Marine paleoclimatology and paleoecology of a Pleistocene invertebrate fauna from Amchitka Island, Aleutian Islands, Alaska

Allison, Richard C.

doi:10.1016/0031-0182(73)90047-3

Cited by 16 publications

(28 citation statements)

References 20 publications

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“…e, Baja California Sur; CC, Cura-cao; GC, Grand Cayman Island; J, Jamaica; WK, Windley Key, Florida; KL, Key Largo, Florida; MI, Miami, Florida; SSI, San Salvador Island, Bahamas; CI, Coburg Island, Canada; BI, Brougton Island, Canada; Q, Qivitu Peninsula, Canada; C, Clyde Foreland, Canada; TH, Thule area, Greenland; JL, Jameson Land, Greenland. Fossil and age data compiled by the authors from the following sources: Alaska: Allison (1973), Gard (1975), McDougall et al (1986), and Brigham-Grette and Hopkins (1995); Oregon and California: Kennedy (1978Kennedy ( , 1992, Kennedy et al (1982), Muhs et al (1992, Kreitz et al (2000); Yamamoto et al (2000); Poore et al (2000); Herbert et al (1995); Woodring et al (1946); Baja California: Rockwell et al (1989), Omura et al (1979), Libbey and Johnson (1997);Ortlieb (1984); Ashby et al (1987); Emerson et al (1981), and Squires (1959); Cura-cao: Buisonj! e (1974), Schubert and Szabo (1978); Grand Cayman Island: Cerridwen andJones (1991), V!…”

Section: Paleozoogeography Of North American Coastal Sites Of Last-inmentioning

confidence: 99%

Timing and warmth of the Last Interglacial period: new U-series evidence from Hawaii and Bermuda and a new fossil compilation for North America

Muhs

Simmons

Steinke

2002

Quaternary Science Reviews

187

201

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The timing and duration of the Last Interglacial period have been controversial, with some studies suggesting a relatively short duration that is orbitally forced and others suggesting a long duration that is at most only partly related to orbital forcing. New, high-precison thermal ionization mass spectrometric (TIMS) U-series ages of Last Interglacial corals from Hawaii and Bermuda test these competing hypotheses. Waimanalo Formation corals from slowly uplifting Oahu, Hawaii range in age from B134 to B113 ka, with most ages between B125 and B115 ka. Combined with published U-series ages from nearby Lanai, the data suggest a long Last Interglacial period that may have occurred from B136 to at least 115 ka. The results indicate that orbital forcing may not have been the only control on ice sheet growth and decay, because sea level would have been high at times of relatively low Northern Hemisphere summer insolation. On tectonically stable Bermuda, deposits from the B200 ka (penultimate interglacial period), B120 ka (peak Last Interglacial period) and B80 ka (late Last Interglacial period) high sea stands have been newly dated. Fossil corals on Bermuda are derived from patch reefs that likely were ''catch-up'' responses to sea level rise. It is expected that U-series ages of Last-Interglacial corals on Bermuda should overlap with, but not be as old as the range of corals on Oahu. Last-Interglacial corals on Bermuda give a range of B125-113 ka, which supports this hypothesis.A large number of emergent marine deposits on Hawaii, Bermuda and along coastal North America have now been dated to the Last Interglacial period. Both Oahu and Bermuda have marine invertebrate faunas with a number of extralimital southern species of mollusks, suggesting warmer-than-present waters during the Last Interglacial period. Warmer waters are also suggested for LastInterglacial localities around most of North America, from Florida to Canada and Greenland and Baja California to Alaska. These observations are consistent with similar warm-water faunas of Last-Interglacial age reported from Japan, the Mediterranean basin and Western Australia. It is likely that significant changes in ocean currents took place during the Last Interglacial period, with a movement of relatively warm waters to higher latitudes than is the case today. r

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Section: Paleozoogeography Of North American Coastal Sites Of Last-inmentioning

confidence: 99%

Timing and warmth of the Last Interglacial period: new U-series evidence from Hawaii and Bermuda and a new fossil compilation for North America

Muhs

Simmons

Steinke

2002

Quaternary Science Reviews

187

201

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“…* * * The great abundance of two species of Globigerina, pelagic forms, would indicate that ocean currents from warmer areas, such as the present Japanese Current, also influenced this area." A comprehensive study by Allison (1973) on the paleoecology of the invertebrate megafossils from the deposit indicates that the water temperature at that time was almost the same as it is today. Allison reported that when these mollusks were living, the mean February water temperature was prob ably about 3.9°C, and the mean August water tem perature was 10.0°-11.7°C; these temperatures com pare with present-day water temperatures of 3.9°C for February and 10.0°C for August.…”

Section: Environmentmentioning

confidence: 97%

“…A report on Foraminifera collected by R. R. Coats in a gravel pit 200 m north of the Hydrodamalis site was published by Cushman and Todd (1947). , Allison (1973 col lected a large invertebrate fauna from this deposit.…”

Section: Other Fossilsmentioning

confidence: 99%

Steller's sea cow (Hydrodamalis gigas) of Late Pleistocene age from Amchitka, Aleutian Islands, Alaska

Whitmore¹,

Gard²

1977

Professional Paper

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A partial skeleton of Hydrodamalis has been collected from a Pleistocene interglacial beach deposit, 35 meters above present sea level, on Amchitka, Aleutian Islands, Alaska. This is the first discov ery of the genus in place in Pleistocene deposits outside the Com mander Islands (Komandorskiye Ostrova), U.S.S.R. Parts of the young but apparently nearly full grown individual were found in a position which suggested that the animal, after death, had been washed into shallow water or up onto a beach. The Pleistocene animal was toothless, as was the modern Steller's sea cow (Hy drodamalis gigas), which was exterminated by Russian hunters about 1768. Like the modern form, the Pleistocene sea cow undoubt edly subsisted on kelp. It is indistinguishable from the modern species. A uranium-series date of 127,000±8,000 years on bone from this beast is consistent with a generally accepted age of the last ma jor interglacial stage.

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“…Additional information was provided by Richards (1962), Macneil (1965), Einarsson et al (1967), Hopkins et al (1972), Allison (1973), Troitskiy (1974), Gladenkov (1978Gladenkov ( , 1979, Bernard (1979), Franz and Merril (1980), Simonarson (1981), Agapitov et al (1985), Marincovich et al (1985), Golikov and …”

Section: Feeding (mentioning

confidence: 99%

“…Molluscs recovered from Tertiary and Quaternary deposits have been used to follow periods of interchange and colonization between these two ocean basins. Information on this topic is provided through numerous publications, notably by Durham and Macneil (1967), Einarsson et al (1967), Hopkins et al (1972), Allison (1973), Troitskiy (1974), Bernard (1979), Gladenkov (1979), Lubinsky (1980), Evseev and Krasnov (1985), Golikov and Scarlato (1989), Fyles et al (1991), Vermeij (1991) and Dyke et al (1996a). In this regard, two geologic events appear to have had an important impact on the evolution of Canadian arctic molluscan faunas: (1) during the Tertiary, the opening of the Bering Strait at 3.5-3.0 Ma ago and (2) during the Late Quaternary, deglaciation of North America, Europe and Asia re-established the connection between the Pacific and the Atlantic oceans, after they were segregated by Quaternary glaciations and the emergence of the Bering Land Bridge.…”

Section: Introductionmentioning

confidence: 99%

Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago

Gordillo¹,

Aitken²

2002

gpq

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This study examines neonto- logical and palaeontological data pertaining to arctic marine molluscs with the goal of reconstructing the palaeoecology of Late Quaternary ca. 12-1 ka BP glaciomarine environments in the Canadian Arctic Archipelago. A total of 26 taxa that represent 15 bivalves and 11 gastropods were recorded in shell collections recovered from Prince of Wales, Somerset, Devon, Axel Heiberg and Ellesmere islands. In spite of taphonomic bias, the observed fossil faunas bear strong similarities to modern benthic molluscan faunas inhabiting high latitude continental shelf environments, reflecting the high preservation potential of molluscan taxa in Quaternary marine sediments. The dominance of an arctic-boreal fauna represented by Hiatella arctica, Mya truncata and Astarte borealis is the product of natural ecological conditions in high arctic glaciomarine environments. Environmental factors controlling the distribution and species composition of the Late Quaternary molluscan assemblages from this region are discussed.

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Marine paleoclimatology and paleoecology of a Pleistocene invertebrate fauna from Amchitka Island, Aleutian Islands, Alaska

Cited by 16 publications

References 20 publications

Timing and warmth of the Last Interglacial period: new U-series evidence from Hawaii and Bermuda and a new fossil compilation for North America

Timing and warmth of the Last Interglacial period: new U-series evidence from Hawaii and Bermuda and a new fossil compilation for North America

Steller's sea cow (Hydrodamalis gigas) of Late Pleistocene age from Amchitka, Aleutian Islands, Alaska

Palaeoenvironmental Interpretation of Late Quaternary Marine Molluscan Assemblages, Canadian Arctic Archipelago

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