Contributed by Andrew Smith, September 2006
1966 Pyrina hancockensis Whitney & Kellum, p. 260, pl. 2, figs 1-3.
1987 Globator hancockensis Whitney & Kellum; Akers & Akers, p. 72.
2009 Pygopyrina hanckockensis (Whitney & Kellum); Smith & Rader, p. 42, figs 18J-O, 21.
|Distribution||Glen Rose Limestone, Lower Trinity Group, Lower Albian, Lower Cretaceous, Texas, USA.|
|Remarks||Globator incisa Agassiz, in Desor, 1842 has the periproct more marginal and the peristome somewhat smaller. In theis species the periproct remains in contact with the apical disc in juveniles (up to ca 10 mm test length) but in larger individuals up to 2 interambulacral plates come to separate the opening from the apical disc.
Witney, M. I. & Kellum, L. B. 1966. Echinoids of the Glen Rose Limestone of Texas. Papers of the Michegan Academy of Science, Arts and Letters 51, 241-263.
Smith, A. B. & Rader, W. L. 2009. Echinoid diversity, preservation potential and sequence stratigraphical cycles in the Glen Rose Formation (early Albian, Early Cretaceous), Texas, USA. Palaeobiodiversity and Palaeoenvironments 89, 7-52.