English dictionary
scolithus
Definitions, examples, synonyms and antonyms from WordNet 3.0.
noun
-
A tubular structure found in Potsdam sandstone, and believed to be the fossil burrow of a marine worm.
Source: webster1913
English dictionary
Definitions, examples, synonyms and antonyms from WordNet 3.0.
A tubular structure found in Potsdam sandstone, and believed to be the fossil burrow of a marine worm.
Source: webster1913