Bruno Camilo Silva

The site of Cambelas is located in the Portuguese Mesocenozoic Littoral, near Torres Vedras, and 37km to the northwest of Lisbon. It is mainly constituted by paleo-channels of sandstones, silts, conglomerates and paleosoils levels, punctuated by some intercalations of marls, what reveals a deltaic continental environment (upper delta-plain) with marine and brackish incursions. These deposits belong to the Freixial Formation, Upper Jurassic (Tithonian) in age (Dantas, 2003).
This site was discovered at 2001 and excavated at 2002 and 2003. The fossil site has yielded remains of plants, invertebrates, crocodylomorphs and theropod dinosaurs (Dantas, 2003). Among them, there are abundant bones (cranial, and from the axial and apendicular skeleton) of a carcass attributed to Allosaurus (Malafaia et al, 2007). On the bones of the individual it is possible to identify a great number of marks that are interpreted as the result of activities from different organisms in a subaerial context (tooth marks, trampling, and abundant marks that can be attributed to insect activities). The morphology and the patterns of the Cambelas insects marks are similar to some previously assigned to necrophagous
termites (Fejfar and Kaiser, 2005) that they were also identifi ed in fossils from the Upper Jurassicof the Morrison Formation (U.S.A.) (Britt et al., 2006).The termite marks can add valuable information on the taphonomic history of a dinosaur
fossil. These insects, depending on taxa or the conditions, can act separately to generate some simple cavities (“Ring pits”), or to do it in group, leaving different patterns of cavities in the bones, grouped (“clusters”) or linear (“lines of pits”). The presence of massive groups of superposed cavities, conferring to the bone a “pock-marked” aspect, allows to infer that the colonization of the Cambelas Allosaurus was sequential and reiterated (probably whenever the colony needed to cover nutritional defi ciencies). The presence of this type of marks in the Freixial Formation: constitutes an unpublished reference in the Mesozoico of the Iberian Peninsula; allows to interpret
the role of these primitive isoptera in the decomposition of animal carcasses and, therefore, in the recycling of nutrients; and it shows, again, ecological similarities to both sides of the NorthAtlantic at the end of the Jurassic.

It is described and is proposed a phylogenetic hypothesis about a theropod dinosaur collected in the Cambelas cliffs (Torres Vedras, Portugal) (Fig.1) (Ortega et al., 2006; Malafaia et al.,
2007). The levels in witch the theropod remains were founded belong to the Freixial Formation (Lourinhã Group), Tithonian (Upper Jurassic) in age.

Postcranial remains of a stegosaurian dinosaur from the locality of Moçafaneira (Torres Vedras, Portugal) are described. The specimen consists of a scarcely partial skeleton from the Portuguese Upper Jurassic Lourinhã Group. The presence of dorsal vertebrae with massive centra that are wider than longer and with lateral depressions and, the presence of a deep prepubic process allow us its assignation to the primitive stegosaurid Dacentrurus armatus. An overview of the
Dacentrurus material from Europe is also provided.

A maxillary fragment of a large theropod dinosaur from the Lourinhã Group (Upper Jurassic, uppermost Kimmeridgian) of the north of Praia da Corva (Porto Novo, Upper Jurassic
of Torres Vedras) is described. The specimen consists in the anterior part of a right maxilla that preserves the anterior edge of the antorbital fenestra and part of the nasal process. It shares with the Spinosauroidea Torvosaurus (Upper Jurassic of North-America and Portugal) the absence of a maxillary fenestra and an anteriorly lateral ridge that forms the anteroventral margin of the antorbital fenestra. These conditions are not present in the other large theropod dinosaurs that inhabit the Portuguese Jurassic ecosystems. We conclude that the specimen would be consideredas cf. Torvosaurus sp.

Recent developments and “democratization” of GIS (Geographic Information System) software have allowed infinite new perspectives and approaches on what GIS may do when applied to the various fields of human knowledge. As for Paleontology this challenge is particularly interesting because any attempt to
use GIS as a support tool will always, given the few attempts known, be one of the first approaches to the subject. This work pretends to give an approach on some of the objectives, challenges and potential gains that a GIS may bring to managing policies concerning paleontology collection and associated deposits. Also, it’s an invitation to all scientific community to contribute for the perfectioning of criteria that should be contemplated when creating a GIS applied to Paleontology.

It is described a new Allosaurus specimen excavated in the Upper Jurassic of Cambelas (Torres Vedras, Portugal). The
collected remains correspond to a partial skeleton composed by a series of seventeen articulated caudal vertebrae, with
their respective haemal arches, two caudal vertebral centra founded disarticulated and the elements of the right foot: calcaneum, distal fourth tarsal, the five metatarsals and all the elements of the fingers. The combination of the characters present in the Cambelas specimen results compatible with that described in the members of the genus Allosaurus (Madsen,
1976; Chure, 2000). The studied specimen is assigned to Allosaurus fragilis, because, it results indistinguishable of
this taxon and due to this species appears in several outcrops of the Portuguese Upper Jurassic record.

Pleurosternidae is a group of fossil turtles whose European record was, so far, poorly understood. However, the
recent description of the taxon Selenemys lusitanica, from the Upper Jurassic of Portugal, sheds new light on the
knowledge of these freshwater turtles.
The sequence of the flesh reconstruction process of Selenemys is described. With this objective, all the steps
followed from its discovery to obtain the reconstruction are explained and justified.