We found 2 dictionaries that define the word archaeocyathids:

General (1 matching dictionary)

1. archaeocyathids: Wiktionary

Science (1 matching dictionary)

2. On-Line Biology Book: GLOSSARY (No longer online)

▸ Words similar to archaeocyathids ▸ Usage examples for archaeocyathids ▸ Idioms related to archaeocyathids ▸ Wikipedia articles (New!) ▸ Words that often appear near archaeocyathids ▸ Rhymes of archaeocyathids ▸ Invented words related to archaeocyathids