A Late Cretaceous marine long snout “pejelagarto” fish (Lepisosteidae, Lepisosteini) from Múzquiz, Coahuila, northeastern Mexico

Cenomanian vertebrates from Algora (central Spain): New data on the establishment of the European Upper Cretaceous continental faunas

“…Obaichthyid gars were small to medium-sized piscivorous predators that inhabited fresh and brackish waters of fluvial-deltaic and lacustrine-lagoonal environments (Grande, 2010;Cavin et al, 2015;Brito et al, 2016). However, the apparent dispersal of Obaichthys africanus from northern Africa to south-western Europe suggests that this form may have been able to live temporarily in marine environments, as observed in some other species of extinct and extant gars (see Alvarado-Ortega et al, 2016).…”

Giant gar from directly above the Cretaceous–Palaeogene boundary suggests healthy freshwater ecosystems existed within thousands of years of the asteroid impact

“…The poorly ornamented skull roof is composed of the paired nasals, frontals, parietals, dermopterotics and six extrascapulars. These bones are closely comparable to the same elements in other species of Atractosteus , and the frontals, premaxillae and parietals lack the elongation seen in longirostrine forms like Lepisosteus osseus , †' Lepisosteus ’ indicus and † Herreraichthys coahuilensis [34,46]. The premaxillae and frontals are also not heavily abbreviated as in † Masillosteus spp.…”

A large marine gar fish (Ginglymodi, Lepisosteiformes) from the Turonian Akrabou Formation of Asfla, Morocco

“…Marine lepisosteiforms are notoriously rare in the fossil record with the earliest known marine form being Nhanulepisosteus Brito et al, 2017 from the Late Jurassic Tlaxiaco Basin of southern Mexico (Brito et al, 2017). A second marine genus, Herreraichthys was described from the Santonian Austin Formation of Los Tamporales, northern Mexico by Alvarado-Ortega et al, (2016). Therefore, the occurrence of the Asfla gar is significant because it represents the earliest occurrence of a Cretaceous lepisosteiform to be found in a fully marine deposit.…”