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Dunkleosteus. Dunkleosteus is an extinct genus of large arthrodire ("jointed-neck") fish that existed during the Late Devonian period, about 382–358 million years ago. It was a pelagic fish inhabiting open waters, and one of the first apex predators of any ecosystem. [1]
Folsom site or Wild Horse Arroyo, designated by the Smithsonian trinomial 29CX1, is a major archaeological site about 8 miles (13 km) west of Folsom, New Mexico. It is the type site for the Folsom tradition, a Paleo-Indian cultural sequence dating to between 11000 BC and 10000 BC. The Folsom site was excavated in 1926 and found to have been a ...
The Death Valley Pupfish is a small, silvery colored fish with 6–9 vertical dark bands on its sides. It has an average length of 3.7 cm (1.5 in), with a recorded maximum of 7.8 cm (3.1 in). [3] The males, often appearing in larger sizes compared to females, turn bright blue during mating season, April through October.
Tiktaalik (/ tɪkˈtɑːlɪk /; Inuktitut ᑎᒃᑖᓕᒃ [tiktaːlik]) is a monospecific genus of extinct sarcopterygian (lobe-finned fish) from the Late Devonian Period, about 375 Mya (million years ago), having many features akin to those of tetrapods (four-legged animals). [1]
The Imperial Valley (Spanish: Valle de Imperial or Valle Imperial) of Southern California lies in Imperial and Riverside counties, with an urban area centered on the city of El Centro. The Valley is bordered by the Colorado River to the east and, in part, the Salton Sea to the west. Farther west lies the San Diego and Imperial County border.
The evolution of fish began about 530 million years ago during the Cambrian explosion. It was during this time that the early chordates developed the skull and the vertebral column, leading to the first craniates and vertebrates. The first fish lineages belong to the Agnatha, or jawless fish. Early examples include Haikouichthys.
On Saturday, Aug. 10, the group encountered the 12-foot oarfish while exploring La Jolla Cove near San Diego, the Scripps Institution of Oceanography shared in a Facebook post featuring photos of ...
November 16, 1907. Designated NMSRCP. May 21, 1971. Gila Cliff Dwellings National Monument is a U.S. National Monument created to protect Mogollon cliff dwellings in the Gila Wilderness on the headwaters of the Gila River in southwest New Mexico. The 533-acre (2.16 km 2) national monument was established by President Theodore Roosevelt through ...