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Title:

Bacteria: Fossil Record

Url:

https://ucmp.berkeley.edu/bacteria/bacteriafr.html

Publisher:

University of California, Berkeley. Museum of Paleontology

Description: This description of the fossil record of bacteria focuses on one particular group of bacteria, the cyanobacteria or blue-green algae, which have left a fossil record that extends far back into the Precambrian. The oldest cyanobacteria-like fossils known are nearly 3.5 billion years old and are among the oldest fossils currently known. Cyanobacteria are larger than most bacteria and may secrete a thick cell wall. More importantly, cyanobacteria may form large layered structures, called stromatolites (if more or less dome-shaped) or oncolites (if round). The site also refers to pseudomorphs of pyrite and siderite, and a group of bacteria known as endolithic. Two links are available for more information. One provides information on the discovery of possible remains of bacteria-like organisms on a meteorite from Mars and the other has a research report on fossilized filamentous bacteria and other microbes, found in Cretaceous amber.

LC Classification:

Science -- Geology -- Paleontology
Science -- Geology -- Paleontology -- Study and teaching
Science -- Microbiology -- Cyanobacteria
Science -- Natural history. Biology -- Natural history (General)

GEM Subject:

Science
Science -- Biology
Science -- Biological and life sciences
Science -- Earth science
Science -- Geology
Science -- Natural history
Science -- Paleontology

Resource Type:

Reference Material
Instructional Material
Audio/Visual -- Image/Image Set

Format:

Document -- HTML

Audience:

Educator
Learner

Education Level:

High School
Middle School
Higher Education -- Undergraduate (Lower Division)
Higher Education -- Technical Education (Upper Division)
Higher Education -- Technical Education (Lower Division)

Language:

English

Rights:

Regents of the University of California

Access Rights:

Free access

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Source:

DLESE

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