THE EVOLUTIONARY SIGNIFICANCE OF SCALE-LIKE SPINES ON THE AUSTRALIAN AND SW PACIFIC CAINOZOIC-OSTRACODS PONTICOCYTHEREIS-MANIS WHATLEY AND TITTERTON, 1981 AND TRACHYLEBERIS-FLORIDUS SP-NOV
Mt. Warne et Rc. Whatley, THE EVOLUTIONARY SIGNIFICANCE OF SCALE-LIKE SPINES ON THE AUSTRALIAN AND SW PACIFIC CAINOZOIC-OSTRACODS PONTICOCYTHEREIS-MANIS WHATLEY AND TITTERTON, 1981 AND TRACHYLEBERIS-FLORIDUS SP-NOV, Journal of micropalaeontology, 15, 1996, pp. 161-168
Ponticocythereis species are a discrete phylogenetic group within the
Trachyleberididae that evolved in the SW Pacific and Australasian regi
ons during the Tertiary. The presence of similar scale-like spines on
the unrelated species Ponticocythereis manis Whatley & Titterton, 1981
and Trachyleberis floridus sp. nov. is presented as an example of con
vergent evolution.