Notizie Lavini di Marco..
Inviato 09 luglio 2007 - 12:09
Inviato 09 luglio 2007 - 02:50
Integrating ichnofossil and body fossil records to estimate locomotor posture and spatiotemporal distribution of early sauropod dinosaurs: a stratocladistic approach
Paleobiology, Summer 2005 by Wilson, Jeffrey A
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Stratocladistic analysis of early sauropod and sauropod-like taxa evaluated 172 morphological characters and a single stratigraphie character in three ichnofossils and 12 body fossils (see Appendix online at http:// dx.doi.org/10.1666/03047.Sl). Terminal taxa included all relevant Upper Triassic and Lower Jurassic sauropods, as well as three of the ichnofossils discussed above (the Portozuelo form [Argentina], Tetrasauropus [U.S.A.], the Lavini di Marco form [Italy]; Figs. 5, 6). Many of the terminal taxa have been included in previous analyses (e.g., Upchurch 1995, 1998; Wilson and Sereno 1998; Wilson 2002), but Gongxianosaurus, Isanosaurus, Tazoudasaurus, and the ichnofossils have not. Morphological characters included only those characters resolved as synapomorphies or autapomorphies at nodes basal to Neosauropoda, as well as uniquely derived autapomorphies (Wilson 2002: Appendices 2-4). I have emended scorings to accommodate recently described materials of Omeisaurus (Tang et al. 2001), Mamenchisaurus (Ouyang and Ye 2002), and Barapasaurus (Bandyopadhyay et al. 2003). The stratigraphic character scores the presence of a terminal taxon in any of the 14 Triassic and Jurassic stratigraphic stages from the Anisian to the Oxfordian. Because no sauropods in this analysis are preserved in two stages (Ladinian, Aalenian), these states were not coded and did not contribute to total debt. The remaining 12 stratigraphic stages were coded as character states 0-9 and A or B. The ampersand symbol (&) denotes polymorphism, in which a taxon occupied multiple stratigraphic levels; the forward slash (/) indicates uncertainty, in which a taxon occupies one of several possible stratigraphic levels (Maddison and Maddison 2000). Character polarity was determined by successive outgroups to Sauropoda (Prosauropoda, Theropoda).
Results.-Cladistic analysis of the 12 body fossil ingroup taxa produced a single tree (Fig. 8A). The Upper Triassic and Lower Jurassic forms BHkanasaurus and Antenonitrus were resolved as the basalmost sauropods, but this analysis does not test the possibility that they are prosauropods, which remains an open question (see above, "Content"). Rather, this analysis assumes they are sauropods and examines their affinities within the group. Gongxianosaurus, Isanosaurus, Tazoudasaurus, and Vulcanodon were resolved as sequential outgroups to Eusauropoda. The basal portion of the topology was the most poorly supported (decay indices = 1), but the derived, eusauropod portion of this topology is better supported. Addition of three ichnofossils to this ingroup resulted in two equally parsimonious trees, a strict consensus of which preserves the relationships of eusauropod outgroups but provides no resolution within Eusauropoda (Fig. 8B). The Portozuelo and Tetrasauropus ichnotaxa were resolved as proximate outgroups to Eusauropoda, and the Lavini di Marco ichnotaxon was in an unresolved position within Eusauropoda. An Adams consensus tree offers more resolution, retaining a single polytomy at the base of Eusauropoda between Shunosaurus, the Lavini di Marco ichnotaxon, and a clade of more derived eusauropods (Fig. 8C).
Dinosaur Tracks as Paleogeographic Constraints: New Scenarios for the Cretaceous Geography of the Periadriatic Region
Authors: Umberto Nicosia a; Fabio Massimo Petti a; Gianluca Perugini a; Simone D'Orazi Porchetti a; Eva Sacchi a; Maria Alessandra Conti a; Nino Mariotti a; Annalisa Zarattini b
Affiliations: a UniversitÃ "La Sapienza. Roma. Italy
b MBBAACC - Soprintendenza per i Beni Archeologici del Lazio. Roma. Italy
Publication Frequency: 4 issues per year
Published in: journal Ichnos, Volume 14, Issue 1 & 2 January 2007 , pages 69 - 90
Formats available: HTML (English) : PDF (English)
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A really unexpected finding of sauropod and theropod footprints in southern Latium raises to four the number of the trampled levels recognized in central and southern Italy. After the recent findings in Latest Jurassic and Early, mid and Late Cretaceous carbonate platform deposits of the Periadriatic region, dinosaur footprints seem to provide very important paleogeographic constraints for reconstructing the geodynamic history of the Mediterranean area. The presence of a varied ichnoassociation makes acceptance of the current paleogeographic models concerning the relative and absolute position of the Laziale-Abruzzese-Campano and of Apulian-Dinaric domains during the Late Cretaceous more and more problematic. Dinosaur footprints, combined with other paleontological data, demonstrate that these areas were never completely pulled apart by deep seaways, while frequent or continuous links between them, and to southern and northern mainlands, probably persisted. These data also allowed us to improve our understanding of the timing of the Mesozoic plate motion in this segment of the Western Tethys.
Keywords: Theropod; Sauropod; Footprints; Cenomanian; Mediterranean paleogeography
Inviato 09 luglio 2007 - 03:14
Avanzini M., Gierlinski G. & Leonardi G. 2001 - First report of sitting Anomoepus tracks in european Lower Jurassic (Lavini di Marco site - northern Italy). Rivista Italiana di Paleontologia e Stratigrafia, 107, 1: 131-136, Milano.
FIRST REPORT OF SITTING ANOMOEPUS TRACKS
IN EUROPEAN LOWER JURASSIC (LAVINI DI MARCO SITE - NORTHERN ITALY)
MARCO AVANZINI, GERARD GIERLINSKI & GIUSEPPE LEONARDI
Abstract. The palaeontologic site at Lavini di Marco, near to Rovereto (Trento), reveals a wide fossil tidal flat of Early Jurassic age (Calcari Grigi Formations â€“ lower Member; Hettangian to lower Sinemurian ). An extensive set of dinosaur prints were discovered a few years ago and are now the subject of ichnological and paleobiological studies. The prints which are described in present short note are believed to represent the right and left footof the same individual, set in a side-by-side, sub-parallel, sitting posture. The prints can be classified as Anomoepus Hitchcock 1848. Amongst recognised ichnospecies, most of the charachteristics of the prints here described point to Moyenisauropus dodai Ellenberger 1974 (recte Anomoepus dodai Olsen & Galton 1984) of Lesotho. By contrast, the prints found at Lavini di Marco differ from the Anomoepus found in central-east Europe. These characters would seem to confirm the Gondwanic origins of the Rovereto ichnofauna as previously supposed from the study of other taxa.
VOLUME 107 N. 1
Rivista Italiana di
Paleontologia e Stratigrafia
Inviato 09 luglio 2007 - 10:31
Inviato 09 luglio 2007 - 10:51
AVANZINI, M. & FRISIA, S. 1996. Sedimentology and diagenesis of dinosaur trackbearing beds
Of the lavini di marco (northern italy): Environmental implications within the Early
jurassic palaeogeographic framework.. Atti Tic. Sc. Terra. 4, 0:33-46.
AVANZINI, M., GIERLINSKI, G. & LEONARDI, G. 2001. First report of sitting Anomoepus tracks
in European Lower Jurassic (Lavini di Marco Site-Northern Italy).. Rivista Italiana di
Paleontologia e Stratigrafia... 107, 1:131-136.
mi sÃ che questo Ã¨ quello di sopra...
DALLA VECCHIA F.M., 2001 (ma scritto nel 1995) - I reperti ossei dei tetrapodi
terrestri paleozoici e mesozoici dâ€™Italia. In: a cura di G. LEONARDI & P. MIETTO -
Dinosauri in Italia. Le orme giurassiche dei Lavini di Marco (Trentino) e gli altri
resti fossili italiani, pp. 321-355, Accademia Editoriale, Pisa/Roma. Con riassunto in
lingua inglese a p. 479.
Inviato 17 luglio 2007 - 11:41
Dubito che si possa capire qualcosa da questa fototgrafia schif..........
A Trento ci dovrebbere esserci non solo il Museo di Scienze Naturali di trento ma anche un museo sulla geologia ed i fossili privato... cercero info il pÃu presto possibile.
Inviato 17 luglio 2007 - 02:04
Mediterranean and the paleogeography of the Apulia Platform (Zone del Gargano ed Istria!)
A. Bosellini Earth-Science Reviews 59 (2002) 211â€“ 234
Evidence of a sizeable population of large dinosaurs on the Apulia carbonate platform calls for a revision of the current paleotectonic and paleogeographic scenario of the eastern Mediterranean area. A review of geophysical and geological data of the Ionian Sea and surrounding areas leads to envisage the Late Jurassicâ€“Early Cretaceous Ionian Sea region as a â€˜â€˜cul-de-sacâ€™â€™- type basin enclosed by shallow-water carbonate banks, connecting the Apulia carbonate platform to Peloponnesus, northern Cyrenaica, Cyrene Seamount and Medina Ridge. These banks were repeatedly and periodically exposed to subaerial conditions, and offered vast land areas for migration of dinosaurs. As regards the nature of the Mesozoic Ionian basin, interpretations are quite controversial. The â€˜â€˜continentalâ€™â€™ vs. â€˜â€˜oceanicâ€™â€™ crust debate will likely be solved only when the Ionian basin crust will be reached by drilling. The conclusion of the present review leads to consider Adria as a true African Promontory and the Apulia
Platform as a sort of Florida Peninsula, attached to North Africa (Cyrenaica spur), subdividing the oceanic(?) â€˜â€˜Mesozoic Mediterraneanâ€™â€™ into a western Ionian basin and an eastern Levantine basin.