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dc.contributor.authorSwift, Camm C.
dc.date.accessioned2020-09-03T11:18:52Z
dc.date.available2020-09-03T11:18:52Z
dc.identifier.urihttps://scholar.oxy.edu/handle/20.500.12711/9606
dc.description.abstractThree species of Pleistocene freshwater fishes occur at Rancho La Brea, <br /><br />the type deposit of the Rancho La Brea Age MammaHan faunas. Remains of <br /><br />rainbow trout, Salmo gairdneri, (mostly isolated vertebrae) and threespine stick- <br /><br />leback, Gasterosteus aculeatus (primarily pelvic spines), are both common. One <br /><br />dentary and two vertebrae represent one individual of arroyo chub, Gila orcutti. <br /><br />Based on pelvic and dorsal spine morphology, a relatively unarmored form of <br /><br />stickleback (possibly representing the recent Gasterosteus aculeatus williamsoni) <br /><br />existed in the Los Angeles Basin up to 30,000 years ago. Collectively the fish <br /><br />fossils indicate local, permanent stream conditions, and not stream transport from <br /><br />distant mountainous areas 10-30 km away. Absence of the more montane Ca- <br /><br />tostomus santaanae and Rhinichthys osculus also argues against long-distance <br /><br />transport. As with other ectothermic organisms (and possibly small endotherms), <br /><br />no extinct freshwater fishes are known from the Rancho La Brea deposits.
dc.subjectLate Pleistocene
dc.subjectFreshwater
dc.subjectFishes
dc.subjectRancho La Brea Deposit
dc.subjectSouthern California
dc.titleLate Pleistocene Freshwater Fishes from the Rancho La Brea Deposit, Southern California
dc.title.alternativeLate Pleistocene Freshwater Fishes from the Rancho La Brea Deposit
dc.typearticle
dc.abstract.formatonep
dc.source.beginpage93
dc.source.issuescas/vol88/iss3
dc.source.issue3
dc.identifier.legacyhttps://scholar.oxy.edu/scas/vol88/iss3/1
dc.source.endpage102
dc.source.peer_reviewedTRUE
dc.source.statuspublished
dc.source.volume88
dc.source.journaltitleScas: Bulletin of the Southern California Academy of Sciences


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