evolution

Created by LauJA 

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16 terms

fossils

the perserved trace, imprint, or remains of a plant or animal

petrification

the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape

mold

shape or influence

tetrapod

A vertebrate possessing two pairs of limbs, such as amphibians, reptiles, birds, and mammals.

cast
cast

a type of body fossil that forms when crystals fill a mold or sediments wash into a mold and harden into rock

imprints

shallow prints or marks in rocks

tarpit

Hollow in the ground in which natural tar accumulates by seepage.., Hollow in the ground in which natural tar accumulates by seepage

amber

a deep yellow color

lead

a soft heavy toxic malleable metallic element

trace fossil

a type of fossil that provides evidence of the activities of ancient organisms

evolved

to develop gradually by process of growth and change

uranium
uranium

a white, radioactive metallic chemical element that weighs more than any other element in nature.

bipedal

having two feet

Radioactive dating

technique in which scientists calculate the age of a sample based on the amount of remaining radioactive isotopes it contains

geologic time scale

a chronological arrangement of geologic time subdivided into units

Paleontologist

a scientist who studies fossils to learn about organisms that lived long ago

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