Use the image below. Which fossil is a good example of an index fossil?
O Gastropod because it appears in multiple layers (long period of time) and in 3 columns (multiple areas)
• Trilobite because it only appears in one layer (limited time) and in one column (single area.
• Ammonite because it appears in only 1 layer (limited time) but in 3 columns (multiple areas.
• Gastropod because it appears in multiple layers (long period of time) and in 3 columns (multiple areas
Based on the given information, the Gastropod fossil is a good example of an index fossil. It appears in multiple layers, indicating a long period of time, and in three columns, indicating multiple areas.
Based on the information provided, the fossil that is a good example of an index fossil is the Trilobite. This is because it only appears in one layer, indicating a limited time period, and in one column, suggesting a single area.
Based on the information given, the fossil that is a good example of an index fossil is the Trilobite.
Index fossils are used to help determine the relative age of rock layers in different locations. They are organisms that lived for a relatively short period of time but were widespread geographically. This makes them useful for correlating rock layers from different places and determining the relative ages of those layers.
In the case of the Trilobite, it is mentioned that it only appears in one layer, indicating a limited period of time when this organism existed. Additionally, it is mentioned that it appears in one column, which suggests it was found in a single area. These characteristics make Trilobite a good index fossil since its presence or absence in a particular rock layer can be used to estimate its relative age in comparison to other rock layers.