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The plants of the Devonian period were very small. The animals that survived were cartilaginous fish like sharks and rays. Some squid and octopus survived as well.
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Is the Devonian time before or after the mass extinction?
Which mass extinction? There have been five such events. The first one, the Ordovician-Silurian extinction event occurred before the Devonian. The Late Devonian event occurred during the Devonian. All other mass extinctions occurred after the Devonian.
How long did the species of Cheirolepis exist and what was its habitat and place on food chain.?
It was introduced to the world in the Early Devonian and it died in the Late Devonian.
Why do you think that some flowering plants survived when dinosaurs were extinct?
I think some plants actually survived because they were able to adapt to cooler climates and the ones that became extinct couldn't. One of the survivng Late Cretaceous flowering plants is the Magnolia.
What dangers might travelers face in the devonian period?
A traveler should watch out for armored placoderms. If the traveler is in the Early Devonian, these fish did not have teeth, but plates in their jaws that acted as teeth. By the late Devonian though, they had developed jaws that could measure up to 33 ft. The only thing a traveler should worry about on land is insects, because no other animals existed during this period. The traveler should watch out if they are visiting the Late Devonian because of the high levels of carbon dioxide in the atmosphere, colder temperatures, and meteorites striking the earth,
In what earth period did pangaea occur?
the late Carboniferous periodfrom the devonian to the permian
Why did the creatures in the Cambrain Explosion live underwater?
The creatures in the Cambrian Explosion lived under water because most of them had shells that they used to protect them All life was in the water in the Cambrian. Neither animals nor plants had evolved to the point where they could exist out of a marine or fw environment for many millions of years. Although a few land plants and fungi showed up in late Ordovician it was early Devonian before land-dwelling invertebrates emerged and mid-Devonian before the first land vertebrates appeared.
What kingdoms composed the three-kingdoms classification system used by scientist in the late 1800?
animals, plants, and protists
What is the earliest known amphibian fossil?
The earliest known amphibian fossils can be dated back to 375 million years ago. The fossil of Elginerpeton was found in Scotland and was from the Late Devonian period.
What has the author Brian K Holdsworth written?
Brian K Holdsworth has written: 'A provisional radiolaria biostratigraphy, late Devonian through late Permian' -- subject(s): Geology, Stratigraphic, Stratigraphic Geology
Why was the dunkleosteus extinct?
The dunkleosteus lives in the warmer climates and was Thoth to swim in the shallow
What are the extinction of animals in the very distant past?
There were five major extinction events in the past. They are called the Cretaceous-Tertiary (or K-T) extinction event, the late Devonian mass extinction, the Permian mass extinction, the Ordovician-Silurian mass extinction and the Triassic-Jurassic mass extinction event.
When did the first amphibians appear?
6 billion years ago No, the Earth is only 4.6 billion years old. Amphibians appeared on Earth during the late Devonian period in the Paleozoic Era about 365 million years ago. Hope that helps!
