noun
: a fossil that shows the existence or activity of an animal or plant but is not formed from the animal or plant itself
trace fossils of dinosaur footprints and arthropod burrows
noun
: a fossil that shows the existence or activity of an animal or plant but is not formed from the animal or plant itself
trace fossils of dinosaur footprints and arthropod burrows
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012