Това са думите definitions, свързани с silurian. Щракнете върху която и да е дума, за да отидете на страницата с подробности за думата. Или, отидете на дефиницията на silurian.
0 from 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:
1 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:
Very recently, discoveries of some new and very well-preserved thelodonts from the Silurian of British Columbia were announced.