Plate 1
All specimens are of Acrosphaera australis, n. sp., from Sample 113-689B-3H-6, 56-58 cm. Scale bar = 100 µm. 1, 2 - Holotype (1) Focus showing shell shape and wall thickness. (2) Surface of shell showing pores and bridges. England Finder position W44. 3, 4 - Paratypes. (3) F37.4; (4) - YZ40-41. 5, 6. Early morphotype showing thin bridges. Y41.2. |