English

Noun

pretelson ‎(plural pretelsons)

1. The tergite just in front of the telson
   • 2015 September 1, James C. Lamsdell et al., “The oldest described eurypterid: a giant Middle Ordovician (Darriwilian) megalograptid from the Winneshiek Lagerstätte of Iowa”, in BMC Evolutionary Biology, volume 15, DOI:10.1186/s12862-015-0443-9:

     The pretelson does not expand laterally and there is no evidence of an attachment point for cercal blades; this, combined with their absence in the material, indicates that such structures were lacking.