Results 131 to 140 of about 2,040 (162)
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Palaeogeography, Palaeoclimatology, Palaeoecology, 1977
Abstract The earliest-known fossil mysticete (baleen) whales, Mauicetus spp. (Cetacea: Mysticeti), occur in mid-Oligocene sediments in New Zealand. Evidence assembled here indicates that the evolution of the mysticetes was probably induced by plankton productivity changes associated with the initiation of the Circum-Antarctic Current in mid ...
Ewan Fordyce
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Abstract The earliest-known fossil mysticete (baleen) whales, Mauicetus spp. (Cetacea: Mysticeti), occur in mid-Oligocene sediments in New Zealand. Evidence assembled here indicates that the evolution of the mysticetes was probably induced by plankton productivity changes associated with the initiation of the Circum-Antarctic Current in mid ...
Ewan Fordyce
exaly +2 more sources
Niche Partitioning in Oligocene Toothed Mysticetes (Mysticeti: Aetiocetidae)
Journal of Mammalian Evolution, 2015Niche partitioning has long been considered to be a fundamental part of speciation and difference in body size is a straightforward proxy for ecology and niche partitioning. Here we report a new aetiocetid specimen from the upper part of Morawan Formation (Oligocene; late Chattian, ~26–24 Ma), Ashoro, Hokkaido, Japan.
Cheng-Hsiu Tsai, Tatsuro Ando
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Retinal Topography in Two Species of Baleen Whale (Cetacea: Mysticeti)
Brain, Behavior and Evolution, 2018Little is known about the visual systems of large baleen whales (Mysticeti: Cetacea). In this study, we investigate eye morphology and the topographic distribution of retinal ganglion cells (RGCs) in two species of mysticete, Bryde’s whale (<i>Balaenoptera edeni</i>) and the humpback whale (<i>Megaptera novaeanglia</i>).
Thomas J. Lisney, Shaun P. Collin
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Sur deux os de Jubarte (Mammalia, Mysticeti)
Bulletin mensuel de la Société linnéenne de Lyon, 1970L'omoplate et la vertèbre d'un grand Cétacé actuel ont été trouvées fortuitement grâce à un article de la presse locale. Leur étude détaillée montre qu'elles appartiennent à un Mégaptère, mysticète dont l'ostéologie est peu connue et qui est très rare dans les collections. Elles indiquent un individu de taille exceptionnelle.
Guérin, Claude, Rage, Jean-Claude
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The Telford “Cetothere” (Cetacea: Mysticeti: Cetotheridae)
Transactions of the Royal Society of South Australia, 2010AbstractThe mandible of a small whale, discovered in lower Miocene Gambier Limestone in a limestone quarry near Mount Gambier, South Australia, is described. Although preserving no diagnostic features in the strict sense, it lacks a character of modern mysticetes, and is tentatively referred to the extinct Family Cetotheriidae.
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Introduction to the Anatomy of the Head of a Neonate Gray Whale (Mysticeti, Eschrichtius robustus)
The Anatomical Record, 2015ABSTRACTThe gray whale (Eschrichtius robustus) is the sole living representative of the mysticete (baleen whale) family Eschrichtiidae. Previous anatomical work on gray whales has been limited owing, in part, to difficulties of specimen access. These contributions to the anatomy of the gray whale head based on dissection of a stranded specimen from ...
Annalisa, Berta +3 more
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The Earliest Gulp-Feeding Mysticete (Cetacea: Mysticeti) from the Oligocene of New Zealand
Journal of Mammalian Evolution, 2015Horopeta umarere is a new genus and species of extinct baleen whales from the Kokoamu Greensand (early Chattian, Oligocene, in the range 25–27 Ma), Hakataramea Valley, New Zealand. The geological age makes Horopeta umarere one of the earliest named baleen whales. Phylogenetic analysis indicates that Horopeta umarere may be the earliest crown Mysticeti (
Cheng-Hsiu Tsai, R. Ewan Fordyce
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Immunogenetics, 2006
The molecular diversity and phylogenetic relationships of two class II genes of the baleen whale major histocompatibility complex were investigated and compared to toothed whales and out-groups. Amplification of the DQB exon 2 provided sequences showing high within-species and between-species nucleotide diversity and uninterrupted reading frames ...
Baker, C. S. +5 more
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The molecular diversity and phylogenetic relationships of two class II genes of the baleen whale major histocompatibility complex were investigated and compared to toothed whales and out-groups. Amplification of the DQB exon 2 provided sequences showing high within-species and between-species nucleotide diversity and uninterrupted reading frames ...
Baker, C. S. +5 more
openaire +2 more sources