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Is synthetic interferon used in the treatment of Hepatitis C and in some cancers?
In what time period did fish develop and trilobites rule the ocean?
Time when trilobites and fish arrived?
the Mesoic period
Which type of organism appeared for the first time during the Cambrian period?
Trilobites
What geologic time period was the trilobite fossil associated?
Trilobites were associated with the Paleozoic era, from the Cambrian to the Permian.
What time period was the creature trilobite in?
Trilobites originated during the Cambrian era, flourished through the Paleozoic era, declined during the Devonian era, and finally became extinct in the Permean mass extinction event. In total there were live trilobites on the earth for about 290 million years.
When did trilobites first appear in fossil record?
The first trilobites appear about the same time in Siberian, Moroccan and North American strata of about 524 million years of age, at the start of series 2 of the Cambrian Period. The first trilobites include fallotaspidoids Profallotaspis, Eofallotaspis, and Fritzaspis, but also include an ellipsocephaloid, Hupetina. For the role of trilobites in biostratigraphy, see this page: http://www.trilobites.info/biostratigraphy.htm
How do you take care of trilobites?
Trilobites have been extinct for a long time; there are none left for us to take care of.
Ordovician time period?
The Ordovician was in the Paleozoic era, and lasted from 505 to 438 million years ago. Trilobites were common then, and the earliest jawless, bony fish.
How paleontologists use trilobites fossils as index fossils for various geologic time periods?
Trilobites were rapidly evolving and widespread marine organisms that spanned a number of geologic time periods. Certain types of trilobites only appeared in specific segments of geologic time; therefore, when one of these trilobites is found, you can be certain that the rock layer it is found in is of a certain geologic age.
How do paleontologist use trilobites as index fossils for various geological time periods?
Trilobites were rapidly evolving and widespread marine organisms that spanned a number of geologic time periods. Certain types of trilobites only appeared in specific segments of geologic time; therefore, when one of these trilobites is found, you can be certain that the rock layer it is found in is of a certain geologic age.
What time period did Cincinnatus rule the empire?
1754
What period of time did the abbasids rule?
the hairy ana1 black p00p period blood.
