pretelson
nounEtymology From pre- + telson.
1
The tergite just in front of the telson
- 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.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: