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What else can I help you with?
Did amphibians evolve from early reptiles?
no
What has the author Wann Langston written?
Wann Langston has written: 'Permian amphibians from New Mexico' -- subject(s): Amphibians, Fossil, Fossil Amphibians, Paleontology 'Fossil vertebrates and the late Palaeozoic red beds of Prince Edward Island' -- subject(s): Paleontology 'A hadrosaurian ichnite' -- subject(s): Footprints, Fossil, Fossil Footprints, Hadrosauridae, Paleontology 'Champsosaur giants' -- subject(s): Champsosaurus, Paleontology 'Ziphodont crocodiles, Pristichampsus vorax (Troxell), new combination, from the Eocene of North America' -- subject(s): Accessible book, Crocodilians, Fossil, Fossil Crocodilians, Paleontology, Pristichampsus vorax, Fossil Crocodiles
Why are amphibians sometime called ecological indicators?
Because unhealthy amphibians can be an early sign of changes in an ecosystem.
The footprint of a dinosaur are an example of what type of fossil?
They are an example of a trace fossil
Is petroleum an example of fossil fouls?
Petroleum is a example of a fossil fuel.
How long have amphibians been on earth?
Tetrapods (early amphibians) emerged in the fossil record some time int he lower Carboniferous, around 360 million years ago. Reptiles emerged later in the carboniferous, 320-310 million years ago, and were probably the dominant terrestrial fauna by the start of the Permian, 299 million years ago. If any period in geological history could be described as the age of the amphibians, it would be the lowere-to-middle Carboniferous.
What are the moist breathing sacs of early amphibians called?
lungs
What has the author Joseph Anton Tihen written?
Joseph Anton Tihen has written: 'A new Pliocene species of Ambystoma' -- subject(s): Fossil Ambystoma, Fossil Amphibians
What did the animals look like when fossil fuels were made?
The prehistoric animals that would become our fossil fuels lived during the Carboniferous age. Terapods four legged reptile-like creatures with backbones. Early amphibians also moved from the water to land. This age was also well known of its super sized insects.
Why are amphibians named with a word that means double life?
Because amphibians spend its early life in water and it's adult life on land
What are the example of fossil fuels?
Fossil fuels are: coal methane, petroleum.
Early amphibians had moist breathing sacs called?
Gills, the larval forms of amphibians still have gills wich drop off eventually at the end of metamorphosis.
