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Durotrigia daveyi gen. et sp. nov., an Early Bajocian dinocyst with a variable precingular archeopyle
| Bailey, D.A. | |
| 1987 | |
| Journal of Micropalaeontology vol.6 pp.89-96 pl.2Journal of Micropalaeontology vol.6 pp.89-96 pl. | |
| Durotrigia daveyi gen. et sp. nov., an Early Bajocian dinocyst with a variable precingular archeopyle |
Bailey, D.A., 1987; Durotrigia daveyi gen. et sp. nov., an Early Bajocian dinocyst with a variable precingular archeopyle. Journal of Micropalaeontology vol.6 pp.89-96 pl.2 ABSTRACT-Durofrigia daveyi gen. et sp. nov. is described from the Inferior Oolite (Early Bajocian) of Dorset, England. It is the earliest distinctly tabulated gonyaulacacean dinocyst with a precingular archaeopyle. The archaeopyle is apparently variable, involving the loss of between 1 and 5 precingular plates. This variability poses some interesting taxonomic problems, particularly the implications to the value of the archaeopyle type as a high-level classification criterion. Some possible causes of archaeopyle variability are discussed.