chasmataspidid
English
[edit]Noun
[edit]chasmataspidid (plural chasmataspidids)
- (zoology) Any of the Chasmataspidida, an extinct group of chelicerate arthropods.
- 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, :
- The sixth prosomal appendage is modified in both xiphosurids and chasmataspidids for use in locomotion or burrowing.