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Hard to say.
Probably the T-Rex (tyrannosaurus rex).
Note: We cannot confirm ANYTHING, because obviously no humans were present back then and we only infer based on fossils, etc.
It was a bit like the now-a-day Lion. (that's not counting HUMANS, ofcourse.)
And there may have been MUCH, MUCH bigger animals, (as there is to the lion as well, for example bears and stuff) but the T-Rex were the most "dangerous". Even the bigger dinosaurs were mostly herbivores (that's vegetarians, for you), and were scared of T-Rex.
What else can I help you with?
Were conifers common during the mesozoic era?
Yes, conifers were common during the Mesozoic Era, which lasted from about 252 to 66 million years ago. They were one of the dominant plant groups alongside cycads and ferns during this time, especially during the Jurassic and Cretaceous periods. Conifers played a crucial role in shaping the diverse ecosystems of the Mesozoic Era.
Which was the golden age of gymnosperms?
The Mesozoic era, particularly the Triassic, Jurassic, and Cretaceous periods, is considered the golden age of gymnosperms. This was a time when gymnosperms were dominant in many terrestrial ecosystems and varied in size and form, with species like conifers, cycads, and ginkgo trees flourishing.
What era did the first dinosaur appear in?
The first dinosaurs lived in the beginning of the Mesozoic Era (or the Age of Reptiles). Birds were amazingly discovered to be dinosaurs so dinosaurs were also alive in the Cenozoic (that's our time-the Age of Mammals) to today.
What was the two new plants that came during the mesozoic era?
There were actually three types of plants that evolved in the Mesozoic. Cycads and ginkgos evolved around the late Triassic and early Jurassic. The firsts flowering plants appear in the fossil record during the early Cretaceous period of the Mesozoic era.
Which is true of North America during the Mesozoic era?
During the Mesozoic era, North America was divided by a shallow sea called the Western Interior Seaway. Landforms such as the Rocky Mountains began to form during this era due to tectonic activity. Dinosaurs were the dominant land animals during this time period.
What were the dominant organisms living at the time of cretaceous period?
dinosaurs
What were the dominant organisms in the permian period?
dimetrodon was the dominANT SPECIES OF THE permian period
What were the dominant organisms living in the vendian time period?
Metazoans were abundant during the Vendian Period.
What are five specific dominant organisms living during the permian time period?
dimetrodon and edaphosaurus
What were the dominant organisms living in Cretaceous time?
dinosaurs among animals on land and gymnosperms among plants
What were the dominant organisms living at that time?
During the Jurassic Period, dominant organisms included dinosaurs such as Brachiosaurus, Stegosaurus, and Allosaurus. Other notable organisms included pterosaurs, marine reptiles like ichthyosaurs and plesiosaurs, and early mammals. The flora was dominated by conifers and ferns.
Dominant organisms in tertiary time period?
During the Tertiary period, dominant organisms included early mammals, large birds, marine mammals like whales and dolphins, and diverse plant species. This period saw the rise of modern mammals, along with the evolution of grasslands, forests, and flowering plants. The Tertiary period also saw the decline of dinosaurs and the rise of more familiar animal groups.
What were the dominant organisms in the carboniferous time?
The dominant organisms during the carboniferous time period were plants. They were large, vascular, land plants that sometimes grew to be one hundred feet or more.
What were the dominant organisms in the Missippian time period?
it was the Crassigyrinus it was aguatic and had sharp teeth. == ==
What are the 4 traits of living organisms?
Living organisms eat, reproduce, change over time, and create waste.
Were conifers common during the mesozoic era?
Yes, conifers were common during the Mesozoic Era, which lasted from about 252 to 66 million years ago. They were one of the dominant plant groups alongside cycads and ferns during this time, especially during the Jurassic and Cretaceous periods. Conifers played a crucial role in shaping the diverse ecosystems of the Mesozoic Era.
Which was the golden age of gymnosperms?
The Mesozoic era, particularly the Triassic, Jurassic, and Cretaceous periods, is considered the golden age of gymnosperms. This was a time when gymnosperms were dominant in many terrestrial ecosystems and varied in size and form, with species like conifers, cycads, and ginkgo trees flourishing.
