Silurianadjective
/saɪˈlʊə.ri.ən//sɪˈlʊr.i.ən/specializedfrom or referring to the period of time between about 445 and 420 million years ago, in which fish with jaws (= mouth bones) and some plants and small animals on land first appeared:
the Silurian period
Silurian rocks
Thesaurus: synonyms and related words
Prehistory
- Australopithecus
- broch
- brontosaurus
- carboniferous
- caveman
- mesolithic
- neolithic
- Ordovician
- Palaeogene
- palaeolithic
- prehistoric
- prehistory
- primaeval
- primal
- primeval
- stegosaurus
- stone-age
- the Anthropocene
- troglodyte
- tyrannosaurus
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the Silurian
noun [ S ] ukus
the Silurian period