BMC Ecology and Evolution

Table 5 Pentecopterus decorahensis prosomal appendage IV measurements

From: The oldest described eurypterid: a giant Middle Ordovician (Darriwilian) megalograptid from the Winneshiek Lagerstätte of Iowa

Specimen	Appendage IV
SUI 139926	(podomeres 5–8): 5, 11/11. 6, 10/10. 7, 10/8. 8, 21/5.
SUI 139927	(podomere 8): 8, 21/5.
SUI 139928	(podomere 4): 4, 12^a/10.
SUI 139937	(podomere 3): 3, 13/6.
SUI 139938	(podomere 3): 3, 16/7.
SUI 139940	(podomeres 6–8): 6, 7^a/7^a. 7, 12/10. 8, 13^a/4.
SUI 139946	(podomeres 1–2): Coxa, 43/18^a. 2, 22^a/17^a.
SUI 139959	(podomere 1): Coxa, 14^a/13.
SUI 139963	(podomeres 3–8): 3, 5/5. 4, 4/5. 5, 5/4. 6, 4/3. 7, 2/2. 8, 4/2.
SUI 139965	(podomeres 5–8): 5, 5/4. 6, 4/3. 7, 5/2. 8, 3/2.
SUI 139979	(podomeres 1–3): Coxa, 28/17. 2, 13/15. 3, 8^a/12.
SUI 140000	(podomeres 2–3): 2, 30^a/21. 3, 25^a/20.
SUI 140012	(podomeres 6–8): 6, 4^a/7^a. 7, 9/9. 8, 12^a/6.

Length/width. All measurements in millimetres. Podomere identity indicated in bold
^aindicates an incomplete measurement

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ISSN: 2730-7182

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