English: Size of Jaekelopterus, a giant pterygotid eurypterid. The chelicerae and pretelsons are based on material of their respective species, the telson in both is based on that of J. howelli, and parts of the opisthosoma are based on J. rhenaniae. The remainder of the opisthosoma is based on the related Acutiramus and Pterygotus, the prosoma is based on Acutiramus, and the limbs (excluding chelicerae) are based on Pterygotus. The human silhouette is from File:Silhouette of man standing and facing forward.svg (CC0).

References

• Braddy, S.J.; Poschmann, M.; Tetlie, O.E. (2008). "Giant claw reveals the largest ever arthropod". Biology Letters 4 (1): 106-109. DOI:10.1098/rsbl.2007.0491. PMID 18029297.
• Lamsdell, J.C.; Selden, P.A. (2013). "Babes in the wood--a unique window into sea scorpion ontogeny". BMC Evolutionary Biology 13: 98. DOI:10.1186/1471-2148-13-98. PMID 23663507.
• Photograph of a J. rhenaniae specimen
• Another photograph of a J. rhenaniae specimen
• Poschmann, M.; Brauckmann, C.; Tetlie, O.E. (2006). "On the Emsian (Lower Devonian) arthropods of the Rhenish Slate Mountains: 5. Rare and poorly known eurypterids from Willwerath, Germany". Paläontologische Zeitschrift 80 (4): 325-343.
• Lamsdell, James C.; Braddy, Simon J. (2010). "Cope's Rule and Romer's theory: Patterns of diversity and gigantism in eurypterids and Palaeozoic vertebrates". Biology Letters 6: 265–269. DOI:10.1098/rsbl.2009.0700.
• Bicknell, R.D.; Kenny, K.; Plotnick, R.E. (2023). "Ex vivo three-dimensional reconstruction of Acutiramus: A giant pterygotid sea scorpion". American Museum Novitates 2023 (4004): 1-20.
• Clarke, J. M. (1912) The Eurypterida of New York, University of California Libraries ISBN: 978-1125460221.
• Woodward, Henry (1865) A Monograph of the British Fossil Crustacea, Belonging to the Order Merostomata, London: The Palæontographical Society
• Miller, R. F. (2007). "Pterygotus anglicus Agassiz (Chelicerata: Eurypterida) from Atholville, Lower Devonian Campbellton Formation, New Brunswick, Canada". Palaeontology 50: 981-999. DOI:10.1111/j.1475-4983.2007.00683.x.