Definitions

1. adjective

Relating to or designating the ectozoic division of the fossil record, which is characterized by the presence of certain invertebrate animals.

“Fossils from the ectozoic era provide valuable insights into the evolution of marine life.”

2. noun

The ectozoic division of the fossil record.

“The museum is showcasing a new exhibit on the ectozoic era, featuring ancient fossils of mollusks and other invertebrates.”