Ailuravus is a genus of prehistoric rodents in the family Ischyromyidae.
Bishops is an extinct genus of mammals from Early Cretaceous of Australia. The only recorded species, Bishops whitmorei, was found on Flat Rocks, Wonthaggi Formation, Victoria. The genus was named in honour of Dr Barry Bishop, the former Chairman of the Committee for Research and Exploration, National Geographic Society.
Baenidae is an extinct family of paracryptodiran turtles known from the Early Cretaceous to Eocene of North America. While during the Early Cretaceous they are found across North America, during the Late Cretaceous they are only found in Laramidia, having disappeared from Appalachia. The majority of lineages survived the K-Pg Extinction, but the family was extinct by the latest Eocene. The name of the type genus, Baena, appears to be of Native American origin. They are primarily found in freshwater deposits, and are considered to be aquatic, with a largely generalist habit.
Latentemys is an extinct genus of podocnemidid turtle. It is known from Miocene aged sediments of the Moghara Formation in Egypt.
Calicovatellus is an extinct genus of dytiscid beetle in the subfamily Hydroporinae. As of 2018, one species is recognized, Calicovatellus petrodytes. It was found in the Barstow Formation in southern California and dates to the Miocene.
Perikoala is an extinct genus of marsupials, related to the modern koala. The genus diverged from a common ancestor of the other koala genera Nimiokoala, Litokoala, and Phascolarctos, which contains the living koala.
Lioestheria is an extinct genus of clam shrimp that thrived from the Carboniferous to the Cretaceous. They fed on detritus, being very small slow moving, nektonic organisms that filter fed as they floated. They have been found in both marine and freshwater environments.
Anticostiodus is an extinct genus of multielement conodonts. Specimens have been described from the Lower Silurian of Gun River Formation of Anticosti Island, Quebec. Two species are included under the genus, Anticostiodus fahraeusi and Anticostiodus boltoni. Both species occur near the base of the Distomodus staurognathoides zone and in an open subtidal environment.
Gapparodus is an extinct genus of conodonts in the family Furnishinidae. Gapparodus gapparites is a species of the Early Cambrian of Shuijingtuo Formation in China.
Neostreptognathodus is an extinct genus of conodonts from the Cisuralian.
Mesogondolella is an extinct genus of conodonts.
Acanthodus is an extinct genus of conodonts.
Lochriea is an extinct genus of conodonts.
Neospathodus is an extinct genus of conodonts.
Cancelloceras is an extinct genus of ammonites in the family Gastrioceratidae. Species are from the Carboniferous.
Cystodictya is a genus of prehistoric bryozoans in the extinct family Cystodictyonidae.
Hardistiella montanensis is a fossil fish and extinct species of lamprey found, dating from the Carboniferous period, at the Bear Gulch Limestone site in the U.S. state of Montana.
Palaeophasianus is an extinct genus of flightless Geranoididae birds that lived in North America during the Eocene period. Robert Wilson Shufeldt classified Palaeophasianus as a galliform when he described it in 1913. However it was transferred to Cracidae in 1964 by Pierce Brodkorb, while Joel Cracraft in 1968 placed it in Gruiformes.
Khutelchalcis is an extinct genus of chalcid wasp, it is the only member of the family Khutelchalcididae. It is only known from a single species, described from the Early Cretaceous Tsagaantsav Formation of Mongolia.
Heloderma texana is an extinct species of heloderm lizard known from Miocene sediments in Big Bend National Park. It is the oldest fossil record of the genus Heloderma in North America.
