They seem to have reached their peak in the Silurian. Eurypterids are not Crustaceans. The Eurypterid order belongs to the Chelicerata superclass. This class ...
Studies on a well-preserved fossil assemblage of eurypterids from the Pragian-aged Beartooth Butte Formation in ...
Their distant relative, the horseshoe crab of the order Xiphosura, has survived to ...
Eurypterids : On the left, Eurypterus, is from the Silurian of New York state, USA ( the fossil Eurypterus remipes was adopted as the state fossil in 1984). At right ...
The order Eurypterida Burmeister, 1843, is here defined by the
Description: Eurypterids are commonly called sea scorpions.
The evolution of feeding within Euchelicerata: data from the fossil groups Eurypterida and Trigonotarbida illustrate possible evolutionary ...
Order Eurypterida (eurypterids). Picture(s), A systematic diagram of a eurypterid's anatomy. Common ...
Eurypterids are an extinct order of arthropods, commonly called Sea Scorpions. The order is ...
crabs, barnacles, ostracods)*. Subphylum Chelicerata. Order Eurypterida ( Eurypterids). Class Insecta (Insects). Class Trilobita (Trilobites). Genus Cryptolithus.