Two new Trilete spore genera from the Permian of India
DOI:
https://doi.org/10.54991/jop.1964.707Abstract
Trilete spores associated with regular folds along the trilete rays with restricted distal ornamentation or possessing differential ornamentational pattern on two faces have been reported by Balme & Hennel1y (1956) from Australia, Bharadwaj (1962) and others from India.
The present paper deals with two new genera viz. Didecitriletes and Lacinitriletes recovered from the carbonaceous shale from the Upper Barakar Stage (Permian) at Badam, North Karanpura coalfield, Bihar. Both the genera are characterized by triangular to sub-triangular shape in polar view, trilete rays associated with folds and possessing differential ornamentation on proximal and distal sides. They have been separated from each other on the nature of sculptural elements of exine and included in a new subinfraturma Varitrileti along with Microfoveolatispora Bharadwaj and Microbaculispora Bharadwaj. Presently the group of spores included under this group seems to be restricted only to the Lower Gondwana sediments.
Downloads
Metrics
References
BALME, B. E. & HENNELLY, J. P. (1956). Trilete sporomorphs from Australian Permian sediments. Austra. J. Bot. 35: 240-260.
Idem (1962). The miospore genera in the coals of Raniganj Stage (Upper Permian), India. The Palaeobotanist 9 (1 & 2): 68-106. https://doi.org/10.54991/jop.1960.600
JANSONIUS, JAN. (1962). Palynology of Permian and Triassic sediments, Peace River area, Western Canada. Palaeontographica 110B: 35-98.
LESCHIK, GEORGE (1955). Die Keuperflora von Neuewelt bei Basel. II. Die iso-und mikrosporen. Schweir. Palaeont. Abh. 72: 1-70.
Idem (1956). Sporen aus dem Salton des Zechsteins von Neuhof (bei Fulda). Palaeontographica 100B: 125-141.
Idem (1959). Sporen aus den “Karrusandsteinen” von Norronaub (Sudwest Afrika). Senck. Leth. 40: 51-95.
LUBER, A. A. (1937). Methods of correlating coal seams of the Palaeozoic basin according to spores (in Russian with English Summary). International Geol. Congress; Trudy, 17th Session.
POTONIE, ROBERT (1956). Synopsis der Gattungen der Sporae Dispersae. Pt. 1. Beih. Geol. Jb. 23: 1-103.
Idem (1958). Synopsis der Gattungen der Sporae Dispersae. Pt. 2. Ibid. 31: 1-114.
POTONIE, ROBERT & KREMP, GERHARD (1954). Die Gattungen der Palaeozoischen Sporae Dispersae und ihre Stratigraphie. Geol. Jb. 69: 111-193.
Idem (1955). Die Sporae Dispersae des Ruhrkarbons ihre morphographie und stratigraphie mit ausblicken auf arten anderer gebiete und zeit abschnitte. Pt. 1. Palaeontographica. 98B: 1-136.
Idem (1956). Die Sporae Dispersae des Ruhrkarbons ihre morphographie und stratigraphie mit ausblicken auf arten anderer gebiete und zeitabschnitte. Pt. 2. Palaeontographica. 100B: 85-121.
VENKATACHALA, B. S. & BHARDWAJ, D. C. (1964). Sporological study of the coals from Falkenberg (Faulquemont) colliery, Lothringen (Lorrain), France. The Palaeobotanist 11 (1): 159-207 (1963). https://doi.org/10.54991/jop.1962.637
WILSON, L. R. (1962). Permian plant microfossils from the flowerpot formation. Green Country, Oklahoma. Oka. Geol. Surv. Circ. 49: 1-50.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.