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Geological Periods - Home

Cambrian Period
Ordovician Period
Silurian Period
Devonian Period
Carboniferous Period
Permian Period
Triassic Period
Jurassic Period
Cretaceous Period
Tertiary Period
Quaternary Period

The Cretaceous Period
144 to 65 Million Years Ago

Start:

Maybe near lowest occurrence of ammonite Berriasella jacobi.

Index Fossils:

Ammonites, Graptolites, Pelecypod

Evolution:

Dinosaurs and other reptiles dominate; seed-bearing plants appear, snakes, modern lizards, social insects (ants, bees etc.), marsupial, placental mammals; extinction dinosaurs and ammonites at end of period

Geography:

Continued separation of the continents, rising mountain ranges, cooler climate

Rocks:

Chalk


Anomalous Fossils:

Cat-like print

Large Mammal: This print was found in the middle of the cretaceous period (110 mya) This "cat-like" print is 9" across, larger than any known cat, past or present. While this print may not be a cat, it is definitely of a large mammal. According to evolutionary theory, the first large mammals did not appear until the early Tertiary Period (54-65 mya).




Living Fossils:

Coelacanth

Coelecanth: This species of fish was assumed extinct 65 million years ago during the cretaceous period, about the same time the dinosaurs are assumed to have become extinct. The earliest Coelecanth fossil is dated 375 million years ago during the devonian period and was assumed by evolutionists to be the missing link between fish and amphibians. In 1938 a Coelecanth was caught off the coast of Africa and is found to be identical as those in the fossil record.