Slimonia
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Slimonia is a genus of eurypterid, an extinct group of aquatic arthropods. Fossils of Slimonia have been discovered in deposits of Silurian age in South America and Europe. Classified as part of the f
Slimonia acuminata 1
Life restoration of S. acuminata. The short chelicerae are hidden beneath the head.
Fossil of S. acuminata
Ventral and dorsal views of S. acuminata. Note the ventral view is missing the short chelicerae that were actually present.
Eurypterina
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Eurypterina is one of two suborders of eurypterids, an extinct group of chelicerate arthropods commonly known as "sea scorpions". Eurypterine eurypterids are sometimes informally known as "swimming eu
Slimonia
…is. The cladogram below is simplified from a study by O. Erik Tetlie (2007), and showcases the position of Slimonia relative to the rest of the Eurypterina suborder of eurypterids, with the Stylonurina suborder as an outgroup. In 2017, W. Scott Persons IV and John Acorn reported finding an S. acuminata…
Life restoration of Eurypterus. Eurypterus is by far the most well-studied and well-known eurypterid and its fossil specimens probably represent more than 90 % of all known eurypterid specimens.
Fossil of Mixopterus, a mixopterid.
Fossil of Jaekelopterus, a pterygotioid. At a length of 2.5 meters, it is one of the largest arthropods to have ever lived.