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Fish first appeared in the Ordovician Period.

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Are trilobite fossils older than fish fossils?

No. Trilobytes are the oldest fossils ever found. They are the reason the theory of evolution is still only a theory. They were complex organisms with all the basic organs, complex eyes and a respitory sytem. If evolution is true, why for over two centuries have no fossils been found leading up to their evolutionary "place."


The oldest vertebrate fossils are those of ------- with no jaws?

Agnatha, also known as jawless fish, are the oldest vertebrate fossils with no jaws. This group includes ancient species like the ostracoderms and the agnathan fish.


How are fish fossils formed?

Fish fossils are formed when a dead fish is buried in sediment that eventually hardens into rock. Over time, the organic material in the fish decays, leaving behind a cavity that gets filled in with minerals. These minerals create a cast of the fish's body, which becomes a fossil.


If you found ocean fish fossils below land animals fossils what would that tell you?

It would tell you that an ocean once existed there and then withdrew.


Which important fossils are most likely to be found in a rock formed during the Ordovician period of the Paleozoic era?

During the Ordovician period, important fossils likely to be found include various marine organisms such as trilobites, brachiopods, and graptolites. Additionally, early coral reefs and primitive fish fossils, like those of ostracoderms, may also be present. The diversity of life during this time reflects a significant evolutionary expansion in marine ecosystems. Fossils from this period often provide insights into early vertebrate evolution and the development of complex marine habitats.

Related Questions

Fossils of fish appeared approximately 500 mya during the?

Cambrian


Are trilobite fossils older than fish fossils?

No. Trilobytes are the oldest fossils ever found. They are the reason the theory of evolution is still only a theory. They were complex organisms with all the basic organs, complex eyes and a respitory sytem. If evolution is true, why for over two centuries have no fossils been found leading up to their evolutionary "place."


What types of fossils are most likely to be found?

fish fossils and little animal fossils and also shells


What are some petrified fossils?

fish


What types of rocks are fossils most likely to be found?

fish fossils and little animal fossils and also shells


Can fish have fossils?

Yes, hundreds of species of fish can be found in the fossil record.


The oldest vertebrate fossils are those of ------- with no jaws?

Agnatha, also known as jawless fish, are the oldest vertebrate fossils with no jaws. This group includes ancient species like the ostracoderms and the agnathan fish.


Why were Tiktaalik fossils found in the arctic even though the fish was thought to be from tropical locals?

Tiktaalik fossils were found in the Arctic because the region was warm and had a more temperate climate during the time when the fish lived. The movement of tectonic plates over millions of years shifted the location of the Arctic from a tropical area to a colder climate. This is why fossils of Tiktaalik, which originated in a warm marine environment, are now discovered in the Arctic region.


What fish were examples of living fossils?

tuna and salmon


Which animals are the oldest vertebrates fossils?

fish with no jaw........novanet


How are fish fossils formed?

Fish fossils are formed when a dead fish is buried in sediment that eventually hardens into rock. Over time, the organic material in the fish decays, leaving behind a cavity that gets filled in with minerals. These minerals create a cast of the fish's body, which becomes a fossil.


Where would you find fossils of fish?

In a place where there used to be a body of water