Trilobites

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by arthuraloian
Last updated 4 years ago

Discipline:
Social Studies
Subject:
Prehistory

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Trilobites

Time Line

Ordovician

Silurian

Devonian

Carboniferous

Permian

Cambrian

Paleontologic Study of Trilobites By: Arthur Aloian

Trilobites have fossil records that date back to about 540 million years ago. Trilobites are thought to have come from what would be modern siberia today. The first picture above shows a Redlichida trilobite, one of the very first of its kind.

Trilobites are a group of extinct marine arthropods, that form the class Trilobita. They are from the kingdom Animalia in the phylum arthropoda. These creatures first appeared in the Atdabanian stage of the early Cambrian period, 521 million years ago. Trilobites reached their height of their exsistence in the lower Paleozoic era and started to die out during the Devonian. Trilobites were totally extinct after the Permian mass extinction, 250 millions ago.

The spieces of trilobites that are thought to be the oldest are: Profallotaspis Jakutensis, Fritzaspis spp, Hupetina Antiqua, and est Serrania Gordaensis.

Ordivician

Trilobites maintainted high diversity levels between the Cambrian and Ordivician. They began to die off in the Devonian and became extinct by the end of the Permian.

FUN FACT: Some trilobites could enroll for protection.

FUN FACT: Humans collected trilobites, some have been found in human burial mounds dating back more than 50,000 years.


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