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Modern Dinocyst Key
transparent cysts
brown cysts
species list
Cyst of Gymnodinium microreticulatum
Cyst of Gymnodinium nolleri
Cyst of Gymnodinium catenatum
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Modern Dinocyst Key
brown cysts
round brown with septa, reticulation, double wall
reticulate cysts
reticulate cysts
Zonneveld, K.A.F. and Pospelova V. (2015). A determination key for modern dinoflagellate cysts. Palynology 39 (3), 387- 409.
large cyst > 36 μm
archeopyle split along cingulum
more than 4 paravesicle rows in cingulum
cyst of
Gymnodinium catenatum
+
small cyst 17 - 28 μm
split archeopyle in apical position
less than 4 paravesicle rows in cingulum
cyst of
Gymnodinium microreticulatum
+
intermediate cyst 28 - 38 μm
archeopyle split along cingulum
less than 4 paravesicle rows in cingulum
cyst of
Gymnodinium nolleri
+
pale-brown elogate cyst
pale brown elongate cyst
sulcus and cingulum reflected
chasmic archeopyle
cyst of
Gymnodinium trapeziforme
+