From Fensome et al., 2019:
Pterodinium tuberculatum KKhowaja-Ateequzzaman and Jain, 1992, p.172,174, pl.8, fig.5. Holotype: Khowaja-Ateequzzaman and Jain, 1992, pl.8, fig.5. Age: Hauterivian–Barremian.

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Original description (Khowaja-Ateequzzaman and Jain, 1992):

Pterodinium tuberculatum sp. nov.
Pl. 8, fig. 5

Holotype - Pl. 8. fiq. 5: slide no. BSIP 10150.
Stratum & type locality - 441.2 - 444.2 m, bgl. (Conventional core). Puduvoyal bore-hole, Palar Basin. Tamil Nadu. southem India.

Diagnosis - Cyst ovoidal to ellipsoidal in shape, autophragm ornamented with tubercles, parasutures bear membranous crests with short spines on distal magins, paratabulation gonyaulacacean, exact fomula not discernible, archaeopyle precingular. Type P(3" only), operculum free.

Description
Shape - Cyst ovoidal to ellipsoidal.
Wall relationship - Autophragm only.
Wall features - Autophragm thick, ornamented with closely placed tubercles, parasutures bear crests which is membranous with short spines at distal margin.
Paratabulation - Gonyaulacacean, exact formula could not be ascertained, the only source being parasutural crests is broken at places making it difficult to deduce the exact formula.
Archaeopyle - Precingular, Type P(3" only), operculum free..

Dimensions
Size of body:
Holotype - 58 X 40 μm
Range - 55-60 X 35-40 μm
Height of crest:
Holotype - 6 μm
Range - 6 - 8 μm

Comparison - Pterodinium tuberculatum sp. nov. resembles P. aliferum Eisenack 1958 and P. premnos Duxbury 1980 in overall shape but differs in that spines on the crest margin and tuberculate autophragm.