Hystrichosphaerid type 2
- Citations total:
- 2
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| original | Cenomanian | Coniacian | Wyoming | Upshaw,C.F. Palynology of the Frontier Formation, northwestern Wind River Basin, Wyoming. | 1959 |
| original | Neocomian | Aptian | India(Gujarat) | Venkatachala,B.S. Palynology of the Umia Plant Beds of Kutch, West India. 2. Bhuj exposures near Walkamata, Kutch District, Gujarat State-Sysematic palynology. | 1968 |