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When did Phylum Chordata first appear?
Phylum Chordata first appeared over 500 million years ago during the Cambrian period in the early Paleozoic era. It includes vertebrates such as fish, amphibians, reptiles, birds, and mammals, making it one of the most diverse and successful groups of animals on Earth.
What era did first life appear?
Pre-Cambrian. It's when bacteria first came about.
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.
When did mammals first appear on earth by paleontologists?
Mammals first appear in the fossil record of the Mesozoic Era.
What group of animals seems to be dominant in the Cenozoic Era?
Mammals are the group of animals that appear to be dominant in the Cenozoic Era, which began around 66 million years ago and continues to the present day. This era is often referred to as the "Age of Mammals" due to the diversification and widespread success of mammalian species during this time.
What era did the first animals with both teeth and fins appear?
Silurian
In what era did most types of animals first appear?
before time even started when mesopotamians were alive.
What era did saber-toothed cat first appear?
probably mesozoic era
In what era did vertabrates appear?
Vertebrates first appeared during the Paleozoic era.
When did Phylum Chordata first appear?
Phylum Chordata first appeared over 500 million years ago during the Cambrian period in the early Paleozoic era. It includes vertebrates such as fish, amphibians, reptiles, birds, and mammals, making it one of the most diverse and successful groups of animals on Earth.
When did flying insects first appear?
the cenozoic era
What era did first life appear?
Pre-Cambrian. It's when bacteria first came about.
When did land based animals first become common?
Land based animals first became common in the Paleozoic Era. It is the earliest era of the 3 in the Phanerozoic Eon.
When did cockroaches first appear?
Actually they were from the Pennsylvanian Period and the Paleozoic Era...
What era did large mammals first appear?
The Cenozoic era at about 65 million years ago. The Paleogene period.
How did the mesozoic era get its name?
the etymology of metazoic means of the metazoa. a metazoa is defined as a multicellular animal having cells differentiated into tissues and organs and usually a digestive cavity and nervous system. so the metazoic era is the first era when such animals started to appear the term metazoic era was coined by Richard Levins in 1969
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.
