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During the Late Cambrian, the southern third of New Mexico was a marine environment. This habitat was home to a few kinds of brachiopods, a species of graptolite, and trilobites. Local trace fossils include bore marks left by ancient worms. [2] The southern third of New Mexico remained submerged by the sea throughout the entire ensuing ...
The Blue Hole is a clear blue body of water with a constant 62 °F (17 °C) temperature and constant inflow of 3,000 US gallons per minute (11 m 3 /min; 2,500 imp gal/min), enough to cycle out the water every six hours. While the surface is only 80 feet (24 m) in diameter, it expands to a diameter of 130 feet (40 m) at the bottom.
Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is called paleoichthyology. A few living forms, such as the coelacanth are also referred to as prehistoric fish ...
Coelacanth. Coelacanths (/ ˈsiːləkænθ / ⓘ SEE-lə-kanth) (order Coelacanthiformes) are an ancient group of lobe-finned fish (Sarcopterygii) in the class Actinistia. [2][3] As sarcopterygians, they are more closely related to lungfish and tetrapods (which includes amphibians, reptiles, birds and mammals) than to ray-finned fish.
Life restoration of a herd of Mammuthus columbi, or Columbian mammoths. The extent of the fur depicted is hypothetical. Charles R. Knight (1909). Life restoration of a herd of Neohipparion. Robert Bruce Horsfall (1913). Restoration of a herd of alarmed Miocene-Pleistocene peccaries of the genus Platygonus.
Cavefish or cave fish is a generic term for fresh and brackish water fish adapted to life in caves and other underground habitats. Related terms are subterranean fish, troglomorphic fish, troglobitic fish, stygobitic fish, phreatic fish, and hypogean fish.
History. Cultures. Maya civilization. Archway of the Temple of the 7 Doll. Ruins of the colonial open chapel. Cenote at Dzibilchaltun. Dzibilchaltún (Yucatec: Ts'íibil Cháaltun, [d̥z̥ʼiː˧˥biɭ tɕʰɒːl˦˥tuŋ]) is a Maya archaeological site in the Mexican state of Yucatán, approximately 10 miles (16 km) north of state capital of ...
Synodus intermedius, the common sand diver, [3] [4] is a species of fish in the lizardfish family, the Synodontidae, a basal ray-finned fish in the class Actinopterygii.Sand divers inhabit subtropical marine ecosystems, (37-17°N), including sandy- bottom areas on continental shelves, coral reefs, estuaries, bays, and reef structures.