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Table 9 Pentecopterus decorahensis metasoma tergite and telson measurements

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

Specimen

7

8

9

10

11

12

Telson

SUI 139955

32/58

28/55

28/51

40/46

SUI 139956

80/26

SUI 139957

70a/28

SUI 139962

20/82a

SUI 139971

49/34a

SUI 139974

29/29a

SUI 139976

19/61

16/52a

SUI 140002

12a/33a

SUI 140004

28a/41a

  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