Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Tertiary. The study of prehistoric fish is called paleoichthyology. A few living forms, such as the coelacanth are also referred to as prehistoric fish, or even living fossils, due to their current rarity and similarity to extinct forms. Fish which have become recently extinct are not usually referred to as prehistoric fish.
Read more about Prehistoric Fish: Overview, Cambrian, Silurian, Devonian, Late Devonian, Later Periods, Living Fossils
Famous quotes containing the words prehistoric and/or fish:
“Of course
the New Testament is very small.
Its mouth opens four times
as out-of-date as a prehistoric monster,
yet somehow man-made....”
—Anne Sexton (1928–1974)
“When the weather is bad as it was yesterday, everybody, almost everybody, feels cross and gloomy. Our thin linen tents—about like a fish seine, the deep mud, the irregular mails, the never to-be-seen paymasters, and “the rest of mankind,” are growled about in “old-soldier” style. But a fine day like today has turned out brightens and cheers us all. We people in camp are merely big children, wayward and changeable.”
—Rutherford Birchard Hayes (1822–1893)