Crocodylinae

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Crocodylinae is a subfamily of true crocodiles within the family Crocodylidae, and is the sister taxon to Osteolaeminae (dwarf crocodiles and slender-snouted crocodiles).

Taxonomy

Crocodylinae was cladistically defined by Christopher Brochu in 1999 as Crocodylus niloticus (the Nile crocodile) and all crocodylians more closely related to it than to Osteolaemus tetraspis (the Dwarf crocodile).<ref name=C.thorbjarnarsoni>Template:Cite journal</ref><ref name="Rio2021"/> This is a stem-based definition, and is the sister taxon to Osteolaeminae.

Crocodylinae contains the extant genus Crocodylus. It is disputed as to whether is also includes Mecistops (slender-snouted crocodiles),<ref name="Rio2021">Template:Cite journal</ref><ref name="Azzara2021">Template:Cite journal</ref> or the extinct genus Voay.<ref name="Hekkala2021">Template:Cite journal</ref>

Phylogeny

Some morphological studies have recovered Mecistops as a basal member of Crocodylinae, more closely related to Crocodylus than to Osteolaemus and the other members of Osteolaeminae,<ref name="Rio2021">Template:Cite journal</ref><ref name="Azzara2021">Template:Cite journal</ref> as shown in the cladogram below.<ref name="Azzara2021"/> Template:Clade

The below cladogram is based on a 2021 study using paleogenomics that extracted DNA from the extinct Voay, recovering it as a member of Crocodylinae.<ref name="Hekkala2021"/> Recently recognised species (M. leptorhynchus, C. halli and the third Osteolaemus species) placed according to 2023 study by Sales-Oliveira et al.<ref name="Sales-Oliveira2023">Template:Cite journal</ref> Template:Clade

Species list

File:Crocodylus acutus mexico 01.jpg
American crocodile at La Manzanilla, Jalisco, Mexico
File:Voay robustus.JPG
A skull of the extinct Voay robustus

Crocodylinae contains 13-14 extant species and 6 extinct species.

References

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Template:Crocodilia Template:Extinct Crocodilia

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