anatomical structure morphogenesis tail spike morphogenesis WBbt:0008072 WBbt:0006979 2014-10-23T15:20:15Z jl GO:1990522 The process in which the nematode tail spike is generated and organized. An example of this process is seen in C. elegans, where the tapered tail spike is formed during embryogenesis by a filamentous process that passes posteriorly through hyp10, the tail ventral hypodermis; the filamentous process is formed by a binucleate cell, the tail-spike cell, that subsequently undergoes programmed cell death. biological_process