Publications by authors named "R W Boessenecker"
Article Synopsis
- * The most significant discoveries of these fossils come from New Zealand's Kokoamu Greensand and Otekaike Limestone, revealing some of the largest and oldest eomysticetid specimens.
- * Research indicates that Eomysticetidae may have engaged in skim-feeding, had rudimentary teeth and baleen, experienced significant growth in snout length, and possibly used Zealandia as a calving area, with extinction occurring around the Oligo-Miocene boundary.
Article Synopsis
- - The genus Lamnidae, known for species like the modern white shark, has a fossil record dating back to the late Oligocene and is found globally, with many extinct species recognized from the Cenozoic era.
- - This text reports the first occurrences of two extinct species of Lamnidae in New Zealand, specifically on the South Island.
- - Notably, fossil teeth from these species indicate some of the earliest known instances of these taxa, with one originating from late Miocene deposits and representing the southernmost findings of the group.
Extant baleen whales (Mysticeti) uniquely use keratinous baleen for filter-feeding and lack dentition, but the fossil record clearly shows that "toothed" baleen whales first appeared in the Late Eocene. Globally, only two Eocene mysticetes have been found, and both are from the Southern Hemisphere: Mystacodon selenensis from Peru, 36.4 mega-annum (Ma) ago and Llanocetus denticrenatus from Antarctica, 34.
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