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It depends on what size "group" one is talking about. There were two big groups, the Ornithischians, whose members had hips like those of modern birds, and the Saurischians, whose hips were more lived those of lizards.
Within these two groups, there were smaller, but still pretty populous, groups of Theropods, Sauromorphopods, Stegosaurs, Ankylosaurs, Ceratopsians, Hadrosaurs, Pachycephosaurs, Dromaeosaurs, Ornithomimi, and probably others that haven't been discovered.
The smaller groups are the Genera, and these are the names you know: Apatosaurus, Tyrannosaurus, Triceratops, etc.
What else can I help you with?
Are dinosaurs classed in different groups?
Yes There is the bird-hipped dinosaurs and the reptile or lizard-hipped dinosaurs. These were further subdivided into smaller groups.
How many spiecies of dinosaurs are there?
There are about 2000 different species of dinosaurs http://www.dinosaurfact.net
What are the names of the two major groups of dinosaurs?
The two major groups of dinosaurs are the Saurischia (lizard-hipped dinosaurs) and the Ornithischia (bird-hipped dinosaurs). These groups are distinguished by differences in their pelvic bone structure.
How many dinosaurs does it take to reach 2 thousand trillion tons?
What dinosaurs? They came in VERY different sizes.
Which dinosaurs are herbavores?
Most dinosaurs were herbivores. The main groups of herbivorous dinosaurs are hadrosaurs, sauropods, ceratopsians, stegosaurs, ankylosaurs, and pachycephalosaurs.
How many different species of dinosaurs live in mesozoic era?
1500
Which dinos lived in the cretaceous?
In cretaceous period there were many different dinosaurs there were 67 different type's.
Were dinosaurs soical animal or did they live alone?
Some dinosaurs traveled in groups, and some were more solitary.
How many dinosaurs was in total in the past?
We do not know the total number of dinosaurs that existed, as many have not been discovered. Currently, there are 500 known genera and 1,000 different species.
How many different kinds of dinosurs were there?
To date, about 600, but it is estimated that there were about 1400+ dinosaurs.
Describe how today's lizards are thought to be like and different from many dinosaurs?
Today's lizards are thought to be similar to many dinosaurs in their body structure and functioning, as both groups are reptiles with scaly skin, ectothermic (cold-blooded) metabolism, and similar reproductive strategies. However, lizards are generally smaller, have more diverse diets, and exhibit a wider range of locomotion compared to many dinosaurs, which included large, dominant species with varied adaptations for different environments. Additionally, lizards are more adaptable to varied habitats, while many dinosaurs were specialized for specific ecological niches. Evolutionarily, lizards are considered a part of the archosaur lineage that diverged from the ancestors of dinosaurs, highlighting both a shared heritage and distinct evolutionary paths.
Why was the roman empire diversed?
The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.The Roman empire was diverse because it encompassed many different ethnic groups of people and many different cultures and gods.
