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Finished projects of the Ulm Team on 'Orsten' fossils

–> for older projects see here

Crustaceans all transferred to our Research Archive, which contains all information of 2008 and older

Nemathelminth fossils – see list of references

a) Study of loricate larvae from the Middle Cambrian of Australia – published 12/2009

Our material from the Middle Cambrian of Australia contains also several loricae of an at first site putative priapulid nemathelminth. The loricae are about 500-700 µm long and are made of 20 long plates in a specific shape and arrangement to enable the animal to intrude and extrude the – not preserved – front (introvert). The fossil matches exactly the lorica of the larva of the extant priapulid Tubiluchus. BUT: In the meantime, however, we had to learn that these larvae have also some aspects in common with the Loricifera, the putative sister taxon of Priapulida. So things have become more complicated and also more exciting. The ms has been published in the second volume in honour of the late Dr. John Shergold published by AAAP just at Christmas Eve.

b) Description of a new species of Markuelia from Australia – published 12/2009

The Australian material also contained two specimens of a new Markuelia species. The description also appeared in the second volume in honour of the late Dr. John Shergold.

c) Shergoldana, a larval nemathelminth – published 2008

A single specimen of a 145 µm long cycloneuralian has been published by the Ulm team in the first AAAP volume in memoriam of the late Dr. John Shergold, formally Canberra, Australia. Actually John had guided our expedition in the outback in 1986 (Dieter Waloszek and Raimond Below). The fossil received, therefore, the name Shergoldana australiensis.

On the right: SEM of our nemathelminth larva and a 3D Blender model created by Joachim.
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