We describe the first occurrence of the Late Cretaceous lamniform shark, Johnlongia
sp.(Elasmobranchii: Odontaspididae), from the Smoky Hill Chalk Member of the Niobrara …

ABSTRACT A preliminary analysis of late Cretaceous fossil shark teeth collected in the
marine Chatsworth Formation at Dayton Canyon, Simi Hills, Los Angeles County, California …

The middle part of the Cretaceous represents a time of high diversity and rapid rates of
dental evolution in lamniform sharks. Several species had a very wide spatial distribution …

Teeth of Ptychodus are known from the uppermost Lower Cretaceous and throughout the
Upper Cretaceous (Albian to Maastrichtian), and have been reported from North and West …

Megatoothed sharks (Family: Otodontidae) are among the most widely reported sharks in
Cenozoic marine sediments worldwide, and certain species such as the famed …

The submerged continental shelf of Onslow Bay, North Carolina, preserves hardbottom
limestone scarps with underlying clays as small isolated exposures in progressively deeper …

Cardabiodon ricki and Cardabiodon venator were large lamniform sharks with a patchy but
global distribution in the Cenomanian and Turonian. Their teeth are generally rare and …

Isolated teeth of a middle Miocene cetorhinid genus, Cetorhinus Blainville 1816, occur
abundantly in rocks of the Round Mountain Silt, Sharktooth Hill Bonebed, southeastern San …

An associated specimen of the large fossil lamnid shark Carcharodon angustidens from the
Late Oligocene of New Zealand's South Island preserves approximately 165 teeth, and 32 …

ABSTRACT Ptychodus (Elasmobranchii: Ptychodontidae) is an enigmatic durophagous
shark known from Cretaceous marine deposits nearly worldwide based primarily on isolated …