Definition of Pterygotioids. Meaning of Pterygotioids. Synonyms of Pterygotioids

- with the pterygotioids, which are thought to have originated within, or in close proximity to, Laurentia. It remains unclear whether pterygotioids were capable...
- distinguished primarily by sharing several features with more basal pterygotioid eurypterids, such as its appendages being similar to those of Slimonia...
- families Pterygotidae and Slimonidae. Despite their classification as pterygotioids, the hughmilleriids possessed several characteristics shared with other...
- combining characteristics of Hughmilleria with those of the derived pterygotioids, showing a more advanced morphology than that of Hughmilleria. With...
- been noted as possessing a mix of features from both more primitive pterygotioids such as Slimonia and more derived members of the group firmly within...
- had a distribution similar to the cosmopolitan distribution of the pterygotioids, though they were not as common nor as successful. The Carcinosomatoidea...
- appendages lacked spines (unlike many other groups, particularly primitive pterygotioids). The telson was expanded and flattened and possessed a small median...
- Fossil of Jaekelopterus, a pterygotioid. At a length of 2.5 meters, it is one of the largest arthropods to have ever lived....
- Herefordopterus they were completely marginal, a feature present in all pterygotioid genera. In addition, the triangular anterior carapace margin present...
- that distinguishes members of the group from eurypterids of the other pterygotioid families, Slimonidae and Hughmilleriidae, and other eurypterids in general...