Changing environments
Trilobite.
Although researching has provided a definition for the word trilobite there does not seem to be any reference as to why one would be referred to as a trilobite. A trilobite is an extinct arthropod from Paleozoic times of which the skeleton is divided into three parts.
A phacops fossil is the preserved remains or trace of an extinct genus of trilobite, a group of marine arthropods that lived during the Paleozoic era. These fossils are typically found in ancient marine sediments and are characterized by their distinctive appearance, with segmented bodies, compound eyes, and a hard exoskeleton.
exoskeleton
Trilobite fossils are most probably the exoskeleton of an animal. Abandoned when the animal shed its shell to grow a new one as part of the growth process. A collection of abandoned shells could then be winnowed by ocean currents and piled up as a large group in an eddy. Such winnowing of shells is a common marine process.
The exoskeleton composition did not change through time in trilobites. Trilobites maintained a calcite exoskeleton throughout their existence in the fossil record.
Trilobite.
Trilobite+sand=crab
rock and plankton
Although researching has provided a definition for the word trilobite there does not seem to be any reference as to why one would be referred to as a trilobite. A trilobite is an extinct arthropod from Paleozoic times of which the skeleton is divided into three parts.
they have exoskeleton
A phacops fossil is the preserved remains or trace of an extinct genus of trilobite, a group of marine arthropods that lived during the Paleozoic era. These fossils are typically found in ancient marine sediments and are characterized by their distinctive appearance, with segmented bodies, compound eyes, and a hard exoskeleton.
Yes; many cnidarians have an exoskeleton.
The trilobite is able to survive droughts because it is eggs can survive millions of years before hatching.
The trilobite.
3
Trilobite.