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Table 8 Pentecopterus decorahensis mesosoma tergite measurements

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

Specimen 1 2 3 4 5 6
SUI 139931 50/123 60/88a
SUI 139932 70/85
SUI 139943 16/44a 15/40a 18/40a
SUI 139947 14/22a 22/41a 25/71a 26/43a
SUI 139950 70/106a
SUI 139954 19a/30a 16a/29a
SUI 139980 51a/100a
SUI 140005 69a/47a
SUI 140006 55a/68a 43a/65a
SUI 140015 104/140a
SUI 140017 33/54 44/54
  1. Length/width. All measurements in millimetres. Isolated tergites were assigned to a segment based on size and differences in ornamentation
  2. aindicates an incomplete measurement