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Hardheads from the Feather River which had grown to 44–45 centimetres (17–18 in) were aged at 9–10 years old, and it is considered that older and larger fish may occur in the Sacramento River. Hardhead found in smaller streams rarely reach longer than 28 centimetres (11 in) while old records suggest that this species attained total ...
The Cosumnes River is a river in northern California in the United States. It rises on the western slope of the Sierra Nevada and flows approximately 52.5 miles (84.5 km) [ 2 ] into the Central Valley , emptying into the Mokelumne River in the Sacramento-San Joaquin Delta .
The Cosumnes River Preserve is a nature preserve of over 51,000 acres (210 km 2) located 20 miles (30 km) south of Sacramento, in the US state of California. The preserve protects a Central Valley remnant that once contained one of the largest expanses of oak tree savanna, riparian oak forest and wetland habitat in North America. [ 1 ]
The Sacramento pikeminnow (Ptychocheilus grandis), formerly known as the Sacramento squawfish, is a large cyprinid fish of California, United States. It is native to the Los Angeles River , Sacramento - San Joaquin , Pajaro - Salinas , Russian River , Clear Lake and upper Pit River river basins.
A few living forms, such as the coelacanth are also referred to as prehistoric fish, or even living fossils, due to their current rarity and similarity to extinct forms. Fish which have become recently extinct are not usually referred to as prehistoric fish. Lists of various prehistoric fishes include: List of prehistoric jawless fish; List of ...
†Aletopelta coombsi – type locality for species; Amauropsis †Ampullina †Anagaudryceras †Anagaudryceras sacya – or unidentified comparable form †Anahamulina †Anasibirites †Anasibirites kingianus – type locality for species †Anatomites †Anatropites †Anisoceras; Interior and exterior of a shell of an Anomia, or jingle ...
Onchopristis is an extinct genus of sclerorhynchoid from the Cretaceous of North Africa, Europe, North America, and potentially South America.It contains two valid species, O. numida and O. dunklei, though some researchers argue that both may be considered a single taxon with variation in morphology caused by a wide geographical range. [12]
Oncorhynchus rastrosus (originally described as Smilodonichthys rastrosus [2]) also known as the saber-toothed salmon (now known to be a misnomer), [3] or spike-toothed salmon [1] is an extinct species of salmon that lived along the Pacific coast of North America and Japan. [4]