidae. It was described by James Thomson in 1868. It is known from Brazil and French Guiana.
Oncideres poecila is a species of beetle in the family Cerambycidae. It was described by Henry Walter Bates in 1880. It is known from Honduras, Mexico and Salvador.
Oncideres captiosa is a species of beetle in the family Cerambycidae. It was described by Martins in 1981. It is known from Paraguay and Brazil.
Oncideres vitiliga is a species of beetle in the family Cerambycidae. It was described by Martins in 1981. It is known from Bolivia.
Oncideres amputator is a species of beetle in the family Cerambycidae. It was described by Johan Christian Fabricius in 1792, originally under the genus Lamia. It is known from the Caribbean Islands. It feeds on Eucalyptus and Inga ingoides.
Oncideres impluviata is a species of beetle in the family Cerambycidae. It was described by Ernst Friedrich Germar in 1842. It is known from Brazil, Argentina, Uruguay, and Paraguay. It feeds on Parapiptadenia rigida.
Oncideres jatai is a species of beetle in the family Cerambycidae. It was described by Bondar in 1953. It is known from Brazil.
Oncideres maculosus is a species of beetle in the family Cerambycidae. It was described by Redtenbacher in 1868. It is known from Brazil.
The National Museum of Brazil collections included an exhibition of fossils.
