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History
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Pterygotus
Pterygotus
Painting painted in 1912 by Charles R. Knight depicting various eurypterids discovered in New York. The painting includes Dolichopterus, Eusarcana, St
Painting painted in 1912 by Charles R. Knight depicting various eurypterids discovered in New York. The painting includes Dolichopterus, Eusarcana, Stylonurus, Eurypterus and Hughmilleria. Pterygotus can be seen in the center-left.
Illustration of fossils of P. anglicus, including three cheliceral claws.
Illustration of fossils of P. anglicus, including three cheliceral claws.
Cheliceral claw of P. barrandei.
Cheliceral claw of P. barrandei.
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Eurypterid
Eurypterid
Illustration of Hibbertopterus, a large stylonurine (lacking swimming paddles) eurypterid
Illustration of Hibbertopterus, a large stylonurine (lacking swimming paddles) eurypterid
The holotype of Palmichnium kosinkiorum, containing the largest eurypterid footprints known
The holotype of Palmichnium kosinkiorum, containing the largest eurypterid footprints known
The supposed "gill tracts" of eurypterids have been compared to the air-breathing pseudotracheae present in the posterior legs of modern isopods, such
The supposed "gill tracts" of eurypterids have been compared to the air-breathing pseudotracheae present in the posterior legs of modern isopods, such as Oniscus (pictured).