[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Subject Index][Author Index]
Planet of the New Papers
Jerry,
Congratulations on your new therizinosaur! I would, naturally,
appreciate a PDF when one becomes available. Thanks.
Jerry D. Harris writes:
> Hi All -
>
> More new goodies! First, I now have a list of the papers that were
> published last year in the _Actas de las III Jornadas Internacionales sobre
> Paleontología de Dinosaurios y su Entorno_; I only have two of these as PDFs
> (the two with abstracts quoted below). No new taxa erected that I could
> see, though lots of interesting tidbits and lots of track stuff:
>
>
> Benton, M.J. 2006. The origin of the dinosaurs; pp. 11-19 in Colectivo
> Arqueológico-Paleontológico de Salas (ed.), Actas de las III Jornadas
> Internacionales sobre Paleontología de Dinosaurios y su Entorno. Colectivo
> Arqueológico-Paleontológico de Salas de los Infantes, Burgos.
>
> ABSTRACT: he origin of the dinosaurs has long been debated. There are two
> aspects, phylogenetic and ecological-evolutionary. Much of the phylogenetic
> confusion has been resolved by cladistic analysis of basal archosaurs which
> shows that the dinosaurs originated as part of a major clade
> Avemetatarsalia/ Ornithodira. Closest relatives of the dinosaurs are small
> Mid Triassic bipedal animals such as Marasuchus from Argentina. The basal
> avemetatarsalian is Scleromochlus from the Late Triassic of Scotland. The
> classic ecological-evolutionary model for the initial radiation of the
> dinosaurs had been that they competed gradually through the Triassic with
> precursor groups, and eventually prevailed. More detailed study of the
> timing of events suggests that the dinosaurs radiated opportunistically in a
> two-phase model, with expansion of herbivorous sauropodomorphs fi rst in the
> early Norian, and expansion of large theropods and ornithischians in the
> Early and Mid Jurassic. Both expansion phases followed extinction events.
>
> Canudo, J.I. 2006. La ambigüedad paleobiogeográfia de los dinosaurios
> ibéricos durante el Cretácico Inferior; pp. 21-45 in Colectivo
> Arqueológico-Paleontológico de Salas (ed.), Actas de las III Jornadas
> Internacionales sobre Paleontología de Dinosaurios y su Entorno.
>
> Martill, D.M., Naish, D., and Earland, S. 2006. Dinosaurs in marine strata:
> evidence from the British Jurassic, including a review of the allochthonous
> vertebrate assemblage from the marine Kimmeridge Clay Formation (Upper
> Jurassic) of Great Britain; pp. 47-83 in Colectivo
> Arqueológico-Paleontológico de Salas (ed.), Actas de las III Jornadas
> Internacionales sobre Paleontología de Dinosaurios y su Entorno.
>
> Pereda Suberbiola, X. 2006. El dinosaurio acorazado Polacanthus del
> Cretácico Inferior de Europa y el estatus de los Polacanthidae
> (Ankylosauria); pp. 85-104 in Colectivo Arqueológico-Paleontológico de Salas
> (ed.), Actas de las III Jornadas Internacionales sobre Paleontología de
> Dinosaurios y su Entorno.
>
> Fernández-Baldor, F.T. 2006. Restos directos de dinosaurios en Burgos
> (Sistema Ibérico): un balance provisional; pp. 105-128 in Colectivo
> Arqueológico-Paleontológico de Salas (ed.), Actas de las III Jornadas
> Internacionales sobre Paleontología de Dinosaurios y su Entorno.
>
> Weishampel, D.B. 2006. Another look at the dinosaurs of the East Coast of
> North America; pp. 129-168 in Colectivo Arqueológico-Paleontológico de Salas
> (ed.), Actas de las III Jornadas Internacionales sobre Paleontología de
> Dinosaurios y su Entorno.
>
> Wilson, J.A. 2006. An overview of titanosaur evolution and phylogeny; pp.
> 169-190 in Colectivo Arqueológico-Paleontológico de Salas (ed.), Actas de
> las III Jornadas Internacionales sobre Paleontología de Dinosaurios y su
> Entorno.
>
> ABSTRACT: Titanosaurus was named in 1877 for two caudal vertebrae and an
> isolated femur from Cretaceous rocks of central India. Titanosauridae was
> coined soon afterwards to encompass numerous taxa, despite their often
> tenuous associations and limited morphological overlap. Long recognized as
> wastebasket taxa, "Titanosaurus indicus", "Titanosauridae" and coordinated
> rank-taxa are now considered invalid, but the unranked taxon Titanosauria
> remains valid. Titanosauria currentles includes 40+ species and fi rst
> appeared during the Middle Jurassic in the form of "wide-gauge" trackways.
> Titanosaur body fossils do not appear until the Late Jurassic, but they are
> inferred to have occupied nearly all continental landmasses during the Early
> Cretaceous. Titanosaurs are the predominant or exclusive sauropods during
> the Late Cretaceous and represent a key clade for investigation of
> survivorship patterns and the effects of major tectonic rearrangements on
> dinosaur evolution. Titanosauria includes several large-bodied species
> (e.g., Antarctosaurus giganteus, Argyrosaurus superbus, Argentinosaurus
> huinculensis), as well as species that are diminutive by sauropod standards
> (e.g., Saltasaurus loricatus, Neuquensaurus australis).
> Evaluation of previous phylogenetic analyses of Titanosauria provides
> insight into the structure of the character data thus far generated and a
> starting point for future studies. Where comparable, analyses agree on
> several topological points, including (1) the basal position of Andesaurus
> and Malawisaurus and (2) the derived position of Saltasaurus, Neuquensaurus,
> Opisthocoelicaudia, and Alamosaurus. This investigation identifi es several
> stable titanosaur nodes and a core of character data for future analysis.
> However, many titanosaur species have yet to be included in a phylogenetic
> analysis. A comprehensive phylogenetic analysis of Titanosauria will require
> incorporating these taxa as well as new character data. Resolution of
> titanosaur interrelationships will spur investigation into Mesozoic
> paleobiogeography, changes in body size distribution through time,
> wide-gauge limb posture and its biomechanical signifi cance, and patterns in
> herbivorous apomorphies of Cretaceous dinosaurs. These and other avenues
> will be explored in future research.
>
>
> Arcos, A., Sanz, E., Pascual, C., Uriel, S., Latorre, P., and Hernández, N.
> 2006. Las deformaciones producidas en los sedimentos por el paso de grandes
> dinosaurios: el caso del yacimiento de Saurópodos de Miraflores I, Fuentes
> de Magaña (Soria, España); pp. 193-222 in Colectivo
> Arqueológico-Paleontológico de Salas (ed.), Actas de las III Jornadas
> Internacionales sobre Paleontología de Dinosaurios y su Entorno.
>
> Bravo, A.M., Huerta, P., Izqueirdo Montero, L.A., Montero Huerta, D.,
> Martínez Pérez, G., Fernández-Baldor, F.T., and Urién Montero, V. 2006. Un
> nuevo yacimiento de cáscaras de huevo de dinosaurio de la provincia de
> Burgos, España (Maastrichtiense, Fm. Santibañez del Val); pp. 223-234 in
> Colectivo Arqueológico-Paleontológico de Salas (ed.), Actas de las III
> Jornadas Internacionales sobre Paleontología de Dinosaurios y su Entorno.
>
> Hernández, N., Pérez-Lorente, F., and Requeta, E. 2006. La Pellejera.
> Ejemplo de nuevos yacimientos icníticos en Cameros (La Rioja-Soria, España);
> pp. 235-252 in Colectivo Arqueológico-Paleontológico de Salas (ed.), Actas
> de las III Jornadas Internacionales sobre Paleontología de Dinosaurios y su
> Entorno.
>
> Hernández Medrano, N., Arribas, C.P., Latorre Macarrón, P., and Sanz Pérez,
> E. 2006. Huellas de terópodos y pterosaurios en Valdegén I (Villar del Río,
> Soria, España); pp. 253-271 in Colectivo Arqueológico-Paleontológico de
> Salas (ed.), Actas de las III Jornadas Internacionales sobre Paleontología
> de Dinosaurios y su Entorno.
>
> Latorre Macarrón, P., Arribas, C.P., Sanz Pérez, E., and Hernández Medrano,
> N. 2006. El yacimiento con huellas de saurópodos de Miraflores I, Fuentes de
> Magaña (Soria, España); pp. 273-296 in Colectivo Arqueológico-Paleontológico
> de Salas (ed.), Actas de las III Jornadas Internacionales sobre
> Paleontología de Dinosaurios y su Entorno.
>
> Cuadrado, J.M. 2006. Posibles huellas de saurópodo del Sinemuriense de
> Talveila (Soria, España); pp. 297-311 in Colectivo
> Arqueológico-Paleontológico de Salas (ed.), Actas de las III Jornadas
> Internacionales sobre Paleontología de Dinosaurios y su Entorno.
>
> Fernández-Baldor, F.T., Izquierdo Montero, L.A., Huerta, P., Montero Huerta,
> D., Pérez Martínez, G., and Urién Montero, V. 2006. El yacimiento de icnitas
> de dinsoaurios de Costalomo (Salas de los Infantes, Burgos, España): nuevos
> datos; pp. 313-347 in Colectivo Arqueológico-Paleontológico de Salas (ed.),
> Actas de las III Jornadas Internacionales sobre Paleontología de Dinosaurios
> y su Entorno.
>
> Fernández-Baldor, F.T., Izquierdo Montero, L.A., Contreras Izquierdo, R.,
> Huerta, P., Montero Huerta, D., Pérez Martínez, G., and Urién Montero, V.
> 2006. Un dinosaurio 'iguanodóntido' del Cretácico Inferior de Burgos
> (España); pp. 349-363 in Colectivo Arqueológico-Paleontológico de Salas
> (ed.), Actas de las III Jornadas Internacionales sobre Paleontología de
> Dinosaurios y su Entorno.
>
> Vila, B., Gaete, R., Galobart, À., Oms, O., Peralba, J., and Escuer, J.
> 2006. Nuevos hallazgos de dinosaurios y otros tetrápodos continentales en
> los Pirineos sur-centrales y orientales: resultados preliminares; pp.
> 365-378 in Colectivo Arqueológico-Paleontológico de Salas (ed.), Actas de
> las III Jornadas Internacionales sobre Paleontología de Dinosaurios y su
> Entorno.
>
>
> The Benton paper is available at
> http://palaeo.gly.bris.ac.uk/Benton/reprints/2006Salas.pdf; the Wilson paper
> at
> http://www-personal.umich.edu/~wilsonja/JAW/Publications_files/Wilson2006b.pdf.
>
>
>
> Next, Mike already chastized my lapsus calami in not spotting
> _Paluxysaurus_, but there's a Jurassic mammal paper in the same ish of PE:
>
> Prasad, G.V.R., and Manhas, B.K. 2007. A new docodont mammal from the
> Jurassic Kota Formation of India. Palaeontologica Electronica 10(2):7A1-11.
>
> ABSTRACT: The late Middle Jurassic to Lower Cretaceous Kota Formation of
> peninsular India has previously yielded "symmetrodontan" and eutriconodontan
> mammals. Bulk screenwashing of the clays and mudstones interbedded with the
> limestone band representing the Upper Member of the Kota Formation and
> exposed along a stream cutting 150 m west of Paikasigudem village, Adilabad
> District, Andhra Pradesh, India, produced an isolated mammalian upper
> premolar. The premolar with its asymmetrical occlusal outline, two labial
> cusps, pinching of crown lingual to the labial cusps, and a wide talon basin
> is very similar to the upper premolars of docodont mammals. Detailed
> comparisons with the upper dentition of various known docodont taxa showed
> that the new specimen from India has premolar morphology comparable to a
> Haldanodon pattern, and here it is assigned to Gondtherium dattai gen. et
> sp. nov. (Docodontidae). This represents the first discovery of docodont
> mammals from the Southern Hemisphere and suggests a wide geographic
> distribution for this group of mammals.
>
>
> Particularly interesting because it calls the Kota Formation "Middle
> Jurassic-Lower Cretaceous"...?!? Cited as based on palynological data from
> 2001; that reference, if anyone wants it, is:
>
> Vijaya, and Prasad, G.V.R. 2001. Age of the Kota Formation,
> Pranhita-Godavari Valley, India: a palynological approach. Journal of the
> Palaeontological Society of India 46:77-93.
>
> Granted, there's a common author between the two, but I'm not aware of
> anyone else using this late age for the unit, and more recent stuff still
> calls it Lower Jurassic, e.g.:
>
> Bandyopadhyay, S., and Sengupta, D.P. 2006. Vertebrate faunal turnover
> during the Triassic-Jurassic transition: an Indian scenario; pp. 77-85 in
> Harris, J.D., Lucas, S.G., Spielmann, J.A., Lockley, M.G., Milner, A.R.C.,
> and Kirkland, J.I. (eds.), The Triassic-Jurassic Terrestrial Transition. New
> Mexico Museum of Natural History and Science Bulletin 37.
>
>
>
> Lastly, a couple of brand-spankin' new dinosaurs, one therizinosaur, one
> hadrosaur:
>
> Li, D., Peng, C., You, H., Lamanna, M.C., Harris, J.D., Lacovata, K.J., and
> Zhang, J. 2007. A large therizinosauroid (Dinosauria: Theropoda) from the
> Early Cretaceous of northwestern China. Acta Geologica Sinica (English
> Edition) 81(4):539-549.
>
> ABSTRACT: We herein describe an associated partial postcranial skeleton of a
> theropod dinosaur discovered in the Lower Cretaceous Xinminpu Group of the
> Yujingzi Basin, in the Jiuquan area of Gansu Province, northwestern China.
> Features of its humerus, such as strongly expanded proximal and distal ends,
> a well developed medial tuberosity, distal condyles expressed on the humeral
> cranial surface, and a hypertrophied entepicondyle, definitively establish
> the therizinosauroid affinities of the specimen. It differs from other
> therizinosauroids in having a shallow, poorly demarcated glenoid fossa with
> a prominent rounded and striated tumescence on the dorsomedial surface of
> its scapular portion, and a pubis with a strongly concave cranial margin. It
> represents a new taxon, Suzhousaurus megatherioides gen. et sp. nov.
> Cladistic analysis recovers Suzhousaurus as the sister taxon of Nothronychus
> mckinleyi from the mid-Cretaceous of western North America; together, they
> are basal members of the Therizinosauroidea, more derived than the Early
> Cretaceous Falcarius and Beipiaosaurus but less derived than Alxasaurus and
> the Therizinosauridae. Along with "Nanshiungosaurus" bohlini from possibly
> coeval beds in the Mazongshan area of northern-most Gansu, Suzhousaurus
> represents one of the largest-known Early Cretaceous therizinosauroids,
> demonstrating that this clade attained considerable body size early in its
> evolutionary history.
>
>
>
> Mo, J., Zhao, Z., Wang, W., and Xu, X. 2007. The first hadrosaurid dinosaur
> from southern China. Acta Geologica Sinica (English Edition) 81(4):550-554.
>
> ABSTRACT: A new hadrosaurid dinosaur, Nanningosaurus dashiensis gen. et sp.
> nov., is described based on an incomplete skeleton from the Late Cretaceous
> red beds of the Nalong Basin, Guangxi, southern China. Diagnostic features
> for the new taxon include the presence of a tall and sharply peaked dorsal
> process of the maxilla with reduced process of the jugal and a distinct
> lacrimal facet, gracile humerus with low, rounded deltopectoral crest,
> mandibular condyle of the quadrate transversly broad with reduced
> paraquadrate notch, dentary tooth with sinuous median carina and subsidiary
> ridge, relatively few tooth positions, ischial shaft straight along most of
> its distance, but to curve dorsally and expand at the distal end before the
> ischial foot begins. Phylogenetic analysis suggests that Nanningosaurus
> dashiensis is a basal member of Lambeosaurinae.
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Jerry D. Harris
> Director of Paleontology
> Dixie State College
> Science Building
> 225 South 700 East
> St. George, UT 84770 USA
> Phone: (435) 652-7758
> Fax: (435) 656-4022
> E-mail: jharris@dixie.edu
> and dinogami@gmail.com
> http://cactus.dixie.edu/jharris/
>
> STORIES IN SIX WORDS OR LESS:
>
> "Machine. Unexpectedly, I'd invented
> a time"
> -- Alan Moore
>
> "Easy. Just touch the match to"
> -- Ursula K. Le Guin
>
> "Batman Sues Batsignal: Demands
> Trademark Royalties."
> -- Cory Doctorow
>
>
>