Propalaeotherium was an early genus of perissodactyl endemic to Europe and Asia during the early Eocene. There are currently six recognised species within the genus, with P. isselanum as the type species.
Hyaenodon ("hyena-tooth") is an extinct genus of carnivorous placental mammals from extinct tribe Hyaenodontini within extinct subfamily Hyaenodontinae, that lived in Eurasia and North America from the middle Eocene, throughout the Oligocene, to the early Miocene.
Diatomys is an extinct rodent genus known from Miocene deposits in China, Japan, Pakistan, and Thailand. The fossil range is from the late Early Miocene to the Middle Miocene.
Atacisaurus is an extinct dubious genus of gavialoid crocodylian. Fossils have been found in the Grès de Carcassonne Member of the Sables du Castrais Formation in Laure-Minervois, France that date back to the Middle Eocene.
Iberosuchus is a genus of extinct sebecosuchian mesoeucrocodylian found in Western Europe from the Eocene. Remains from Portugal was described in 1975 by Antunes as a sebecosuchian crocodilian. This genus has one species: I. macrodon. Iberosuchus was a carnivore. Unlike the crocodilians today, they were not aquatic but were instead terrestrial.
Quercygale is an extinct genus of placental mammals from the clade Carnivoraformes, that lived in Europe during the early to late Eocene.
Tillodontia is an extinct suborder of eutherian mammals known from the Early Paleocene to Late Eocene of China, the Late Paleocene to Middle Eocene of North America where they display their maximum species diversity, the Middle Eocene of Pakistan, and the Early Eocene of Europe. Leaving no descendants, they are most closely related to the pantodonts, another extinct group. The tillodonts were medium- to large-sized animals that probably fed on roots and tubers in temperate to subtropical habitats.
Dollosuchus is an extinct monospecific genus of tomistomine crocodilian originally named as a species of Gavialis. It is a basal form possibly related to Kentisuchus, according to several phylogenetic analyses that have been conducted in recent years, and is the oldest known tomistomine to date. Fossils have been found from Belgium and the United Kingdom. It had large supratemporal fenestrae in relation to its orbits, similar to Kentisuchus and Thecachampsa.
Ferganosuchus is an extinct monospecific genus of gavialid crocodilian. The genus is thought to be a tomistomine, although it has been suggested that Ferganosuchus may be a more basal gavialoid. Fossils have been found in the region of Kazakhstan and Kyrgyzstan that date back the middle Eocene. The genus is well known from fairly complete specimens, unlike most other Asian tomistomines, whose remains tend to be more fragmentary.
Robert Julien Hoffstetter was a French taxonomist and herpetologist who was influential in categorizing reptiles. He described the snake families Bolyeriidae and Madtsoiidae.
Kentisuchus is an extinct genus of gavialoid crocodylian, traditionally regarded as a member of the subfamily Tomistominae. Fossils have been found from England and France that date back to the early Eocene. The genus has also been recorded from Ukraine, but it unclear whether specimens from Ukraine are referable to Kentisuchus.
The Lignites de Soissonais is a geologic formation in the Var, Marne departments of France. It preserves fossils dating back to the Ypresian stage of the Eocene period.
The Quercy Phosphorites Formation is a geologic formation and lagerstätte in Occitanie, southern France. It preserves fossils dated to the Paleogene period, or MP16 to MP28 zones of the European land mammal age classification, ranging from approximately 38 to 25 Ma.
Necromantis is an extinct genus of bat that lived during the Eocene. Its fossils are found in the Quercy Phosphorites Formation of France and the Djebel Chambi in Tunisia. Specimens of Necromantis are notable for their large size and specialization towards a predatory lifestyle.
Microbunodon was a genus of extinct artiodactyl mammals in the family Anthracotheriidae. It lived between the upper Eocene and the lower Pliocene. Its fossil remains have been found in Europe and Asia.
The Silveirinha Formation is an Early Eocene geologic formation of the Mondego Basin in the Região Centro of central-western Portugal. The sandstones, siltstones and conglomerates were deposited in an alluvial environment.
La Grive-Saint-Alban is a geomorphological karstic site located on the territory of the French commune of Saint-Alban-de-Roche, in the Isère department. This area, long exploited for its red clay, is known since the 19th century for the richness of its fossil deposits, distributed from the Bathonian stage to the Miocene.
The Sables du Castrais Formation, also known as the Molasses du Castrais, is a geologic formation of Eocene age, outcropping in the Montagne-Noire region of France.
Auroremys is an extinct genus of Palaeogene rodents belonging to the theridomorph family Pseudosciuridae. The type and only species Auroremys subita was first named by Bernard Comte et al. in 2012 as belonging to the ischyromyid genus Ailuravus before it was eventually reclassified to its own genus by French palaeontologists Monique Vianey-Liaud and Laurent Marivaux in 2021.
Theridomorpha is an extinct clade of Palaeogene rodents that were endemic to western Europe and lived from the early Eocene to the late Oligocene. It is proposed to belong to the suborder Ischyromyiformes, of which the Gliridae is the sole surviving family, and contains the families Euromyidae, Masillamyidae, Theridomyidae, and Pseudosciuridae. Theridomorphs had wide variations in both their tooth crown heights and their surface patterns, namely bunodont, lophodont, or selenodont dentitions. Whereas Eocene species had brachyodont, or low-crowned, to slightly hypsodont (higher-crowned) dentitions, Oligocene species tended to have more semi-hypsodont dentitions. Theridomorphs ranged in size from small field mice at 50 g (1.8 oz) to muskrats at 1 kg (2.2 lb).
