The Infraclass Archosauromorpha is a member of the Subclass Diapsida. Here is the complete "parentage" of Archosauromorpha:
- Domain: Eukaryota
- Kingdom: Animalia
C. Linnaeus, 1758 - animals
- Subkingdom: Bilateria
(Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Branch: Deuterostomia
Grobben, 1908 - Deuterostomes
- Infrakingdom: Chordonia (Haeckel, 1874) Cavalier-Smith, 1998
- Branch: Deuterostomia Grobben, 1908 - Deuterostomes
- Subkingdom: Bilateria (Hatschek, 1888) Cavalier-Smith, 1983 - bilaterians
- Kingdom: Animalia C. Linnaeus, 1758 - animals
The Infraclass Archosauromorpha is further organized into finer groupings including:
- Order (12): Avetheropoda · Crocodylia · Ichnites · Lagosuchia · Neornithischia · Ornithischia · Prolacertiformes · Pterosauria · Rhynchosauria · Saurischia · Thecodontia · Trilophosauria
Ichnites is an ichnogenus of dinosaur footprint. [more]
Neornithischia ("new ornithischians") is a clade of the dinosaur order Ornithischia. They are the sister group of the Thyreophora within the clade Genasauria. Neornithischians are united by having a thicker layer of asymmetrical enamel on the inside of their lower teeth. The teeth wore unevenly with chewing and developed sharp ridges that allowed neornithischians to break down tougher plant food than other dinosaurs. [more]
Ornithischia ( or-ni-thiss-kee-?) or Predentata is an extinct order of beaked, herbivorous dinosaurs. The name ornithischia is derived from the Greek ornitheos (?????e???) meaning 'of a bird' and ischion (?s????) meaning 'hip joint'. They are known as the 'bird-hipped' dinosaurs because of their bird-like hip structure, even though birds actually descended from the 'lizard-hipped' dinosaurs (the saurischians). Being herbivores that sometimes lived in herds, they were more numerous than the saurischians. They were prey animals for the theropods and were smaller than the sauropods. [more]
Pterosaurs (, from the Greek pte??sa????, pterosauros, meaning "winged lizard") were flying reptiles of the clade or order Pterosauria. They existed from the late Triassic to the end of the Cretaceous Period (210 to 65.5 million years ago). Pterosaurs are the earliest vertebrates known to have evolved powered flight. Their wings were formed by a membrane of skin, muscle, and other tissues stretching from the legs to a dramatically lengthened fourth finger. Early species had long, fully toothed jaws and long tails, while later forms had a highly reduced tail, and some lacked teeth. Many sported furry coats made up of hair-like filaments known as pycnofibres, which covered their bodies and parts of their wings. Pterosaurs spanned a wide range of adult sizes, from the very small Nemicolopterus to the largest known flying creatures of all time, including Quetzalcoatlus and Hatzegopteryx. [more]
Saurischia ( saw-ris-kee-?, from the Greek sauros (sa????) meaning 'lizard' and ischion (?s????) meaning 'hip joint') is one of the two orders, or basic divisions, of dinosaurs. In 1888, Harry Seeley classified dinosaurs into two orders, based on their hip structure. Saurischians ('lizard-hipped') are distinguished from the ornithischians ('bird-hipped') by retaining the ancestral configuration of bones in the hip. [more]
Trilophosaurs were lizard-like Triassic diapsid reptiles related to the archosaurs. The best known genus is Trilophosaurus, a herbivore up to 2.5 meters long. It had a short, unusually heavily-built skull, equipped with massive, broad flattened cheek teeth with sharp shearing surfaces for cutting up tough plant material. Teeth are absent from the premaxilla and front of the lower jaw, which in life were probably equipped with a horny beak. [more]
At least 5 species and subspecies belong to the Order Trilophosauria.
More info about the Order Trilophosauria may be found here.
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