Category
page 1Late Jurassic crocodylomorphs

Dakosaurus
Dakosaurus is an extinct genus of crocodylomorph within the family Metriorhynchidae that lived during the Late Jurassic and Early Cretaceous. It was large, with teeth that were serrated and compressed lateromedially (flattened from side to side). The genus was established by Friedrich August von Quenstedt in 1856 for an isolated tooth named Geosaurus maximus by Theodor Plieninger in 1846. Dakosaurus was a carnivore that spent much, if not all, of its life out at sea. The extent of its adaptation to a marine lifestyle means that it is most likely that it mated at sea, but since no eggs or nests

Metriorhynchidae
thumb|Life restoration of members of the Metriorhynchinae compared to a human
Metriorhynchidae is an extinct family of specialized, aquatic metriorhynchoid crocodyliforms from the Middle Jurassic to the Early Cretaceous period (Bajocian to early Aptian) of Europe, North America and South America. The name Metriorhynchidae was coined by the Austrian zoologist Leopold Fitzinger in 1843. The group contains two subfamilies, the Metriorhynchinae and the Geosaurinae. They represent the most marine adapted of all archosaurs.

Goniopholididae
Goniopholididae is an extinct family of moderate-sized semi-aquatic neosuchian crocodyliformes. Their bodyplan and morphology are convergent on living crocodilians. They lived across Laurasia (Asia, Europe and North America) between the Middle Jurassic (possibly Early Jurassic, see below) and the Late Cretaceous.

Hallopus victor
Hallopus is an extinct genus of small "sphenosuchian" crocodylomorph, known from the Late Jurassic Morrison Formation of North America. The only known species Hallopus victor was originally named in 1877 as a species of the dinosaur Nanosaurus, and was moved into its own genus by Othniel Charles Marsh in 1881. It was a quite small animal, reaching a length of 1 m (3.3ft) with long and slender limbs. Macelognathus, a similarly slender-proportioned crocodylomorph to Hallopus, may be synonymous with it.
Aggiosaurus
Aggiosaurus is an extinct genus of geosaurine metriorhynchid crocodyliform known from the Late Jurassic (late Oxfordian stage) of Nice, southeastern France. It contains a single species, Aggiosaurus nicaeensis, which was named by H. Ambayrac in 1913.
Sunosuchus
Sunosuchus is an extinct genus of goniopholidid mesoeucrocodylian. Fossils are known from China, Kyrgyzstan, and Thailand and are Jurassic in age, although some may be Early Cretaceous. Four species are currently assigned to the genus: the type species S. miaoi and the species S. junggarensis, S. shartegensis, and S. shunanensis. All species are from China. Goniopholis phuwiangensis, also from Thailand, was reassigned to Sunosuchus by Andrade et al. (2011). The material from Kyrgyzstan has not been assigned to any species.
Hsisosuchus
Hsisosuchus is an extinct genus of crocodyliform from China. Currently there are three species within this genus: H. dashanpuensis is from the Middle Jurassic, while H. chungkingensis and H. chowi are from the Late Jurassic. It is likely to have been a medium-sized (~ long) predator.
thumb|left|Skull and [[vertebrae of H. chungkingensis at the Hong Kong Science Museum]]
Fossils of H. chungkingensis were found in the Shangshaximiao Formation (near Chongqing city). The holotype consists of the cranial skeleton and caudal osteoderms. A more complete specimen was found and des
Atoposaurus
Atoposaurus is an extinct genus of crocodylomorph. It is the type genus of the family Atoposauridae. Fossils have been found that were Late Jurassic in age from two distinct species in France and Germany.
Sichuanosuchus
Sichuanosuchus is an extinct genus of crocodyliform from the Late Jurassic and possibly Early Cretaceous of China.
Macelognathus
Macelognathus is an extinct genus of sphenosuchian crocodylomorph from the Late Jurassic. Originally it was believed be a turtle and later a dinosaur. It lived in what is now Wyoming, in North America.
thumb|left|Skeletal restorations
The type species, Macelognathus vagans, was described by Othniel Charles Marsh in 1884 as a turtle based on a partial jaw from the Late Jurassic Morrison Formation at Como Bluff, Wyoming. After being referred to the Dinosauria by Moodie in 1908, it was later reclassified by Ostrom in 1971 as a crocodilian relative. Based on new material from the Morrison Formati
Paralligatoridae
Paralligatoridae is an extinct family of neosuchian crocodyliforms that existed during the Jurassic and Cretaceous periods. It includes the genera Paralligator, Brillanceausuchus, Kansajsuchus, Shamosuchus, Doratodon, Scolomastax, Sabresuchus, Rugosuchus, and Batrachomimus.
Knoetschkesuchus
Knoetschkesuchus is a genus of small atoposaurid crocodylomorph from the Late Jurassic of Germany and Portugal. Two species are known: the German species K. langenbergensis, described by Schwarz and colleagues in 2017 based on two partial skeletons and various isolated bones; and the Portuguese species K. guimarotae, named from over 400 specimens including several partial skeletons. Knoetschkesuchus was a small and short-snouted crocodilian, measuring about in length, that primarily fed on small prey, including invertebrates, amphibians, and mammals. This specialization towards small prey ecol
Maledictosuchus
thumb
Maledictosuchus is an extinct genus of marine crocodyliform belonging to the family Metriorhynchidae. It is the most basal member of the Rhacheosaurini Tribe with a relatively short body length, measuring based on the type specimen.
thumb|left|Holotype skull
Fruitachampsa
Fruitachampsa is a genus of shartegosuchid crocodyliform from the Upper Jurassic Morrison Formation of Colorado. It is known from multiple specimens that show it to have been a relatively long-limbed terrestrial quadrupedal predator less than long, with a short face and a prominent pair of canine-like teeth in the lower jaw. Before it was formally described in 2011, it was also known as the "Fruita form". Its type species is F. callisoni.