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7 results for “Kogiidae”
Data from: Nasal compartmentalization in Kogiidae (Cetacea, Physeteroidea): Insights from a new late Miocene dwarf sperm whale from the Pisco Formation
<p class="Abstract"><span><span><span><span><span><span><span><span><span><span><span>Facial compartmentalization in the skull of extant pygmy whales (Kogiidae) is a unique feature among cetaceans that allows the housing of a wide array of organs responsible for echolocation. Recent fossil findings depict a remarkable disparity of the facial bone organization in Miocene kogiids, but the significance of such a rearrangement for the evolution of the clade has been barely explored. Here we describe <i>Kogia danomurai</i> sp. nov., a late Miocene (ca. 5.8 Ma) taxon from the Pisco Formation (Peru), based on a partially preserved skull with a new facial bone pattern. Our phylogenetic analysis recovers <i>K. danomurai</i> as the most basal representative of the extant genus <i>Kogia</i>, displaying a combination of derived (incipiently developed and excavated sagittal facial crest) and plesiomorphic features (high position of the temporal fossa and antorbital notch not transformed into a narrow slit). Furthermore, when compared with the extant <i>Kogia</i>, the facial patterning found in <i>K. danomurai</i> indicates differential development among the facial organs, implying different capabilities of sound production relative to extant <i>Kogia</i> spp. Different facial bone patterns are particularly notable within the multi-species kogiid assemblage of the Pisco Formation, which suggests causal connections between different patterns and feeding ecologies (e.g., nekton piscivory and benthic foraging). At about 5.8 Ma, <i>K. danomurai</i> was part of a cetacean community composed by clades typical of the late Miocene as well as other early representatives of extant taxa, a mixture probably depicting the initial faunal change toward the coastal ecosystem dynamics of the present-day Southeastern Pacific.</span></span></span></span></span></span></span></span></span></span></span></p>
Distribution. Cosmopolitan in temperate and tropical waters of the Atlantic, Pacific, and Indian oceans; concentrations of stranding records occur along E USA, South Africa, and New Zealand and to a lesser degree on French and Spanish coasts; precise at-sea distribution is unknown. in Kogiidae
Distribution. Cosmopolitan in temperate and tropical waters of the Atlantic, Pacific, and Indian oceans; concentrations of stranding records occur along E USA, South Africa, and New Zealand and to a lesser degree on French and Spanish coasts; precise at-sea distribution is unknown.
Distribution. Apparently mainly tropical, but also temperate waters of the Atlantic, Pacific, and Indian oceans; stranding records concentrated on Atlantic and Pacific coasts of S USA, South Africa, and S coast of the Arabian Peninsula; a single record exists for the Mediterranean (Italy). Precise atsea distribution is unknown. in Kogiidae
Distribution. Apparently mainly tropical, but also temperate waters of the Atlantic, Pacific, and Indian oceans; stranding records concentrated on Atlantic and Pacific coasts of S USA, South Africa, and S coast of the Arabian Peninsula; a single record exists for the Mediterranean (Italy). Precise atsea distribution is unknown.
Data from: Nasal compartmentalization in Kogiidae (Cetacea, Physeteroidea): Insights from a new late Miocene dwarf sperm whale from the Pisco Formation
Open the record for dataset details and reuse information.
Kogia breviceps Photo: FLPA in Kogiidae
Kogia breviceps Photo: FLPA
• 200-420 cm. in Kogiidae
• 200-420 cm.
• Cosmopolitan in temperate and tropical seas. in Kogiidae
• Cosmopolitan in temperate and tropical seas.
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