1Relating to or denoting the era between the Precambrian eon and the Mesozoic era.Formerly called "Primary"
- ‘In addition to the dominant Precambrian and Paleozoic rocks, there are small deposits of Mesozoic rocks on the island as well.’
- ‘The studied sequence at the transition to the axial zone in NE Sardinia is estimated to have a Precambrian to Palaeozoic age.’
- ‘This tectonostratigraphy contains metamorphic rocks of both early Palaeozoic and Precambrian age with metamorphic grade generally increasing to the west.’
- ‘Pre-Aptian structure reflects both Palaeozoic rifting and Mesozoic modification.’
- ‘Rocks of late Precambrian and early Paleozoic age have yielded a variety of tiny spine-like fossils of dominantly organic or weakly phosphatic composition.’
- ‘Cliffs forming the margins of rifts are thought to have developed in this way, with retreat occurring since the Late Cretaceous in Precambrian to Palaeozoic rocks.’
- ‘To the west of Siberia is the very large early Mesozoic and later Western Siberian Basin, which covers the Palaeozoic rocks and their sutures.’
- ‘This idea is difficult to test, because data on Palaeozoic and Precambrian facies trends and structures are limited.’
- ‘Under a thin Jurassic conglomerate a Palaeozoic succession of interbedded reddened sandstone, mudstone and basalt was preserved.’
- ‘The Anatolian region has been formed by the amalgamation of smaller continental fragments that were formerly sited at the northern margin of Gondwana during late Palaeozoic and early Mesozoic times.’
- 1.1as noun the Paleozoic The Paleozoic era or the system of rocks deposited during it.
Mid 19th century: from paleo- + Greek zōē ‘life’ + -ic.
We take a look at several popular, though confusing, punctuation marks.