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Archosauromorpha
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Archosauromorpha is a clade of diapsid reptiles containing all reptiles more closely related to archosaurs than lepidosaurs. Archosauromorphs first appeared during the late Middle Permian or Late Perm
Archosauromorpha
Archosauromorpha
An interaction between two archosauromorphs: Ornithosuchus ( a member of Archosauriformes) scavenging on Hyperodapedon (a rhynchosaur)
An interaction between two archosauromorphs: Ornithosuchus ( a member of Archosauriformes) scavenging on Hyperodapedon (a rhynchosaur)
The skeleton of Protorosaurus, one of the oldest archosauromorphs and namesake of the problematic group "Protorosauria"
The skeleton of Protorosaurus, one of the oldest archosauromorphs and namesake of the problematic group "Protorosauria"
Champsosaurus, a gharial-like choristodere which survived the Cretaceous-Paleocene extinction event. Choristoderes may represent the fifth group of ar
Champsosaurus, a gharial-like choristodere which survived the Cretaceous-Paleocene extinction event. Choristoderes may represent the fifth group of archosauromorphs, but their origin is obscured.
Triassic–Jurassic extinction
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The Triassic–Jurassic extinction event, often called the Triassic–Jurassic mass extinction or end-Triassic extinction, marks the boundary between the Triassic and Jurassic periods, 201.4 million years
Archosauromorpha
…end of the Triassic period, but the most famous group of archosauromorphs not only survived, but have continued to diversify and dominate beyond the Triassic-Jurassic extinction. These were the Archosauriformes, a diverse assortment of animals including the famous dinosaurs and pterosaurs. Two subclades of Archosauriformes…
Capitosaurs (such as this Mastodonsaurus) were among the major amphibian groups which became extinct at the T–J boundary, though many may have died ou
Capitosaurs (such as this Mastodonsaurus) were among the major amphibian groups which became extinct at the T–J boundary, though many may have died out earlier.
Reptile extinction at the end of the Triassic is poorly understood, but phytosaurs (such as this Redondasaurus) went from abundant to extinct by the e
Reptile extinction at the end of the Triassic is poorly understood, but phytosaurs (such as this Redondasaurus) went from abundant to extinct by the end of the Rhaetian.
Maximum extent of CAMP volcanism at the Triassic-Jurassic boundary
Maximum extent of CAMP volcanism at the Triassic-Jurassic boundary
The Manicouagan reservoir in Quebec, a massive crater formed by a Late Triassic impact. Radiometric dating has determined that it is about 13 million
The Manicouagan reservoir in Quebec, a massive crater formed by a Late Triassic impact. Radiometric dating has determined that it is about 13 million years older than the Triassic–Jurassic boundary, and thus an unlikely candidate for a mass extinction.