Graptolites are widely recognized in the paleontological literature as having been pelagic or macroplanktonic organisms drifting in the water column.
Evidence for · 2
A mixed isograptid-didymograptid graptolite assemblage from the Middle Ordovician of west Gondwana (NW Bolivia): Implications for graptolite paleoecology
2008 · cited by 19
This study discusses graptolite paleoecology, specifically noting that certain taxa inhabited the epipalagic or epipelagic realm.
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Graptolite community responses to global climate change and the Late Ordovician mass extinction.
2016 · cited by 8
This study analyzes macroplanktonic graptolite faunas and their responses to oceanic water masses and climate change.