Dos nuevas publicaciones sobre las icnitas de cocodrilos jurásicos de Asturias


Se acaba de publicar el último numero del Boletín del Museo de Historia Natural y Ciencia de Nuevo México (New Mexico Museum of Natural History and Science Bulletin), titulado Huellas y pistas de cocodrilos (Crocodyle tracks and traces).

Una de las ilustraciones que acompañan el artículo sobre las huellas de Hatcherichnus en Asturias (pulsar sobre la imagen para verla a mayor tamaño)

La referencia del mismo es:

Jesper Milàn, Spencer G. Lucas, Martin G. Lockley & Justin A. Spielmann (Editores). 2010, Crocodyle tracks and traces (New Mexico Museum of Natural History and Science Bulletin, 51), 244 pp.,

e incluye trabajos sobre neoicnología, icnitas fósiles, marcas de mordiscos, coprolitos y tafonomía.

El equipo de investigación del MUJA publica en el Boletín del NMMNH dos trabajos sobre dos icnogéneros presentes en los yacimientos de la Formación Lastres (Kimmeridgiense) el la Costa de los Dinosaurios, concretamente:

- Hatcherichnus en Argüero, Tazones y Villaverde (Villaviciosa), y

- Crocodylopodus en Argüero, Quintueles y Villaverde (Villaviciosa).

Los dos trabajos son (pulsar sobre el título para descargarlos desde la web de aragosaurus.com):

Marco AVANZINI, Laura PIÑUELA, José Ignacio RUIZ-OMEÑACA & Jose Carlos GARCIA-RAMOS. 2010. The crocodile track Hatcherichnus, from the Upper Jurassic of Asturias (Spain). In: Crocodyle tracks and traces (J. Milàn, S.G. Lucas, M.G. Lockley & J.A. Spielmann, Eds.). New Mexico Museum of Natural History and Science Bulletin, 51: 89- 92

Abstract: Crocodylomorph footprints are described from the Late Jurassic (Kimmeridgian) coastal and deltaic units of the northern Spain (Asturias). They are included in the ichnogenus Hatcherichnus. Possible trackmakers are here interpreted as basal neosuchian crocodiles (including Thalattosuchia) such as Goniopholididae or Telosauridae.

Figura 2 del artículo sobre Hatcherichnus.

Marco AVANZINI, Laura PIÑUELA & Jose Carlos GARCIA-RAMOS. 2010. Preservational morphotypes of Crocodylopodus from the Late Jurassic of Asturias (spain). In: Crocodyle tracks and traces (J. Milàn, S.G. Lucas, M.G. Lockley & J.A. Spielmann, Eds.). New Mexico Museum of Natural History and Science Bulletin, 51: 239- 244.

Abstract: Preservational footprint morphotypes of small crocodylomorphs from Late Jurassic (Kimmeridgian) coastal and deltaic units of northern Spain (Asturias) are described in this paper. The morphotypes are attributed to the Late Jurassic-Early Cretaceous ichnospecies Crocodylopodus meijidei Fuentes Vidarte and Meijide Calvo, 2001. The morphological differences of the studied footprint sample are related to differences in the nature and competence of the substrate, and to a lesser degree to the behavior of the trackmakers.

Figura 2 del artículo sobre Crocodylopodus (pulsar sobre la imagen para verla a mayor tamaño)

El contenido completo del volumen Crocodyle tracks and traces es el siguiente:

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Martin G. Lockley, Spencer G. Lucas, Jesper Milàn, Jerald D. Harris, Marco Avanzini, John R. Foster & Justin A. Spielmann. The fossil record of crocodylian tracks and traces: An overview.

ABSTRACT: This volume fills a gap in the ichnological literature on crocodylian tracks and other traces (bite marks and coprolites). The definition of Crocodylia is presently in flux as both crown-based and stem-based definitions are present in the literature. The present volume provides articles focused on reports of new crocodylian track records from the Triassic, Jurassic, Cretaceous and Miocene, crocodylian neoichnology and new occurrences of crocodylian coprolites and bite marks. The global geographic distribution of crocodylian tracks is summarized, and the influence of Characichnos and Hatcherichnus ichnocoenoses/ichnofacies on global archetypal ichnofacies is discussed.

Neoichnology

Jesper Milàn & René Hedegaard. Interspecific variation in tracks and trackways from extant crocodylians.

James O. Farlow &Ruth M. Elsey. Footprints and trackways of the American alligator, Rockefeller Wildlife Refuge, Louisiana.

Cory J. Kumagi & James O. Farlow. Observations on traces of the American crocodile (Crocodylus acutus) from northwestern Costa Rica.

Tai Kubo. Variation in modern crocodylian limb kinematics and its effect on trackways.

Tracks and trackways

Hendrik Klein & Spencer G. Lucas. The Triassic footprint record of crocodylomorphs-A critical re-evaluation.

Marco Avanzini, Fabio M. Petti, Massimo Bernardi & Riccardo Tomasoni. Crocodyle-like footprints from the Upper Triassic (Carnian) of the Italian southern Alps.

Massimo Bernardi, Fabio M. Petti & Marco Avanzini. A webbed archosaur footprint from the Upper Triassic (Carnian) of the Italian southern Alps.

Mike Romano & Martin A. Whyte. Crocodilian and other non-dinosaurian tracks and trackways from the Ravenscar Group (Middle Jurassic) of the Cleveland basin, Yorkshire, UK.

Octávio Mateus & Jesper Milàn. First records of crocodyle and pterosaur tracks in the Upper Jurassic of Portugal.

Marco Avanzini, Laura Piñuela, José Ignacio Ruiz-Omeñaca & Jose Carlos Garcia-Ramos. The crocodyle track Hatcherichnus from the Upper Jurassic of Asturia (Spain).

Martin G. Lockley & John R. Foster. An assemblage of probable crocodylian traces and associated dinosaur tracks from the lower Morrison Formation (Upper Jurassic) of eastern Utah.

Martin G. Lockley, Rihui Li, Masaki Matsukawa & Jianjun Li. Tracking Chinese crocodylians: Kuangyuanpus, Laiyangpus, and implications for naming crocodylian and crocodylian-like tracks and associated ichnofacies.

Hebert Bruno Nascimento Campos, Rafael Costa da Silva & Jesper Milàn. Traces of a large crocodylian from the Lower Cretaceous Sousa Formation, Brazil.

Karen J. Houck, Martin G. Lockley, Megan Caldwell & Brandon Clark. A well-preserved crocodylian trackway from the South Platte Formation (Lower Cretaceous), Golden, Colorado.

Reiji Kukihara, Martin G. Lockley & Karen Houck. Crocodile footprints from the Dakota Group (Cretaceous), John Martin Reservoir, Bent County, Colorado.

Martin G. Lockley, Dan Fanelli, Katherine Honda, Karen Houck & Neffra Matthews. Crocodyle waterways and dinosaur freeways: Implications of multiple swim track assemblages from the Cretaceous Dakota Group, with special reference to assemblages from the Golden area, Colorado.

Martin G. Lockley. A solution to the Mehliella mystery: Tracking, naming, identifying and measuring the first crocodylian trackway reported from the Cretaceous (Dakota Group, Colorado).

Edward L. Simpson, Hannah L. Hilbert-Wolf, Michael C. Wizevich, Spencer G. Lucas, Edward Tester, Sarah E. Tindall & Jonathan J. Bernard. A crocodylomorph track in the Upper Cretaceous capping sandstone member of the Wahweap Formation, Grand Staircase-Escalante National Monument, Utah, U.S.A.

Peter L. Falkingham, Jesper Milàn & Phillip L. Manning. A crocodylian trace from the Lance Formation (Upper Cretaceous) of Wyoming.

Jean Le Loeuff, Komsorn Lauprasert, Suravech Suteethorn, Chirstel Souillat, Varavudh Suteethorn & Eric Buffetaut. Late Early Cretaceous crocodyliform trackways from northeastern Thailand.

Radek Mikulás. Characichnos isp., probable crocodyle swim traces from the Miocene of the Ceské Budéjovice basin, Czech Republic.

Bite marks

David R. Schwimmer. Bite marks of the giant crocodylian Deinosuchus on Late Cretaceous (Campanian) bones.

Radek Mikulás & Zdenek Dvorák. Possible crocodylian bite traces, Miocene of the Most Basin (Czech Republic).

Jesper Milàn, Jens Kofoed & Richard G. Bromley. Crocodylian-chelonian carnivory: Bite traces of dwarf caiman Paleosuchus palpebrosus, in red-eared slider, Trachemys scripta, carapaces.

Coprolites

Paulo Roberto de Figueiredo Souto. Crocodylomorph coprolites from the Bauru basin, Upper Cretaceous, Brazil.

Samantha D. Harrell & David R. Schwimmer. Coprolites of Deinosuchus and other crocodylians from the Upper Cretaceous of western Georgia, USA.

Jesper Milàn. Coprolites from the Danian Limestone (lower Paleocene) of Faxe quarry, Denmark.

Adrian P. Hunt & Spencer G. Lucas. Crocodyle coprolites and the identification of the producers of coprolites.

Taphonomy and ichnoassociations

Felipe Mesquita de Vasconcellos & Ismar de Souza Carvalho. Paleoichnological assemblage associated with Baurusuchus salgadoensis remains, a Baurusuchidae Mesoeucrocodylia from the Bauru Basin, Brazil (Late Cretaceous).

Marco Avanzini, Laura Piñuela & Jose Carlos Garcia-Ramos. Preservational morphotypes of Crocodylopus from the Late Jurassic of Asturias (Spain).

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Este volumen todavía no esta online, pero los números antiguos del New Mexico Museum of Natural History and Science Bulletin pueden descargarse gratuitamente en pdf, como ya comentó en su día El Vinosaurio.

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