ERIC Number: EJ297250
Record Type: Journal
Publication Date: 1984
Pages: N/A
Abstractor: N/A
ISBN: N/A
ISSN: N/A
EISSN: N/A
Part I: The Evidence Cycles of Extinction.
Brownlee, Shannon
Discover, v5 n5 p22-24 May 1984
Discusses a theory suggesting that large-scale extinctions of marine animal families occur in cycles of 26 million years. Research methodology consisted of analyzing and charting fossil records showing the decline and disappearance of these animals over the past 250 million years. Other theories are considered. (BC)
Descriptors: Animals, Climate, College Science, Higher Education, Paleontology, Science Education, Scientific Research, Theories
Publication Type: Journal Articles; Reports - General
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A
