paleozoic
Meaning
relating to or denoting the era of geological time between the precambrian and the mesozoic, comprising the cambrian, ordovician, silurian, devonian, carboniferous, and permian periods.
the paleozoic era or the system of rocks deposited during it.
Structure
Usage
the paleozoic era saw the emergence of fish, amphibians, and early reptiles.
these paleozoic rock layers contain abundant fossils of trilobites.
the great extinction event at the end of the paleozoic wiped out nearly 90% of marine species.
Etymology
the term paleozoic was coined in the 19th century by geologists to name a major geological era. it is a modern scientific compound formed directly from greek roots: 'palaios' (ancient) and 'zōion' (life). the literal meaning, "pertaining to ancient life," perfectly captures the era's defining characteristic, as it marks the first appearance and diversification of complex life forms in the fossil record. the suffix '-ic' is used to form the standard adjective, aligning with other geological era names like mesozoic and cenozoic.
Analysis
paleo originates from greek 'palaios', meaning 'ancient' or 'old'. zo originates from greek 'zōion', meaning 'animal' or 'living being'. ic is an english adjective-forming suffix from latin '-icus' and greek '-ikos', meaning 'pertaining to'.