Thanks, Tracy, for alerting us the the paper!
Martill et al. questionably refer the material to Compsognathidae, on the basis of the shape of the pubic boot and its fan-shaped neural spines of the dorsals.
The possible postpubic air sac is an vacuity in the matrix extending from the dorsal aspect of the pubic boot and extends half-way to the ischium. It was partially lined with small calcite crystals. They reject the possibility this structure might represent the mold of a urinary bladder or ovaries, as these would be wholly anterior to the pubis or between the sacrum & the pubis.
Unfortunately the authors do not make direct comparisons to _Santanaraptor_ (which may not have been described when this paper was written).
In the same issue, a paper on the Jurassic time scale:
Palfy, J., P.L. smith & J.K. Mortensen. 2000. A U-Pb and 40Ar/39Ar time scale for the Jurassic. CJES 37: 923-944.
Here are their new stage-boundary dates. Note that the Jurassic as a whole has been shrunk, as has the Late Jurassic relative to the Early & Middle. Dates given are the lower time boundary for each unit:
Berriasian (J-K boundary): 141.8 +2.5 -1.8
Tithonian: 150 +3.4 -2.8
Kimmeridgian: 154.7 +3.8 -3.3
Oxfordian: 156.5 +3.1 -5.1
Callovian: 160.4 +1.1 -0.5
Bathonian: 166.0 +3.8 -5.6
Bajocian: 174.0 +1.2 -7.9
Aalenian: 178.0 +1.0 -1.5
Toarcian: 183.6 +1.7 -1.1
Pliensbachian: 191.5 +1.9 -4.7
Sinemurian: 196.5 +1.7 -5.7
Hettangian (Tr-J boundary): 199.6 +_0.4
Dates in Ma, uncertainty in Myr.
Thomas R. Holtz,