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Fig. 11 | BMC Evolutionary Biology

Fig. 11

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

Fig. 11

Pentecopterus decorahensis, prosomal appendage V. a SUI 140014, podomeres 4–7. b SUI 139986, podomeres 6–9. c SUI 139989, podomeres 3–4. d SUI 139942, podomeres 1–5. e SUI 139913, coxa and podomeres 6–9 showing distal denticulation of podomeres. f SUI 139970, complete appendage. g SUI 139924, coxa. h SUI 139985, podomeres 4–6. i SUI 139912, appendage termination. j SUI 139991, podomeres 4–5. k SUI 139996, podomeres 4–5. l SUI 139968, podomeres 6–9. V-1–V-9 = podomeres 1–9, DD = distal denticulations, FS = fixed spine. Scale bars = 10 mm

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