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Homotryblium meghalayense
From Fensome et al., 2019:
Homotryblium meghalayense Saxena and Rao, 1984, p.57, pl.2, figs.21–23. Holotype: Saxena and Rao, 1984, pl.2, fig.23. Age: Early Miocene.
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Original description: [Saxena and Rao, 1984]:
Homotryblium meghalayaensis n. sp.
(Pl. Il - 21-23)
Holotype: PI. II23, size 62 X65 um, slide no 8374
Number. of specimens studied : 15
Diagnosis : Cysts chorate, body subspherical to spherical in shape. Endophragm and periphragam appressed between the processes. Both walls smooth to faitly granulose. Parasutural features not indicated. Processes intratabular, tubular, hollow, distaly [sic] open and secate. Paratabulation not clearly seen. Archaeopyle combination type, formed by the removal of apical and precingular plates. Paracingulum and parasulcus not indicated.
Dimensions : Size of cyst body 57-75 x 55-67 μm.
Length of the processes 14-28 μm.
Comparison : Homotryblium tenuisbinosum Davey & Williams in Davey et al. (1966) can be differentiated from the present species in having outer strongly granular periphragm and stmaller diameter of the central body (48 x 41 μm). H. pallidum Davey & Williams in Davey et al. (1966) is distinct by possessing granular periphragm and the processes of variable width forming a circle where they arise from the central body. H. floripes Deflandre & Cookson, 1955) Stover, (1975) differs in possessing striate and fibrous processes; the striations being formed by three or four nerve-like delicate thicknings which extend from the distal terminations to the basal areas. H. tasmaniense Cookson & Eisenack (1967) can be distinguished by its granular to spinulose body with radially arranged tubular and distally op distally open appendages.
Type locality : 160.5 km-stone, Sonapur-Badarpur
Road Section, Meghalaya.
Type horizon : Dona Member, Bhuban Formation,
Surma Group, Lower Miocene.
Homotryblium meghalayense Saxena and Rao, 1984, p.57, pl.2, figs.21–23. Holotype: Saxena and Rao, 1984, pl.2, fig.23. Age: Early Miocene.
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Original description: [Saxena and Rao, 1984]:
Homotryblium meghalayaensis n. sp.
(Pl. Il - 21-23)
Holotype: PI. II23, size 62 X65 um, slide no 8374
Number. of specimens studied : 15
Diagnosis : Cysts chorate, body subspherical to spherical in shape. Endophragm and periphragam appressed between the processes. Both walls smooth to faitly granulose. Parasutural features not indicated. Processes intratabular, tubular, hollow, distaly [sic] open and secate. Paratabulation not clearly seen. Archaeopyle combination type, formed by the removal of apical and precingular plates. Paracingulum and parasulcus not indicated.
Dimensions : Size of cyst body 57-75 x 55-67 μm.
Length of the processes 14-28 μm.
Comparison : Homotryblium tenuisbinosum Davey & Williams in Davey et al. (1966) can be differentiated from the present species in having outer strongly granular periphragm and stmaller diameter of the central body (48 x 41 μm). H. pallidum Davey & Williams in Davey et al. (1966) is distinct by possessing granular periphragm and the processes of variable width forming a circle where they arise from the central body. H. floripes Deflandre & Cookson, 1955) Stover, (1975) differs in possessing striate and fibrous processes; the striations being formed by three or four nerve-like delicate thicknings which extend from the distal terminations to the basal areas. H. tasmaniense Cookson & Eisenack (1967) can be distinguished by its granular to spinulose body with radially arranged tubular and distally op distally open appendages.
Type locality : 160.5 km-stone, Sonapur-Badarpur
Road Section, Meghalaya.
Type horizon : Dona Member, Bhuban Formation,
Surma Group, Lower Miocene.