title: Evolution, diversity, and disparity of the tiger shark lineage <i>Galeocerdo</i> in deep time
abstract: Sharks have a long and rich fossil record that consists predominantly of isolated teeth due to the poorly mineralized cartilaginous skeleton. Tiger sharks (<i>Galeocerdo</i>), which represent apex predators in modern oceans, have a known fossil record extending back into the early Eocene (ca. 56 Ma) and comprise 22 recognized extinct and one extant species to date. However, many of the fossil species remain dubious, resulting in a still unresolved evolutionary history of the tiger shark genus. H
journal: Paleobiology