Search for crossword answers and clues
Horseshoe crabs and extinct forms
Answer for the clue "Horseshoe crabs and extinct forms ", 9 letters:
xiphosura
Word definitions for xiphosura in dictionaries
Wikipedia
Word definitions in Wikipedia
The Xiphosura are an order of marine chelicerates that includes a large number of extinct lineages and only four extant species in the family Limulidae , which include the horseshoe crabs . The group has hardly changed in millions of years; the modern horseshoe ...
The Collaborative International Dictionary
Word definitions in The Collaborative International Dictionary
Limuloidea \Lim`u*loi"de*a\ (l[i^]m`[-u]*loi"d[-e]*[.a]), n. pl. [NL. See Limulus , and -oid .] (Zo["o]l.) An order of Merostomata, including among living animals the genus Limulus , with various allied fossil genera, mostly of the Carboniferous period. ...