Barremian palynofloras from the Ashikajima and Kimigahama formations (Choshi Group, Outer Zone of south-west Japan)
Author
Legrand, Julien
Author
Pons, Denise
Author
Nishida, Harufumi
Author
Yamada, Toshihiro
text
Geodiversitas
2011
2011-03-31
33
1
87
135
http://dx.doi.org/10.5252/g2011n1a6
journal article
7707
10.5252/g2011n1a6
31ed99a5-9135-40a2-92a4-64217d9de577
1638-9395
4597011
Botryococcus
sp. cf.
B. braunii
Kützing, 1849
OCCURRENCE. — Ashikajima Fm (rare).
DISTRIBUTION. — This genus is known from the Precambrian.
DESCRIPTION
Algae grouped in small bulb-like colonies, very altered. Colony diameter =
20-25 µm
.
BOTANICAL AFFINITIES
Chlorococcales,
Botryococcaceae
. Freshwater green algae.