New refs #24

[Ralph Chapman <CHAPMAN.RALPH@NMNH.SI.EDU>]

And now for a few more items of interest...

Kielan-Jaworowska, Z. 1998. Humeral torsion in multituberculate mammals.
   Acta Palaeontologica Polonica, 43(1):131-134.

New finds from Mongolia confirm the presence of torsion in the humeri of
multis. Humeri are rare for multis and this new one for a new species of
Kryptobaatar confirm torsion at high levels and this suggests a sprawling
stance in disagreement with Serenoʼs argument for parasagittal posture more 
similar to Didelphis.


Hurum, J.H. 1998. The braincase of two Late Cretaceous asian
   multituburculates studied by serial sections. Acta Palaeontologica
   Polonica, 43(1):21-52.

Studied the braincases of Nemegtbataar gobiensis and Chulsanbataar vulgaris 
from the Mongolian Late Cretaceous. Detailed braincase structure from sectioned 
skulls with detailed cranial description.


Roger, J et al. (9 others). 1998. Paleoenvironmental and biotic changes
   across the  Cretaceous/Tertiary boundary in the Oman Mountains.
   Bull. Society Geol.  France, 1998(2):255-270. [In French].

Detailed description of foram faunas of the Late Cretaceous in the Oman Mtns.  
New sites show a continuous section through the boundary. Various extinctions 
before the boundary with recoveries and there is indeed the iridium layer as 
well. Tectonically a very interesting area.


Coccioni, R. & S. Galeotti. 1998. What happened to small benthic
   foraminifera at  the Cretaceous/Tertiary boundary. 
    Bull. Society Geol.  France, 1998(2):271-279.

Deep-water sections affected less than more shallow ones. After the event, the 
ecosystem seemed to split into shallow-water epifaunal and
deep-water infaunal domains.


Lee, M.S.Y. 1998. Similarity, parsimony and conjectures of homology: the
   chelonian shoulder girdle revisited. J. Evol. Biol., 11:379-387.

Detailed comparison, within the context of homology and phylogeny, of the 
shoulder girdles of turtles as well as captorhinids, procolophonoids and 
pareiasaurs. Part of a developing dialog between Lee and Rieppel.

This one looks interesting...

Arnold, E.N. 1998. Cranial kinesis in lizards. Pp. 323-357. In Hecht, M.K., 
   R.J.MacIntyre & M.T. Clegg, eds. Evolutionary Biology, Volume 30. 
   Plenum, NY.

Very detailed analysis within nice phylogenetic framework. To understand the 
kinesis we see in dinos, itʼs good have another reptilian group experimenting 
with it in detail. Nice.


Berman, D.S., A.C. Henrici & S.S. Sumida. 1998. Taxonomic status of the
   Early Permian Helodectes paridens Cope (Diadectidae) with discussion
   of  occlusion of diadectid marginal dentitions. Annals of the Carnegie
   Museum,  67(2):181-196.

Confirms that taxonʼs position of a diadectid through thorough prep of the
holotype. Discusses occulsal patterns in the form.


Hereʼs a neat one that should lead tomore data on paleoenvironments in
the Mesozoic...

Podlaha, O.G., J. Mutterlose & J. Veizer. 1998. Preservation of δ18O and
   δ13C in belemnite rostra from the Jurassic/Early Cretaceous
   successions.  American Journal of Science, 298:324-347.


And finally for now...

Maisch, M.W. & A. Hungerbuhler. 1997. Revision of Temnodontosaurus
   nuertingensis (v. Huene, 1931), a large ichthyosaur from the Lower
   Pliensbachian (Lower Jurassic) of Nurtingen, south western Germany.
   Stuttgarter Beitrage zur Naturkunde, Ser. B, #248:11 p.

Confirm the validity and taxonomic status of this taxon, based on one
specimen originally named Leptopterygius but now shifted to T.

Thatʼs a wrap for now,

Ralph Chapman