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Hystrichosphaeridium speciale
General
Images
Stratigraphy
Description
Literature
Notes
Year
Author
Title
1990
Harker, S.D., Sarjeant, W.A.S. and Caldwell, W.G.E.
Late Cretaceous (Campanian) organic-walled micro- plankton from the interior plains of Canada, Wyo- ming and Texas: biostratigraphy, palaeontology and palaeoenvironmental interpretation.
1981
Lentin, J.K. and Williams, G.L.
Fossil dinoflagellates: index to genera and species, 1981 edition
1895
Merril, J.A.
Fossil sponges of the flint nodules in the Lower Cretacious of Texas
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