Kamaena gigantea

Name

Kamaena gigantea

Rank

Species

Generic Name

[Genus] Kamaena

Authors (Pub.)

Sukhov O. A.  

Publication

A new species of palaeosiphonocladal algae Kamaena gigantea from the Lower–lowermost Middle Mississippian sediments of the Donbas (Upper Tournaisian–Lower Visean) [2021/12]

Journal

Journal of Geology, Geography and Geoecology

Volume

30

Issue

4

Page number

759

Year

2021

Fossil Status

thallus (calcareous)

Stratigraphy

Tournaisian

Strat. comment

Dokuchaevskian horizon

Location

borehole 74, dth. 231−233.7 m, near village Rodnikove, Starobeshiv district, Donets'k region, Ukraine

Paleoregion

Laurussia (Baltica)

Data for Holotypus

Repository

Institute of geological sciences, National Academy of Sciences of Ukraine, Kyiv, Ukraine

Repository Number

sample 98

Num

1: 3

Pub.

A new species of palaeosiphonocladal algae Kamaena gigantea from the Lower–lowermost Middle Mississippian sediments of the Donbas (Upper Tournaisian–Lower Visean) [2021/12]

Diagnosis

The thallus is large, tubular, curved, its shape varies from subcylindrical, subconical and subrectangular depending on the cross section. Its wall is quite thick, uneven, “porous”, sometimes with protuberances, mostly on the outside, and has irregular “pores”. “Pores” are mostly straight, not branched and not all specimens have them. Pores are located perpendicular to the wall. Partitions are infrequent, straight or curved to the central part of the thallus. They are placed at approximately the same distance from each other and perpendicularly or at an angle to the wall and have approximately the same thickness. Their inner cavity is wide.