15. which fossil would most likely be found in the same siltstone layer as a actinurus fossil? (1)…

15. which fossil would most likely be found in the same siltstone layer as a actinurus fossil? (1) cryptozoon (3) eldridgeops (2) halysites (4) agoniatites 15
Answer
Brief Explanations:
Fossils found in the same sedimentary layer (siltstone in this case) are likely to be from organisms that lived in the same geological time - period. Actinurus is a trilobite. Eldridgeops is also a trilobite. Organisms of the same taxonomic group are more likely to be found in the same layer as they had similar environmental requirements and lived in the same general time - frame.
Answer:
(3) Eldridgeops