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Há 1 dia · Origin of birds. The scientific question of within which larger group of animals birds evolved has traditionally been called the " origin of birds ". The present scientific consensus is that birds are a group of maniraptoran theropod dinosaurs that originated during the Mesozoic Era . A close relationship between birds and dinosaurs was first ...
Há 1 dia · Tyrannosauroidea (meaning 'tyrant lizard forms') is a superfamily (or clade) of coelurosaurian theropod dinosaurs that includes the family Tyrannosauridae as well as more basal relatives. Tyrannosauroids lived on the Laurasian supercontinent beginning in the Jurassic Period.
Há 19 horas · فارسی: الیکاییهای نوکباریک suomi: Naskalipeukaloiset українська: Мишовій 中文: 细嘴鹪鹩属
Há 2 dias · Ceratopsian dinosaurs lived during the entire Cretaceous Period, from 145.5 million years ago to 66 million years ago. Ceratopsian fossils have been discovered in North America, Europe, and Asia. Many of these animals would have lived in forested areas that had plenty of vegetation for herds of them to feed on.
- Ceratopsian dinosaurs were herbivores.
- They lived during the Cretaceous Period, 145.5 to 65.5 million years ago. They went extinct at the end of the Cretaceous along with the other dinos...
- Some were as small as a dog; others were bigger than a car. The Triceratops was 30 feet long and weight 4-5 tons.
Há 3 dias · It comprises the Pseudosuchia, the "false crocodiles", and the Avemetatarsalia, which in turn comprises the dinosaurs (including birds) and pterosaurs. Pseudosuchia is defined as living crocodilians and all archosaurs more closely related to crocodilians than to birds.
Há 1 dia · Feathers or feather-like structures (filaments) are attested in most lineages of theropods (see feathered dinosaur ). However, outside the coelurosaurs, feathers may have been confined to the young, smaller species, or limited parts of the animal. Many larger theropods had skin covered in small, bumpy scales.
Há 1 dia · Sauropoda ( / sɔːˈrɒpədə / ), whose members are known as sauropods ( / ˈsɔːrəpɒdz /; [1] [2] from sauro- + -pod, ' lizard -footed'), is a clade of saurischian ('lizard-hipped') dinosaurs. Sauropods had very long necks, long tails, small heads (relative to the rest of their body), and four thick, pillar-like legs.
