Dromopoda is a subclass of the arachnids, including the Opiliones (harvestmen), Scorpions, Pseudoscorpions and Solifugae ("camel spiders"). The latter three are sometimes grouped as Novogenuata. In object-oriented programming, subclass is a class that is derived from another class or classes. ... 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. ... Diversity 4 suborders Suborders Cyphophthalmi Eupnoi Dyspnoi Laniatores Harvestmen (also known as daddy long-legs) are eight-legged invertebrate animals belonging to the order Opiliones (formerly Phalangida) in the class Arachnida, in the subphylum Chelicerata of the phylum Arthropoda. ... Superfamilies Pseudochactoidea Buthoidea Chaeriloidea Chactoidea Iuroidea Scorpionoidea See classification for families. ... A pseudoscorpion, (also known as a false scorpion or book scorpion), is an arachnid belonging to the order Pseudoscorpionida, also known as Pseudoscorpiones or Chelonethida. ... A Solifugid The order Solifugae is a group of arachnids, containing around 900 species. ... Novogenuata is a clade of the arachnid subclass Dromopoda including the Scorpiones, Pseudoscorpiones and Solifugae and is considered by Shultz (1990) the sister group of the Opiliones. ...

However, morphological analysis showed the Dromopoda to be monophylic only when fossils were not taken into account (Giribet et al. 2002).

References

• Shultz, J.W. (1990): Evolutionary morphology and phylogeny of Arachnida. Cladistics 6: 1-38.
• Giribet, G., Edgecombe, G.D., Wheeler, W.C. & Babbitt, C. (2002): Phylogeny and systematic position of Opiliones: a combined analysis of chelicerate relationships using morphological and molecular data. Cladistics 18: 5-70.