Oldest known trackways produced by bilaterian animals with paired appendages

[ImADinosaurRARR]

Open access paper: http://advances.sciencemag.org/content/4/6/eaao6691.full



The image above shows trackways from the Ediacaran. The animal that made these appears to have 4 to 5 pairs of legs and a 1.38 cm width. These tracks are 551 to 541 million years old, so were right before the Cambrian explosion.

TW1 appears to enter UB1 and TW2 also appears to enter UB3, with TW2 walking over another burrow, showing that these tracks were on the surface and not somehow underground.

Probably doesn't interest most of you, but I'm been in an Ediacaran mood lately and it's great to have something vaigely recognizable from that period. 

[ceratopsian]

........

Probably doesn't interest most of you, but I'm been in an Ediacaran mood lately and it's great to have something vaigely recognizable from that period.

Thanks for posting this.  It's a really exciting find I think.  I'll be reading the paper on the tube to work this morning.

[Joe the Spinosaurus]

I haven't even heard of this! I think people should be celebrating this find more.

[Neosodon]

Precambrian fossils are always rare and exiting.