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Zoological Journal of the Linnean Society 149 (4)
According to an article in the newest _Zoological Journal of the
Linnean Society_, the clade hitherto known as Compsognathidae will
henceforth be known as... Compsognathidae.
Gishlick, A. D., & J. A. Gauthier. 2007. On the manual morphology of
_Compsognathus longipes_ and its bearing on the diagnosis of
Compsognathidae. Zoological Journal of the Linnean Society 149 (4):
"Compsognathus longipes sits at an important point in theropod
evolution at the base of Coelurosauria. Despite its relative
completeness and oft-cited morphology, however, the manual morphology
has been unclear. This work provides the first detailed study of the
morphology of the manus of Compsognathus longipes. It shows that
Compsognathus longipes had two fully formed functional digits as well
as a reduced, perhaps even non-functional, third digit. That
conclusion runs counter to the usual interpretation that
Compsognathus longipes had only two phalanges, rather than the
expected complement of three, in digit II. This work also identifies
a unique suite of metacarpal I morphologies that are used to diagnose
a subclade among species often referred to as ?Compsognathidae?.
These features are used to construct an apomorphy-based definition of
a new clade name: Compsognathidae."
Gishlick & Gaulthier's Compsognathidae includes only _Compsognathus_
and _Sinosauropteryx_. The paper only looks at the morphology of the
hands, and doesn't include a full cladistic analysis.
Also notable in the same issue:
Larsson, H. C. E., & H.-D. Sues. 2007. Cranial osteology and
phylogenetic relationships of _Hamadasuchus rebouli_
(Crocodyliformes: Mesoeucrocodylia) from the Cretaceous of Morocco.
Zoological Journal of the Linnean Society 149 (4): 533-567.
"This paper presents a detailed description of the skull and part of
the mandible of the crocodyliform reptile Hamadasuchus rebouli from
the Kem Kem beds (Upper Cretaceous: Albian?Cenomanian) of
south-eastern Morocco. This taxon of deep-snouted ziphodont
crocodyliform can be diagnosed by a number of autapomorphies.
Phylogenetic analysis of a diverse array of crocodylomorph taxa found
strong support for a clade comprising H. rebouli, Peirosauridae, and
Sebecus. The name Sebecia nom. nov. is proposed for this grouping,
which is diagnosed by numerous characters, including the
participation of the quadratojugal in the mandibular condyle. The
distribution of this diverse and long-lived clade lends further
support to the biogeographical hypothesis that faunal connections
existed between Africa and South America well into mid-Cretaceous