Submission + - Miocenic subcellular structure preserved in new Australian Lagerstätte foss
BoogieChile writes: Details of an important new fossil site has just been published in the first Science Advances journal for the new year. McGraths Flat, in New South Wales, Australia, was once the location of this oxbow lake in a mesic rainforest. Today, superb examples of fossilised animals and plants from the Miocene epoch have been recovered, showing incredible detail, including melanosomes preserved in feathers of birds and the eyes of fossilised fish
“The discovery of melanosomes – subcellular organelles that store the melanin pigment – allows us to reconstruct the colour pattern of birds and fishes that once lived at McGraths Flat. Interestingly, the colour itself is not preserved, but by comparing the size, shape and stacking pattern of the melanosomes in our fossils with melanosomes in extant specimens, we can often reconstruct colour and/or colour patterns.
“The discovery of melanosomes – subcellular organelles that store the melanin pigment – allows us to reconstruct the colour pattern of birds and fishes that once lived at McGraths Flat. Interestingly, the colour itself is not preserved, but by comparing the size, shape and stacking pattern of the melanosomes in our fossils with melanosomes in extant specimens, we can often reconstruct colour and/or colour patterns.
