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For Insects, Spiders & Their Kin
For the United States & Canada
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Infraorder Mygalomorphae - Mygalomorphs

Sonoran Desert Spider, hunting from a hole - Aphonopelma trapdoor spider? - Cyclocosmia Black spider Tarantula? Male or Female Please help identify this spider - northern CA - Calisoga Tarantula? Trap door spider? - Aphonopelma Immature Tarantula Light tarantula, night - Aphonopelma
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Chelicerata (Chelicerates)
Class Arachnida (Arachnids)
Order Araneae (Spiders)
Infraorder Mygalomorphae (Mygalomorphs)
over 2,500 spp. in 280 genera placed in 15 families worldwide(1)
Easily distinguished from araneomorphs by two pairs of booklungs; fangs and chelicerae are parallel to the body axis.

In North America, the only mygalomorphs that have claw tufts are the tarantulas (family Theraphosidae).
This is a more primitive group of spiders which includes the infamous tarantulas, primarily represented by members of Family Theraphosidae. Other familiar members include the trapdoor spiders and purseweb spiders.