Invertebrate Paleontology

9.

Phylum Arthropoda

9.1.

General Characteristics

9.1.1.

Exoskeleton and Molting

9.1.2.

Segmentation and Tagmosis

9.1.3.

Jointed Appendages

9.2.

Subphylum Trilobita

9.2.1.

General Morphology

9.2.1.1.

9.2.1.2.

9.2.1.3.

9.2.1.4.

9.2.1.5.

9.2.2.

9.2.2.1.

Types and Significance

9.2.3.

9.2.3.1.

Holochroal Eyes

9.2.3.2.

Schizochroal Eyes

9.2.4.

Ontogeny and Molting

9.2.4.1.

9.2.4.2.

Enrollment Behavior

9.2.5.

9.2.5.1.

9.2.5.2.

9.2.5.3.

9.2.6.

Paleoecology and Extinction

9.2.6.1.

Habitats and Life Modes

9.2.6.2.

End-Permian Extinction

9.3.

Subphylum Chelicerata

9.3.1.

General Features

9.3.2.

Class Merostomata

9.3.2.1.

9.3.2.1.1.

Morphology and Ecology

9.3.2.1.2.

Geological Range

9.3.2.2.

9.3.2.2.1.

Morphology and Modern Representatives

9.4.

Subphylum Crustacea

9.4.1.

General Features

9.4.2.

Class Ostracoda

9.4.2.1.

Shell Structure

9.4.2.2.

Paleoecological Significance

9.4.3.

Class Malacostraca

9.4.3.1.

Morphology and Fossil Record

9.4.4.

Class Maxillopoda

9.4.4.1.

Morphology and Fossil Record

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10. Phylum Echinodermata