Cenozoic molluscan faunas and climatic changes in the northern Pacific related to Pacific gateways: review and perspective

Ogasawara, Katsuhiko; Takano, Masanobu; Nagato, Hideo; Nakano, Takanori

doi:10.9795/bullgsj.59.355

Cited by 27 publications

(7 citation statements)

References 42 publications

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“…Before the formation of the Isthmus of Panama, the Atlantic Ocean was a considerably narrower ocean basin than today, and current-mediated larval transport across it may have been feasible during the life span of marine planktonic larvae (Woodring 1982, Schubart et al 2005. The marine fauna interchange between the Caribbean and the eastern Pacific may have been influenced not only by the closure of the Isthmus of Panama, but also by climate shifts in the Arctic region and the concomitant changes to current systems of the Pacific and Atlantic oceans (Ogasawara et al 2008). …”

Section: Discussionmentioning

confidence: 99%

Morphological and Genetic Identification of the Validity of the SpeciesAtrina chinensis(Bivalvia: Pinnidae)

Xue

Wang

Zhang

et al. 2012

Journal of Shellfish Research

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Section: Discussionmentioning

confidence: 99%

Morphological and Genetic Identification of the Validity of the SpeciesAtrina chinensis(Bivalvia: Pinnidae)

Xue

Wang

Zhang

et al. 2012

Journal of Shellfish Research

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“…The broad outlines of North Pacific history during the Cenozoic era were sketched in previous work (Kafanov, ; Y. B. Gladenkov, , ,b; Titova, , ,b,c; Kafanov & Volvenko, ; Vermeij, ; Hickman, ; Oleinik & Marincovich, ; Jacobs, Haney, & Louie, ; Amano, ; Ogasawara, Takano, Nagato, & Nakano, ). Many ecological and evolutionary events, however, remain insufficiently explored, especially those related to patterns of primary production and biogeographical relations within the North Pacific and between the North Pacific and other parts of the world.…”

Section: Introductionmentioning

confidence: 92%

The coastal North Pacific: Origins and history of a dominant marine biota

Vermeij

Banker

Capece

et al. 2018

Journal of Biogeography

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Aims Some biogeographical regions act primarily as donors of colonists to other regions, while others act predominantly as recipient areas. How some biotas become dominant while others do not is a largely historical question that has received surprisingly little attention from biogeographers. Here, we seek to answer this question for the cold‐water North Pacific biota, which did not exist forty million years ago but which is now the principal donor biota outside the tropics. Location We focus on the cool‐temperate coastal North Pacific Ocean over the last 36.5 million years. Taxon We consider all multicellular taxa for which adequate fossil, phylogenetic and biogeographical data exist. Methods After placing North Pacific geographical events in the broader context of ocean gateways opening and closing elsewhere in the world, we discuss the history and factors affecting the planktonic and benthic productivity in the North Pacific based on a review and critical evaluation of the literature. A synthesis of primary sources was used to evaluate the origins and fates of North Pacific lineages, with special emphasis on movements to, within and from the North Pacific during the Cenozoic era. Results During the Late Eocene to earliest Miocene, the cooling North Pacific received colonists from adjacent warm‐water regions and the cold Southern Hemisphere, where temperate conditions had existed since at least the Cretaceous. From the Miocene onward, the North Pacific biota began to spread to the Southern Hemisphere and through Bering Strait to the Arctic and North Atlantic Oceans. Within the North Pacific, lineages during the early cooling phases spread predominantly from west to east, but in the Early Middle Miocene this pattern reversed, with later expansions going in both directions. An increase in productivity, powered by the evolution of highly productive seaweeds and by consumers with high metabolic rates, accompanied the transformation of the North Pacific from a recipient to donor biota. Main conclusions The North Pacific replaced the Southern Hemisphere temperate biota as the principal donor biota during the Miocene through a combination of increasing productivity, low magnitudes of extinction and intense competition and predation in an ocean basin with a long coastline.

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“…The lower Pliocene formations of Haboro and neighbouring areas in northern Hokkaido have been considered to have been deposited in a shallow marine environment under cool to temperate conditions, based mainly on molluscan assemblages (Matsuno & Kino ; Noda ; Suzuki & Akamatsu ; Ogasawara ; Amano ; Nakashima ; Ogasawara et al . ). The existence of the fossil Hydrodamalis from the Takikawa Formation, coeval with the Embetsu Formation, seems to meet the interpretation of rather cool oceanic conditions in northern Hokkaido regions (Furusawa ).…”

Section: Discussionmentioning

confidence: 97%

First monodontid cetacean (Odontoceti, Delphinoidea) from the early Pliocene of the north‐western Pacific Ocean

Ichishima

Furusawa

Makino

et al. 2018

Papers in Palaeontology

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Monodontids are among the most enigmatic cetaceans due to their scarcity in the fossil record. Previously, except for fragmentary materials, only three skulls were known from the pre‐Pleistocene; these came from the east coast of the Pacific and both east and west coasts of the Atlantic. Haborodelphis japonicus, a new early Pliocene monodontid cetacean from the north‐west Pacific, significantly expands the palaeobiogeographical extent of the ancestral monodontids. The new taxon differs from all other monodontids in the following character states: the robust postorbital process for the skull size; the short rostrum relative to the whole skull length; the anterior dorsal infraorbital foramina posterior to the level of the antorbital notch; the premaxillary foramen on the level of the antorbital notch; the dorsally gently convex premaxillary sac fossa; the palatines wedged into the maxillae anteriorly on the midline; and the presence of the clearly excavated posteromedial sulcus. Monodontids were almost certainly adapted to warmer waters than their living counterparts Delphinapterus leucas and Monodon monoceros, both of which are confined to the high latitudes of the northern hemisphere. However, closer inspection (based mainly on fossil invertebrates) of the palaeoenvironments from which the monodontid fossils were produced, reveals that they may have preferred cooler conditions than previously thought. Due to the short climatic fluctuation cycles during the Pliocene in the northern hemisphere, and the increase of heterogeneity and regionality of the coastal environments, the dating of layers within a formation is critical for understanding palaeoenvironment in terms of the sea surface temperatures.

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Cenozoic molluscan faunas and climatic changes in the northern Pacific related to Pacific gateways: review and perspective

Cited by 27 publications

References 42 publications

Morphological and Genetic Identification of the Validity of the SpeciesAtrina chinensis(Bivalvia: Pinnidae)

Morphological and Genetic Identification of the Validity of the SpeciesAtrina chinensis(Bivalvia: Pinnidae)

The coastal North Pacific: Origins and history of a dominant marine biota

First monodontid cetacean (Odontoceti, Delphinoidea) from the early Pliocene of the north‐western Pacific Ocean

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