| Dove Spring Formation | |
|---|---|
| Stratigraphic range: Miocene ~ [1] | |
| Type | Geological formation |
| Unit of | Ricardo Group [1] |
| Overlies | Cudahy Camp Formation [1] |
| Thickness | 1,800 meters [1] |
| Location | |
| Region |  California |
| Country |  United States |
The Dove Spring Formation (formerly the Ricardo Formation) is a geologic formation in the western Mojave Desert of California. [1] It preserves fossils dating back to the Miocene epoch of the Neogene period.
Color key
| Notes Uncertain or tentative taxa are in small text; |
| Bats reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Chiroptera | Gen. et. sp. undetermined | Kern County, California. [1] | A bat. | ||
| Eulipotyphlans reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Alluvisorex | A. chasseae | Kern County, California. [1] | A shrew. | ||
| Erinaceidae | Erinaceidae "A" | Kern County, California. [1] | An erinaceid. | ||
| Lanthanotherium | L. sp. | Kern County, California. [1] | An erinaceid. | ||
| Limnoecus | L. sp. | Kern County, California. [1] | A shrew. | ||
| Scapanus | S. (Xeroscapheus) shultzi | Kern County, California. [1] | A mole. | ||
| "Sorex" | "S." sp. | Kern County, California. [1] | A shrew. | ||
| Lagomorphs reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Hesperolagomys | H. sp. | Kern County, California. [1] | A pika. | ||
| Hypolagus | H. sp. | Kern County, California. [1] | A leporid. |  | |
| Proboscideans reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Gomphotherium | G. sp. | Kern County, California. [1] | A gomphothere. | ||
| Serbelodon | S. burnhami | Ricardo, Kern County, California. [1] [7] | Anterior portion of a mandible (F:AM 18228) & 2 tusk fragments (F:AM 18228A & 18228B). [7] | An amebelodontid. | |
| Birds reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Branta | B. howardae | Kern County, California. [1] | A goose. | ||
| Neophrontops | N. ricardoensis | Kern County, California. [1] | A gypaetine vulture. | ||
| Testudines reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Clemmys | C. sp. | Kern County, California. [1] | An emydine turtle. |  | |
| Geochelone | G. sp. | Kern County, California. [1] | A tortoise. | ||
| ?Gopherus | ?G. sp. | Kern County, California. [1] | A gopher tortoise. |  | |
| Amphibians reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Batrachoseps | B. sp. | Kern County, California. [1] | A lungless salamander. | ||
| Bufonidae | Kern County, California. [1] | A true toad. | |||
| cf. Ensatina | cf. E. sp. | Kern County, California. [1] | A lungless salamander. | ||
| Ranidae | Kern County, California. [1] | A true frog. | |||
| Fish reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Empetrichthys | E. sp. | Kern County, California. [1] | A splitfin. | ||
| Plants reported from the Dove Spring Formation | |||||
|---|---|---|---|---|---|
| Genus | Species | Presence | Material | Notes | Images |
| Acacia | A. sp. | Kern County, California. [1] | An acacia. | ||
| Ceanothus | C. sp. | Kern County, California. [1] | A buckbrush. | ||
| Cupressus | C. sp. | Kern County, California. [1] | A cypress tree. | ||
| Lycium | L. sp. | Kern County, California. [1] | A box thorn. | ||
| Palmoxylodon | P. mohavensis | Kern County, California. [1] | A palm. | ||
| Pinus | P. kelloggii | Kern County, California. [1] | A pine. | ||
| Quercus | Q. ricardensis | Kern County, California. [1] | An oak tree. | ||
| Robinia | R. alexanderi | Kern County, California. [1] | A legume. | ||
Viverravidae is an extinct monophyletic family of mammals from extinct superfamily Viverravoidea within the clade Carnivoramorpha, that lived from the early Palaeocene to the late Eocene in North America, Europe and Asia. They were once thought to be the earliest carnivorans and ancestral to extant ones, but now are placed outside the order Carnivora based on cranial morphology as relatives to extant carnivorans.
Aelurodon is an extinct canid genus of the subfamily Borophaginae which lived from the Barstovian land mammal age of the middle Miocene to the late Miocene epoch. Aelurodon existed for approximately 10.7 million years.
The John Day Formation is a series of rock strata exposed in the Picture Gorge district of the John Day River basin and elsewhere in north-central Oregon in the United States. The Picture Gorge exposure lies east of the Blue Mountain uplift, which cuts southwest–northeast through the Horse Heaven mining district northeast of Madras. Aside from the Picture Gorge district, which defines the type, the formation is visible on the surface in two other areas: another exposure is in the Warm Springs district west of the uplift, between it and the Cascade Range, and the third is along the south side of the Ochoco Mountains. All three exposures, consisting mainly of tuffaceous sediments and pyroclastic rock rich in silica, lie unconformably between the older rocks of the Clarno Formation below and Columbia River basalts above.
Vulpini is a taxonomic rank which represents the fox-like tribe of the subfamily Caninae, and is sister to the dog-like tribe Canini.
The Caninae, known as canines, are one of three subfamilies found within the canid family. The other two canid subfamilies are the extinct Borophaginae and Hesperocyoninae. The Caninae includes all living canids and their most recent fossil relatives. Their fossils were first found in North America and dated to the Oligocene era, then spreading to Asia at the end of the Miocene era, some 7 million to 8 million years ago.
Tomarctus is a canid genus of the extinct subfamily Borophaginae which inhabited most of North America during the late Early Miocene to the Early Barstovian age of the Middle Miocene. Tomarctus existed for approximately 6.83 million years.
Nothocyon is an extinct genus of carnivoran in the family Subparictidae which inhabited North America during the late Oligocene. At one time, many species of the dog family Canidae were placed in Nothocyon, but new fossils showed that the type species of Nothocyon, N. geismarianus, is more closely related to bears. The other species have been reassigned to other genera such as Cormocyon.
Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. This includes the study of body fossils, tracks (ichnites), burrows, cast-off parts, fossilised feces (coprolites), palynomorphs and chemical residues. Because humans have encountered fossils for millennia, paleontology has a long history both before and after becoming formalized as a science. This article records significant discoveries and events related to paleontology that occurred or were published in the year 2008.
Xenocyon is an extinct group of canids, either considered a distinct genus or a subgenus of Canis. The group includes Canis (Xenocyon) africanus, Canis (Xenocyon) antonii and Canis (Xenocyon) falconeri that gave rise to Canis (Xenocyon) lycanoides. The hypercarnivorous Xenocyon is thought to be closely related and possibly ancestral to modern dhole and the African wild dog, as well as the insular Sardinian dhole.
The Orellan North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), 34-32 million years ago. It is usually considered to fall within the Early Oligocene. The Orellan precedes the Whitneyan and follows the Chadronian NALMA stages.
Borophagini is a clade or tribe of the subfamily Borophaginae. This is an extinct group of terrestrial canids that were endemic and widespread throughout North America and Central America which lived during the Geringian stage of the Oligocene epoch to the Zanclean age of the Early Pliocene living 30.8—3.6 Mya existing approximately 27.2 million years.
Canis lepophagus is an extinct species of canid which was endemic to much of North America during the Early Pliocene. It is notable because its lineage is proposed to have led to both wolves and coyotes.
Eucyon is an extinct genus of medium omnivorous coyote-like canid that first appeared in the Western United States during the late Middle Miocene 10 million years ago. It was the size of a jackal and weighed around 15kg. Its species E. zhoui was one of a number of North American mammals which invaded East Asia around 5–6 million years ago, followed by the genus going extinct 3 million years ago. This genus is proposed to have given rise to genus Canis 6 million years ago.
Richard Hall Tedford was Curator Emeritus in the Department of Vertebrate Paleontology of the American Museum of Natural History in New York City, having been named as curator in 1969.
The Ash Hollow Formation of the Ogallala Group is a geological formation found in Nebraska and South Dakota. It preserves fossils dating back to the Neogene period. It was named after Ash Hollow, Nebraska and can be seen in Ash Hollow State Historical Park. Ashfall Fossil Beds State Historical Park is within this formation.
The Valentine Formation is a geologic unit formation or member within the Ogallala unit in northcentral Nebraska near the South Dakota border. It preserves fossils dating to the Neogene period and is particularly noted for Canid fossils. A particular feature of the Valentine is lenticular beds of green-gray opaline sandstone that can be identified in other states, including South Dakota, Nebraska, Kansas, and Colorado. Even though three mammalian fauna stages can be mapped throughout the range of the Ogallala, no beddings of the Ogallala are mappable and all attempts of formally applying the Valentine to any mappable lithology beyond the type location have been abandoned. Even so, opaline sandstone has been used to refer to the green-gray opalized conglomerate sandstone that is a particular feature of the lower Ogallala.
The Monroe Creek Formation is a geologic formation in South Dakota. It preserves fossils dating back to the Paleogene period.
The Sharps Formation is a geologic formation in South Dakota. It preserves fossils dating back to the Paleogene.
The Chamita Formation is a geologic formation in north-central New Mexico. It preserves unique fossils dating back to the Neogene period. The presence of volcanic ash beds in the formation, which can be radiometrically dated, gives the absolute age of the fossils, which is valuable for establishing the geologic time scale of the Neogene.
The Chanac Formation is a Cenozoic Era sandstone geologic formation in the southeastern San Joaquin Valley, within Kern County, California.
{{cite journal}}: Cite journal requires |journal= (help)  | This article about a specific stratigraphic formation in California is a stub. You can help Wikipedia by expanding it. |