File:20210105 Ciurcopterus Ventricosus.png
References 参考文献:
- Kjellesvig-Waering, Erik N. (1948-07). Two New Eurypterids from the Silurian of Indiana. Journal of Paleontology 22 (4): 465–472.
- Tergites.
- 背板。
- Selden PA. (1984-01). Autecology of Silurian eurypterids. Spec. Pap. Palaeontol. 32, 39–54.
- Chelicerae (segmentation).
- 鋏角(分節)。
- Tetlie, O. Erik; Briggs, Derek E. G. (2009-09-15). The origin of pterygotid eurypterids (Chelicerata: Eurypterida). Palaeontology 52 (5): 1141–1148. doi:10.1111/j.1475-4983.2009.00907.x
- Overall reconstruction.
- 全体的復元。
- Bicknell, Russell D. C.; Kenny, Katrina; Plotnick, Roy E. (2023-11-20). Ex vivo three-dimensional reconstruction of Acutiramus : a giant pterygotid sea scorpion (American Museum novitates, no. 4004). ISSN 0003-0082.
- Position of chelicerae and appendage II-V.
- 鋏角と第2-5付属肢の位置。