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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 ...
†Acrodus wempliae – type locality for species †Acteon †Acteonella; Life restoration of the Late Cretaceous armored dinosaur Aletopelta †Aletopelta – type locality for genus †Aletopelta coombsi – type locality for species; Amauropsis †Ampullina †Anagaudryceras †Anagaudryceras sacya – or unidentified comparable form ...
This list of the Cenozoic life of California contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of California and are between 66 million and 10,000 years of age.
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 .
Download QR code; Print/export ... Lists of prehistoric fish. List of prehistoric bony fish genera; ... List of fossil species in the La Brea Tar Pits, California, ...
The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered agnathans. Modern forms are excluded from this list.
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 ]
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 ...