graptolite

Noun

Meaning

One of numerous species of slender and delicate fossils, of the genus Graptolites and allied genera, found in the Silurian rocks. They belong to an extinct group (Graptolithina) supposed to be hydroids.

Source: Webster's dictionary

Synonyms

graptolitic acorn worm pterobranch enteropneust enteropneusta pterobranchia pterobranchian acorn worms acorn-worm-like hemichordata enteropneustan graptoliticus graptolitoid pterobranchiate

Close letter words and terms

grapsid grapsoid Graptemys barbouri graptolitic Graptophyllum Graptophyllum pictum