Some researchers even put the Onychophora into the Arthropoda (very common among German researchers). Tardigrades are sometimes found closer to nematodes though, and more data is needed to resolve this controversy. 2: Relations within the Arthropoda This is where all the chaos is. read more
The Insecta (insects) are a Class of the large animal Phylum called ARTHROPODA (arthropods) - a name that refers to the jointed limbs. The other major Classes of living arthropods (i.e. animals related to insects) include the Crustacea (crabs, lobsters, shrimps, barnacles, woodlice, etc.), the Myriapoda (millipedes, centipedes, etc.) and the Arachnida (scorpions, king crabs, spiders, mites, ticks, etc.). read more
Extinct and modern arthropods: Scientific classification; Kingdom: Animalia: Superphylum: Ecdysozoa (unranked): Panarthropoda (unranked): Tactopoda: Phylum: Arthropoda Lankester, 1904: Subphyla, unplaced genera, and classes; Subphylum †Trilobitomorpha †Trilobita – trilobites (extinct) Subphylum Chelicerata. Arachnida – spiders, scorpions, etc. read more
Although arthropods are the most numerous phylum on Earth, and thousands of arthropod species are venomous, they inflict relatively few serious bites and stings on humans. Far more serious are the effects on humans of diseases carried by blood-sucking insects. read more