411 REFERENCE · Wiktionary
Middle Cambrian
Reference material by Wiktionary contributors. This retains its source identity and is not 411 news reporting.
English
Proper noun
1 Middle Cambrian
en geology dated An epoch from 513 to 501 million years ago, ending with the first occurrences of Glyptagnostus reticulatus species in the fossil record.
Synonyms
epoch en Saint David's, en Albertan, en Acadian
Translations
epoch
Finnish: fi keskikambrikausi
Polish: pl kambr środkowy m, pl miaoling m
Further reading
Cambrian Series 3
Middle_Cambrian
203565 Glyptagnostus reticulatus