he diagram shows fossils buried in layers of rock.
Which conclusion is best supported by the diagram?
Gastropod
Coral
Triobite
Fern
O Trilobites and gastropods are the youngest fossils.
O Crinoids and gastropods have lived during the same
time period.
O Ferns have existed for a longer period of time than
coral.
O Every ammonite fossil is older than the gastropod
Orinoid
Ammonite
fossils.