Aquilolamna

Aquilolamna is an extinct genus of shark-like elasmobranch from the Late Cretaceous (Turonian)-aged Agua Nueva Formation of Mexico. It is currently known to contain only one species, A. milarcae, also known as the eagle shark, and it is classified in its own family Aquilolamnidae, which has been tentatively assigned to the mackerel sharks.

== Taxonomy == thumb|left|Paleoart|Life restoration. While Aquilolamna is thought to be an elasmobranch, its taxonomy is disputed as, despite the holotype being a well-preserved body fossil, no teeth are known, which are important for determining the taxonomic affinities of fossil sharks; they are thought to have been dislodged when the individual died, although they could be preserved deeper in the matrix. Potential skin impressions preserved with the fossil could potentially be just fossilized bacterial mats. It was tentatively assigned to Lamniformes in its original description based on some morphological similarities to other members of the family. However, due to its extremely unusual features, other paleontologists have reservations about classifying it as such, and future research may be required. It has also been suspected that Aquilolamna may have been closely allied with Cretomanta, an extinct neoselachian of uncertain taxonomic affinity described in 1990 from teeth found in Texas (with further remains found in Canada and Colorado). Cretomanta lived around the same time as Aquilolamna and, given their possible similarities, both genera may belong to the same (unknown) family.