11. the new york state index fossil valcouroceras is classified as a a. coral b. crinoid c. eurypterid d…

11. the new york state index fossil valcouroceras is classified as a a. coral b. crinoid c. eurypterid d. nautiloid

11. the new york state index fossil valcouroceras is classified as a a. coral b. crinoid c. eurypterid d. nautiloid

Answer

Brief Explanations:

Valcouroceras is a well - known nautiloid fossil. Nautiloids are a group of marine cephalopods. It is not a coral (which are polyps that build calcium - carbonate skeletons), not a crinoid (which are echinoderms), and not an eurypterid (which are an extinct group of chelicerate arthropods).

Answer:

D. nautiloid