Chelicerata

• Arachnida
• Merostomata
• Pycnogonida

• Cheliceramorpha: Systematics, Part 1  - Provides information on classification, taxonomy and phylogeny of this animal group. With sources.
• Chelicerata  - Explores taxonomic variance, anatomy, major subgroups, fossil forms, evolutionary history, and modern forms.
• Chelicerates  - Discusses the characteristics of species under this animal group. With photos.
• Introduction to the Cheliceramorpha  - Presents the order of arthropods that includes spiders, scorpions, mites and ticks.
• Spectrum of Life Chelicerates  - Provides information on this branch of the phylum that includes ticks, mites, horseshoe crabs, scorpions and spiders.