Phylum Arthropoda, Class Trilobita

Cambrian. The first appearance of trilobites defines the start of Series 2 of the Cambrian, and they can be found in strata up to the upper Permian, after which trilobites (among a large number of marine organisms) went extinct in the great catastrophe that removed over 90% of all species on earth. The greatest numbers of trilobite species occurred during the Cambrian and Ordovician periods, after which trilobite extinction trends exceeded radiation events.
Abstract/Description: Cambrian. The first appearance of trilobites defines the start of Series 2 of the Cambrian, and they can be found in strata up to the upper Permian, after which trilobites (among a large number of marine organisms) went extinct in the great catastrophe that removed over 90% of all species on earth. The greatest numbers of trilobite species occurred during the Cambrian and Ordovician periods, after which trilobite extinction trends exceeded radiation events.
Subject(s): Ontario, Canada
environmental sciences
Title: Phylum Arthropoda, Class Trilobita.
Type of Resource: still image
Genre: natural object
Physical Form: image/jpeg
Abstract/Description: Cambrian. The first appearance of trilobites defines the start of Series 2 of the Cambrian, and they can be found in strata up to the upper Permian, after which trilobites (among a large number of marine organisms) went extinct in the great catastrophe that removed over 90% of all species on earth. The greatest numbers of trilobite species occurred during the Cambrian and Ordovician periods, after which trilobite extinction trends exceeded radiation events.
Identifier(s): rockminx-10-2-1 (IID)
Subject(s): Ontario, Canada
environmental sciences
Held by: The University of Toledo
Location: Digital Initiatives, University of Toledo Libraries
Rights Statement: NO COPYRIGHT - UNITED STATES
Related Title: UT Department of Environmental Sciences.
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