A new dinoflagellate cyst from the Upper Bathonian (Middle Jurassic) strata of the Russian Platform

Riding, James B.; Ilyina, Vera I.

doi:https://doi.org/10.1144/jm.17.1.86

Articles | Volume 17, issue 1

https://doi.org/10.1144/jm.17.1.86

© Author(s) 1998. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.1144/jm.17.1.86

© Author(s) 1998. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 17, issue 1

01 Apr 1998

| 01 Apr 1998

A new dinoflagellate cyst from the Upper Bathonian (Middle Jurassic) strata of the Russian Platform

James B. Riding and Vera I. Ilyina

Abstract. Protobatioladinium? elongatum sp. nov. is a distinctive, large, longitudinally elongate Upper Bathonian (Middle Jurassic) dinoflagellate cyst recorded from western Russia. This species is questionably attributed to Protobatioladinium because the archaeopyle type does not precisely conform to that of the genotype. This form is present, often abundantly, throughout the Upper Bathonian sediments of the central and northern Russian Platform and appears to be a reliable marker species.