Origin of the white shark Carcharodon (Lamniformes: Lamnidae) based on recalibration of the Upper Neogene Pisco Formation of Peru

@article{Ehret2012OriginOT,
  title={Origin of the white shark Carcharodon (Lamniformes: Lamnidae) based on recalibration of the Upper Neogene Pisco Formation of Peru},
  author={Dana J. Ehret and Bruce J. MacFadden and Douglas S. Jones and Thomas DeVries and David A. Foster and Rodolfo Salas-Gismondi},
  journal={Palaeontology},
  year={2012},
  volume={55}
}
Abstract:  The taxonomic origin of the white shark, Carcharodon, is a highly debated subject. New fossil evidence presented in this study suggests that the genus is derived from the broad‐toothed ‘mako’, Carcharodon (Cosmopolitodus) hastalis, and includes the new species C. hubbelli sp. nov. – a taxon that demonstrates a transition between C. hastalis and Carcharodon carcharias. Specimens from the Pisco Formation clearly demonstrate an evolutionary mosaic of characters of both recent C… 

A TOOTH OF THE EXTINCT LAMNID SHARK, COSMOPOLITODUS PLANUS COMB. NOV. (CHONDRICHTHYES: ELASMOBRANCHII) FROM THE MIOCENE OF POHANG CITY, SOUTH KOREA

  • Chan-Gyu Yun
  • Environmental Science, Geography
    Acta Palaeontologica Romaniae
  • 2021
An isolated, upper lateral tooth of the extinct lamnid shark Cosmopolitodus planus (Agassiz, 1856), is described from middle Miocene marine deposits (possibly the Duho Formation) in Pohang City,

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A new large otodontid lamniform shark, Megalolamna paradoxodon gen. nov., chronostratigraphically restricted to the early Miocene, is described based on isolated teeth found from five globally distributed localities.

The most basal beaked whale Ninoziphius platyrostris Muizon, 1983: clues on the evolutionary history of the family Ziphiidae (Cetacea: Odontoceti)

The morphology of the oral apparatus suggests that Ninoziphius was less specialized for suction feeding than most extant ziphiids and is the most basal stem ziphiid in the cladistic analysis.

The Neogene fossil record of Aetomylaeus (Elasmobranchii, Myliobatidae) from the southeastern Pacific

The study reveals that the number of tooth rows and the shape of lateral teeth in extant species are seemingly very variable and need to be established before fossil specimens can be confidently identified, and assigns the fossil specimens from the Neogene of the TPSA to Aetomylaeus.

A New Long-Snouted Species of the Miocene Pontoporiid Dolphin Brachydelphis and a Review of the Mio-Pliocene Marine Mammal Levels in the Sacaco Basin, Peru

ABSTRACT With its short and pointed rostrum, the small fossil dolphin Brachydelphis mazeasi, from late middle to early late Miocene deposits of Chile and Peru, was originally described as an

A new species of Cretalamna sensu stricto (Lamniformes, Otodontidae) from the Late Cretaceous (Santonian-Campanian) of Alabama, USA

Decades of collecting from exposures of the Upper Cretaceous Tombigbee Sand Member of the Eutaw Formation and Mooreville Chalk in Alabama, USA has produced large numbers of isolated Cretalamna (sensu

A Partial Skeleton of a New Lamniform Mackerel Shark from the Miocene of Europe

A partial skeleton of an extinct lamniform shark consisting of 42 slightly disarticulated teeth, 49 vertebrae, and additional unidentifiable cranial and postcranial remains is described and a new genus, Carcharomodus, consequently is introduced.

A new small, mesorostrine inioid (Cetacea, Odontoceti, Delphinida) from four upper Miocene localities in the Pisco Basin, Peru

A new genus and species of inioid is described, Samaydelphis chacaltanae, characterized by an upper tooth count of c.

A new durophagous phocid (Mammalia: Carnivora) from the late Neogene of Peru and considerations on monachine seals phylogeny

A cladistic analysis including characters from the literature as well as original ones places Hadrokirus among lobodontines in a clade with Piscophoca pacifica, another phocid from the Pisco Formation and supports the monophyly of both Phocinae and Monachinae.
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