Afrofilistata Andoharano Filistata Filistatinella Filistatoides Kukulcania Lihuelistata Microfilistata Misionella Pikelinia Pritha Sahastata Tricalamus Wandella Yardiella Zaitunia Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Phyla Porifera (sponges) Ctenophora (comb jellies) Cnidaria Placozoa Subregnum Bilateria Acoelomorpha Orthonectida Rhombozoa Myxozoa Superphylum Deuterostomia Chordata (vertebrates, etc. ... Subphyla and Classes Subphylum Trilobitomorpha Trilobita - Trilobites (extinct) Subphylum Chelicerata Arachnida - Spiders, Scorpions, etc. ... Orders Acarina Amblypygi Araneae Opiliones Palpigradi Pseudoscorpionida Ricinulei Schizomida Scorpiones Solifugae Uropygi The arachnids, Arachnida, are a class of invertebrate animals in the subphylum Chelicerata. ... For other uses, see Spider (disambiguation). ... Anton Ausserer (1843 - 1889) was an Austrian naturalist specialising in spiders. ... Species â Misionella didicostae Misionella mendensis Misionella is a genus of crevice weaver spiders. ...