Early Ordovician
Evidence of earliest plant spores
Evidence of earliest plant spores
The Early Ordovician (485-470 Ma) is a time period that occurs after the Furongian (Cambian), and before the Dapingian (Middle Ordovician).
Geologic Age
Geologic Age
485.4–470.0 Ma
Subdivisions
Subdivisions
Floian: 477.7±1.4–470.0±1.4 Ma
Tremadocian: 485.4±1.9–477.7±1.4 Ma
Eon / Era / Period / Epoch
Eon / Era / Period / Epoch
What happened during this time?
What happened during this time?
Earliest confirmed plant micro-fossils (Gray et al., 1982; Rubenstein et al., 2010; Kenrick et al., 2012; Vecoli et al., 2017)
Evidence of bryophyte-like spores around 476 Ma (Shaw and Renzaglia 2004)
The presence of permanent cryptospores may indicate evidence that eophytes were on the landscape (Edwards et al. 2021)