Syncline in the Barstow Formation (Barstovian) in Rainbow Basin near Barstow, California.Cameloid footprint (Lamaichnum alfi Sarjeant and Reynolds, 1999; convex hyporelief) from the Barstow Formation (Barstovian) of Rainbow Basin, California.
The Barstovian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 16,300,000 to 13,600,000 years BP, a period of 2.7 million years.[1] It is usually considered to overlap the Langhian and Serravallian stages of the Middle Miocene. The Barstovian is preceded by the Hemingfordian and followed by the Clarendonian NALMA stages.
The Barstovian can be further divided into the substages of:
late Late Barstovian: Lower boundary source of the base of the Langhian (approximate)
early Late Barstovian: Base of the Langhian (approximate)
early/lower Barstovian: Upper boundary source: base of Clarendonian (approximate)
The Barstovian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology...
determined to have come from the lower Valentine Formation, making them late Barstovian in age. Leidy reassigned the specimens to Pseudaelurus as Pseudaelurus...
Ursinae Temporal range: Barstovian–Recent PreꞒ Ꞓ O S D C P T J K Pg N A Eurasian brown bear (Ursus arctos arctos) Scientific classification Domain: Eukaryota...
species are known, including Haematopus sulcatus (Brodkorb, 1955) from the Barstovian of Florida and Zanclean of North Carolina, and which is evidently considered...
L. Warter in 1976 was found in marine Middle Miocene deposits of the Barstovian age in the southern part of California. The second species Pandion lovensis...
Asia's Middle Miocene and North America's late Hemingfordian to late Barstovian epochs. In the Early or Middle Miocene, the saber-toothed Machairodontinae...
extinct canid genus of the subfamily Borophaginae which lived from the Barstovian land mammal age (16 mya) of the middle Miocene to the late Miocene epoch...
living from the Duchesnean stage of the Late Eocene through to the early Barstovian stage of the Miocene, lasting around 20 million years. It comprises 10...
of Zygolophodon from North America is Z. proavus, which occurs in the Barstovian and Clarendonian stages. M? furlongi from the Black Butte in Oregon also...
Herpetological Species and Records from the Norden Bridge Fauna (Miocene: Late Barstovian) of Nebraska". Transactions of the Nebraska Academy of Sciences and Affiliated...
Guanajuato. The fossils date in time from the oldest dating from the Barstovian in the Miocene to the youngest dating in the Hemphillian faunal stage...
"Cormohipparion n. gen. (Mammalia, Equidae) from the North American Miocene (Barstovian-Clarendonian)". Journal of Paleontology. 51 (5). Paleontological Society:...
million years ago) in age, in the Neogene Period. It lends its name to the Barstovian North American land mammal age (NALMA). The sediments are fluvial and...
Andrias matthewi Temporal range: Arikareean–Barstovian PreꞒ Ꞓ O S D C P T J K Pg N Size comparison between a human and A. matthewi Scientific classification...
Mergus miscellus is known from the Middle Miocene Calvert Formation (Barstovian, c.14 million years ago) of Virginia, USA. Mergus connectens lived in...
recombined its type species, Chelydrops stricta from the Miocene (Early Barstovian) of Nebraska, as the (then) fourth species of Macrochelys. There are two...
The Hemingfordian is preceded by the Arikareean and followed by the Barstovian NALMA stages. The Hemingfordian can be further divided into the substages...
formation of the isthmus. Condor-like forms in North America date back to the Barstovian stage (middle Miocene, 11.8 – 15.5 Ma ago). This is based on the definition...
Teleoceras Temporal range: Barstovian-Hemphillian ~15.97–4.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N Specimen at the Natural History Museum of LA Scientific classification...
inhabited most of North America during the late Early Miocene to the Early Barstovian age of the Middle Miocene (23—16 million years ago). Tomarctus existed...
Amphicyon ingens This huge species lived during the early to middle Barstovian, 15.8–14.0 Mya. It was originally described by W. Matthew in 1924 from...
A.; Fritz, U. (2001). "A new emydine species from the Middle Miocene (Barstovian) of Nebraska, USA with a new generic arrangement for the species of Clemmys...
known from across western and central North America during the following Barstovian (including Colorado, California, Montana, Oregon, Nebraska, Nevada, Wyoming...
Pliohippus Temporal range: Barstovian-Hemphillian ~15.97–4.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N Pliohippus pernix skull Scientific classification Domain: Eukaryota...
known from fragmentary jaws and isolated teeth from a site in the early Barstovian, around 15–16 million years ago, of Nevada. Together with other species...
Megahippus Temporal range: 16.3–10.3 Ma PreꞒ Ꞓ O S D C P T J K Pg N Barstovian to Late Clarendonian Megahippus mckennai fossils Scientific classification...
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