An exceptionally well-preserved Eocene dolichopodid fly eye: function and evolutionary significance

作者：Tanaka Gengo^*; Parker Andrew R; Siveter David J; Maeda Haruyoshi; Furutani Masumi

来源：Proceedings of the Royal Society B, 2009, 276(1659): 1015-1019.

DOI：10.1098/rspb.2008.1467

• Baltic amber
• compound eye
• dolichopodid fly
• optical analysis
• neural superposition compound eye

The exceptionally preserved eyes of an Eocene dolichopodid fly contained in Baltic amber show remarkable detail, including features at micrometre and submicrometre levels. Based on this material, we establish that it is likely that the neural superposition compound eye existed as far back as 45 Ma. The ommatidia have an open rhabdom with a trapezoidal arrangement of seven rhabdomeres. Such a structure is uniquely characteristic of the neural superposition compound eye of present-day flies. Optical analysis reveals that the fossil eyes had a sophisticated and efficient optical system.

• 出版日期2009-3-22