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Precambrian
What else can I help you with?
What are two major biological events in mesozoic era?
The Rocky Mts. Formed and Pangea started to break apart
Were there bugs during the cretaceous period?
Yes, there were bugs during the Cretaceous period, which lasted from around 145 to 66 million years ago. Insects were diverse and abundant during this time, with many different species thriving in various ecosystems around the world.
What are the animals in the 4 geologic eras?
Precambrian Era: During this first Era, about 3.6 billion years ago the first prokaryotic organisms evolved (LUCA). 2 billion years later, the first eukaryotic cells evolved. At the end of this Era, simple multicellular organisms like sponges, jellyfish, worms, and shelled organisms. Paleozoic Era: This Era begins with the cambrian explosion of life. A great variety of organisms evolved. During this era the oceans exploded with life. The Ozone layer was created and the first land plants, insects, amphibians, and first reptiles evolved. This era is also known as the Age of Amphibians. Mesozoic Era: Known as the Age of Dinosaurs, it is reptiles that rule the land and that by the Jurassic perios, has grown in size and variety. Flying reptiles with feathers evolved(ancestors of birds) and the first mammals (the size of a mouse) evolved. Cenozoic Era: Is the age of mammals. Because there is no mayor competition, mammals are allowed to flourish and develop into large forms(Mammoth, Mastodont, Giant Sloths, Saber tooth tigers, etc). the first primates evolved, they look very similar to big squirrels and lated lemurs. Humans evolved about 200,000 years ago.
What major events that occurred Mesozoic Era during the time period?
During the Mesozoic era, dinosaurs, pterosaurs, and large marine reptiles diversified. Early mammals evolved. Eventually, flowering plants evolved. At the end, dinosaurs died out, leaving mammals to fill the many empty niches.
When did woody material in plants evolve?
Woody material in plants evolved around 400 million years ago during the Devonian period, giving rise to the first trees. This development allowed plants to grow larger and taller, providing structural support and access to more light for photosynthesis.
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 group of plants evolve during the mesozoic era and dominant today?
Precambrian
What group of plants evolved during the Mesozoic era and is dominated today?
Angiosperms They produced seeds that are protected they are the most diverse and abundant land plants today. Present day angiosperms that evolved during the mesozic era include magnolia and oak trees.
Dinosaurs and angiosperms were the most visibly dominant lineages during which geologic era?
I know that the angiosperms were most dominant during the cretaceous period but im not too sure about the dinosaurs dominant era. I would assume they were both dominant in the same era but I am not 100% sure.Read more: http://wiki.answers.com/Dinosaurs_and_angiosperms_were_dominant_lineages_during_with_geologic_era#ixzz1G5bqBpQR
Cycads and ginkgoes were important plants to the world's terrestrial ecosystems during what period?
Cycads and ginkgoes were important plants to the world's terrestrial ecosystems during the Mesozoic era, which lasted from around 252 million years ago to 66 million years ago. They were dominant plant groups during this time and played a significant role in the ecosystems of that period.
What are two events from the Mesozoic era?
Events during the Mesozoic include the increasing dominance of dinosaurs. The Mesozoic is marked by the appearance of flowering plants.
What group of plants was becoming dominant as humans evolved?
Okay first of all, humans did NOT evolve from monkeys or anything like that. So there were NO plants that became dominant as humans evolved. Evolving is for dummies!! :0)
What is the most successful during the Mesizoic era?
Dinosaurs were the most successful group of animals during the Mesozoic era, dominating terrestrial ecosystems for millions of years. They evolved into a diverse range of shapes and sizes and were the top predators in many environments. The Mesozoic era also saw the rise of flowering plants and the expansion of marine reptiles.
When did flowering plants first appear?
Flowering plants first appeared around 140 million years ago during the Cretaceous period. They rapidly diversified and became the dominant group of plants, replacing many of the existing groups at the time.
When did flowering plants evolve?
In the Mesozoic Era, during the cretaceous period
When did flowing plants evolve during the mesozoic era?
Flowing plants, or angiosperms, are believed to have evolved during the Mesozoic Era, specifically in the Early Cretaceous period, around 140 million years ago. This marked a significant evolutionary development as angiosperms began to diversify and dominate terrestrial ecosystems, leading to a wide variety of flowering plants. Their emergence had a profound impact on the evolution of insects and other organisms, contributing to the complex interplay of life during this era.
What plant and other animal existed along the dinosaurs?
Plants during the beginning of the Mesozoic (the era when dinosaurs existed), included conifers and tree ferns. At the end of the Triassic, cycads and then ginkgos evolved. All of the above were the primary plants throughout the rest of the Mesozoic, except ginkgos which began to decline in the early Cretaceous. At the beginning of the Cretaceous, the first flowering plants evolved. Before the end of the Mesozoic, there were already Magnolids (trees that include magnolias) and palms. Many of the same groups of animals that exist today coexisted with dinosaurs. Insects like roaches and dragonflies existed alongside dinosaurs, and termites and ants evolved in the Jurassic. Wasps and bees evolved during the early Cretaceous. Small mammals evolved during the Mesozoic, and birds evolved from dinosaurs in the early Cretaceous. Frogs and salamanders, as well as turtles, first appeared in the Jurassic, and modern crocodillians appeared in the Cretaceous. Some extinct animals that coexisted with dinosaurs include icthyosaurs, plesiosaurs, pterosaurs, huge amphibians like Koolasuchus, mosasaurs, and fully marine crocodilymorphs called thalattosuchians.
