I suggest you to ask Yao-Ming Hu, who is also on researchgate. He wrote a paper about a spalacotheriid from china in 2005:

Hu,Y.-M., Fox, R., Wang, Y.-Q., Li, C.-K. 2005, A New Spalacotheriid Symetrodont from Early Cretacous of Northeastern Cina. American Museum Novitates 3475: 1-20

(DOI: http://dx.doi.org/10.1206/0003-0082(2005)475[0001:ANSSFT]2.0.CO;2)

This paper could also be promising:

CifelliI, R. L., Madsen, S. K. 1999, Spalacotheriid symmetrodonts (Mammalia) from the medial Cretaceous (upper Albian or lower Cenomanian) Mussentuchit local fauna, Cedar Mountain formation, Utah, USA. Geodiversitas 21(2): 167-214

As far as know spalacotheriids are mostly treated as symmetrodonts (but this group is somewhat of a wastebasket taxon).

But if one accepts this they can be treated as descendants of more basical Symetrodonts (Kuehneotheriidae).

In other larger phylogentic studies of mammals

(Averianov, A. O., Lopatin, A. V. 2011, Phylogeny of Triconodonts and Symmetrodonts and the Origin of Extant Mammals. Doklady Biological Sciences 436 (1): 32–35.

Meng, J., Wang, Y., Li, C. 2011, Transitional mammalian middle ear from a new Cretaceous Jehol eutriconodont. Nature 472 (7342): 181–185. doi:10.1038/nature09921. PMID 21490668.)

they emerge as the sister group of Zhangheotheriidae. Together they form the sister-group of Cladotheria within Trechnotheria.

I hope some of my answers can help you along.

many thanks! I found frustrating that there is nothing in the upper Jurassic! the earliest spalacotheriids are from the Purbeck of UK. I will see Hu RG

You may see also a more recent paper:

http://link.springer.com/article/10.1007/s00114-013-1028-3

I would like to ask you for your Naturwissenhaften paper. I cannot have it now.

Thanks in advance!

Attached!

At first glance this paper seems very interesting and promising.

Hu Yaoming died in 2008.

He dead since 2008?

Spooky that found this link in reseachgate:

https://www.researchgate.net/researcher/2002039718_YAO-MING_HU/

there something said about 2009, so whats going on there?

Because of this page I did not recognize hes deceased.

I do not know what is going on there. See the attached file.

Many thanks to both of you Drs. Averianov and Kosch. I appreciate very much your help and comments.