Yet more new references arrived the library, some of them previosly mentioned on the list.
First of all, a large paper by Galton, reported by Tracy last month.
Galton, P. 2000, Are Spondylosoma and Staurikosaurus (Santa Maria Formation, Middle-Upper Triassic, Brasil) the oldest saurischian dinosaurs? Palaontologische Zeitschrift, v.74, n. 3, p. 393-423.
I notice that Spondylosoma is still classified as a possible dinosaur on many websites, such as the Dinosauricon and Dinodata. Galton provides good evidence in a comprehensive description, that the genus is actually a rausuchid.
Spondylosoma is actually from the Therapsid Assemblage Zone of the Santa Maria Formation, which would make it Ladinian (Middle Triassic) in age.
Lectotype- (GPIT 479/30) fourth or fifth cervical vertebra, sixth or seventh cervical vertebra, posterior dorsal vertebra, first sacral vertebra, second sacral vertebra
Paralectotypes- (GPIT 479/30) mid dorsal centrum*, third sacral vertebra*, proximal and distal scapula, proximal humerus, proximal pubis, distal femur
* these are from a specimen smaller than the holotype
(GPIT 479/0253a) tooth
Referred- tooth, first dorsal vertebra
Material incorrectly referred- (GPIT 479/0249) distal caudal vertebra
This was described as an anterior dorsal of Spondylosoma, but is really a distal caudal of an undetermined archosaur.
(GPIT 479/0256a) proximal radius
This was described as a distal radius of Spondylosoma, but is really a proximal radius of an undetermined archosaur.
Spondylosoma lacks the dinosauriform synapomorphy of having the cervical column follow a strong sigmoid curve, as the central faces are only slightly offset. It does have an elongate pubis like Pseudolagosuchus and dinosaurs, but so do poposaurids and chatterjeeids. It lacks the cervical epipophyses and distally projected deltopectoral crest of dinosaurs, but does have more than two sacrals. Galton writes much regarding sacral number in dinosaurs and concludes only two sacrals were present in dinosaurs primitively. Some specimens of Sellosaurus have two sacrals, while others have three. Some prosauropods have a third sacral originating from the last dorsal, others from the first caudal. It's all very complex, but in any case rausuchids, poposaurids, ornithosuchids and chaterjeeids have three sacrals as well. Finally, Spondylosoma has hyposphene-hypantrum articulations like saurischians, but these are also found in rausuchids and prestosuchids. Galton concludes Spondylosoma is a rausuchian and probably a rausuchid, based on sacral vertebral characters not seen in poposaurids.
Now get it off your lists people ;-)
On a related note, Peter Buchholz pointed out to me that the tooth of "Beelemodon" (http://www.cmnh.org/fun/dinosaur-archive/2001Feb/msg00005.html) has a wear facet. I believe that such a structure would only be expected if there were teeth in the other jaw wearing against it. As ornithischians have toothless predentaries opposing their premaxillary teeth, this might be final proof "Beelemodon" is a theropod and not an ornithischian. Therefore, I suggest with more confindence that "Beelemodon" be placed as Coelurosauria indet.
A paper I haven't seen mentioned on the list-
Lopez-Martinez, Canudo, Ardevol, Suberbiola, Orue-Etxebarria, Cuenca-Bescos, Ruiz-Omenaca, Murelaga and Feist, 2001. New dinosaur sitescorrelated with Upper Maastrichtian pelagic deposits in the Spanish Pyrenees: Implications for the dinosaur extinction pattern in Europe. Cretaceous Research, 22(1) 41-62.
Several dinosaurs have been found in the Late Maastrichtian Lower Tremp Formation of Spain.
Teeth with larger posterior than anterior serrations (3 per mm vs. 5 per mm) and inclined distal serrations. (ex. MPZ 98/72)
Teeth with only distal serrations, which are not inclined (6-16 per mm).
- Euronychodon sp.
Recurved teeth lacking serrations, but having a lingual vertical crest. (ex. MPZ 98/76, 98/77)
- Coelurosauria indet.
Teeth similar to Euronychodon sp., but lacking the vertical crest. (ex. MPZ 98/82)
- Sauropoda indet.
Single tooth found with eggshells.
- Euhadrosauria incertae sedis
(BLA-99) partial maxilla, jugal, dentary, surangular, teeth
There is no surangular foramen, like hadrosaurs except Protohadros. Features more derived than Telmatosaurus include- coronoid process inclined rostrally, single median carina on dentary teeth, complete absence of secondary ridges on crowns. Other characters differing from Telmatosaurus are- jugal is shorter and more expanded rostrally, narrower dentary teeth not recurved distally. The shallow caudal jugal process with scalloped ventral margin resembles brachylophosaurs, while the flat dorsoventrally expanded rostral jugal process and high postorbital jugal process resemble lambeosaurines, especially Hypacrosaurus. The less prominent mandibular diastema distinguishes it from Pararhabdodon.
- Euhadrosauria indet.
(~6 m) cervicals, dorsals, dorsal ribs, caudals, chevrons, humerus, proximal ulna, femur (730 mm), distal tibia, metatarsal III, phalanx
The caudals have tall, caudally angled neural spines like Pararhabdodon, but unlike Telmatosaurus, while the humerus is hadrosaurine-like.