While horseshoe crabs are still in existent, sea scorpions are now extinct. Compared to other classes that consist of organisms found in different environments, Horseshoe crabs which are the only surviving organisms in this class are largely marine organisms. For this reason, most species, apart ...
Chelicerata; superclass Chelicerata (spiders; scorpions; horseshoe crabs)Arachnida; class Arachnida (a large class of arthropods including spiders and ticks and scorpions and daddy longlegs; have four pairs of walking legs and no wings)superclass Myriapoda (used in some classifications to encompass ...
Arthropods are the most successful animals on Earth, displaying the greatest species diversity, with over one million identified species. Examples of arthropods include insects, crabs, centipedes, and spiders. There are 16 different classes of arthropods....