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| Author | : | WHITNEY 1952 |
| Current genus | : | Toucasia |
| Type(s) | : | University of Texas, Department of Geology (Austin, Texas) - "Glen Rose Formation", Albian lower, Dawson County: Hancock, bluff on Guadelupe River, 4 miles bel. Hancock (Texas, USA) |
| 1952 | Toucasia hancockensis Whitney, n. sp. -- WHITNEY , p. 698, pl.86, figs.1-3 | |
| 1977 | T. hancockensis Whitney -- COOGAN , p. 37 | |
| ? | 1977 | Toucasia sp., cf. T. hancockensis Whitney -- COOGAN , pl.1, figs.2-3,7 |
| 1986 | T. hancockensis Whitney -- ALENC+STER & PANTOJA ALOR , p. 35 | |
| 1988 | T. hancockensis -- JOHNSON et al. , p. 1:9 | |
| 1989 | Toucasia hancockensis Whitney -- HARTSHORNE , p. 328 | |
| ? | 1990 | Toucasia sp. cf. T. hancockensis Whitney -- SCOTT , text-fig.11a |
| 1990 | Toucasia hancockensis Whitney -- SCOTT , pp. 60-61 |