Eocene life

A nummulite is a large lenticular fossil, characterised by its numerous coils, subdivided by septa into chambers. They are the shells of the fossil and present-day marine protozoan Nummulites, a type of foraminiferan. Nummulites commonly vary in diameter from and are common in Eocene to Miocene marine rocks, particularly around southwest Asia and the Mediterranean in the area that once constituted the Tethys Ocean, such as Eocene limestones from Egypt or from Pakistan. Fossils up to six inches wide are found in the Middle Eocene rocks of Turkey. They are valuable as index fossils.

Synoplotherium (synonym Dromocyon) is an extinct genus of relatively small, wolf-like mesonychids that lived 50 million years ago, in what is now Wyoming. thumb|left|Synoplotherium lanius thumb|left|Restoration by Robert Bruce Horsfall Synoplotherium coexisted with its larger relative, Mesonyx. Very little else remains known about this mesonychid since its discovery in 1875.

Batodonoides (often misspelled as Batonoides) is a genus of extinct shrew-like mammals, which includes a species that is possibly the smallest mammal to have ever lived. Species of Batodonoides lived about during the early to middle Eocene Epoch in North America. The genus contains four species: the type species B. powayensis, the older B. vanhouteni, B. walshi and B. rileyi.

species of fish

amber found in the Rivne Oblast

Cambaytherium is an extinct genus of placental mammals in the family Cambaytheriidae. It existed during the early Eocene approximately 55 million years ago on the Indian subcontinent. Fossils of Cambaytherium are known exclusively from the Cambay Shale Formation in western India and comprise over 200 specimens, including skulls, teeth, and postcranial elements. The genus and family were first described scientifically in 2005. Initially, placement at the base of the odd-toed ungulates was preferred, though some researchers suggested affinity with elephants within Tethytheria. Recent systematic

Messelornithidae is an extinct clade of gruiform birds, closely related to modern rails. The fossil record are from the Paleocene to the early Oligocene of Europe and North America.