Any of the terminal or smaller branches of an axon that terminates with specialized ending that releases neurotransmitters. Telodendria originally refer to the terminal branches of dendrites, now they refer to the main or terminal arborization of an axon. Word origin: Greek tÃ©los (end) + Greek dÃ©ndron (tree).
Permineralization is one of the ways in which a plant or animal can be turned into a fossil. During this process, mineral rich water seeps into the void spaces of an organism, leaving deposits of minerals behind that slowly build up, creating a cast of the organism.
A petrified log in Arizona is an example of permineralization. Mold fossils and cast fossils occur when an organism leaves an imprint that is fossilized. Mold fossils are when an imprint is made and that imprint is fossilized, whereas cast fossils are imprints that are filled in and then fossilized. This is a mold fossil of a bivalve, like a clam or oyster, from a dig sight in Ohio