preabdominal

English[edit]

preabdominal (not comparable)

Relating to the preabdomen
- 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^[1], volume 15, →DOI:
  As such, Megalograptus has been considered to represent the plesiomorphic condition within eurypterids for a number of characters, including the occurrence of the opisthosomal preabdominal/postabdominal constriction at the sixth and seventh segment as opposed to the seventh and eighth [ 5 ], the possession of an extra podomere on prosomal appendages II–V [ 72 ], and the morphology of the prosomal ventral plates [ 37 ].