Results 21 to 30 of about 243 (101)

Occurrence of Torvoneustes (Crocodylomorpha, Metriorhynchidae) in marine Jurassic deposits of Oaxaca, Mexico [PDF]

Revista Brasileira de Paleontologia, 2017
IGM 9026 is a singular fossil collected at the beginning of the 20th century in an improperly documented site within the Tlaxiaco Basin, near to Tlaxiaco town, Oaxaca, Mexico. The age of the site was suggested as being early Cretaceous. This specimen is the holotype of Plesiosaurus (Polypticodon) mexicanus, which later was identified as a possible late
Barrientos Lara, J.I., Herrera, Laura Yanina, Fernández, Marta Susana, Alvarado Ortega, J.   +3 more
openaire   +5 more sources

Cutting the Gordian knot: a historical and taxonomic revision of the Jurassic crocodylomorph Metriorhynchus [PDF]

, 2020
Metriorhynchidae was a clade of extinct crocodylomorphs that adapted to a pelagic lifestyle, becoming a key component of Mesozoic lagoonal and coastal marine ecosystems.
Jahn J Hornung, Foffa, Davide, Steele, Lorna, Arnaud Brignon, Steel, Lorna, Young, Mark; id_orcid, Kitson, James J N, Hornung, Jahn J., Johnson, Michela, Young, Mark T, Mark T Young, Kitson, James J. N., Young, Mark T., Hornung, Jahn J, Sven Sachs, Michela M Johnson, James J N Kitson, Brignon, Arnaud, Sachs, Sven, Johnson, Michela M., Johnson, Michela M, Lorna Steel, Davide Foffa   +22 more
core   +1 more source

Convergence and functional evolution of longirostry in crocodylomorphs

Palaeontology, Volume 62, Issue 6, Page 867-887, November 2019., 2019
Abstract During the Mesozoic, Crocodylomorpha had a much higher taxonomic and morphological diversity than today. Members of one particularly successful clade, Thalattosuchia, are well‐known for being longirostrine: having long, slender snouts. It has generally been assumed that Thalattosuchia owed their success in part to the evolution of longirostry,
Antonio Ballell, Benjamin C. Moon, Laura B. Porro, Michael J. Benton, Emily J. Rayfield, Roger Benson   +5 more
wiley   +1 more source

Research history, taphonomy, and age structure of a mass accumulation of the ornithopod dinosaur Dysalotosaurus lettowvorbecki from the Upper Jurassic of Tanzania [PDF]

, 2021
Metriorhynchid crocodylomorphs were an important component in shallow marine ecosystems during the Middle Jurassic to Early Cretaceous in the European archipelago.
Heinrich, W.-D., DANIELA SCHWARZ, CHRISTIAN FOTH, Bussert, R., TOM R. HÜBNER, Foth, C., WOLF-DIETER HEINRICH, ROBERT BUSSERT, Hubner, T.R., Schwarz, D., Schwarz, Daniela, Bussert, Robert, Foth, Christian, Heinrich, Wolf-Dieter, Hübner, Tom R., Tom Hübner   +15 more
core   +3 more sources

A new specimen of marine crocodile from the Middle Jurassic of northern Chile: revalidation of Metriorhynchus westermanni (Crocodyliformes: Metriorhynchidae).

Andean Geology, 2008
Un nuevo ejemplar de cocodrilo marino calloviano (Metriorhynchidae), hallado en el curso medio de la quebrada Cherejara, Sierra del Medio, Región de Antofagasta, Chile, permite la revalidación de la especie Metriorhynchus westermanni Gasparini. El análisis de la caja craneal y los huesos asociados muestra que el holotipo deMetriohrynchus westermanni no
Zulma Gasparini, Ariana Paulina‐Carabajal, Guillermo Chong   +2 more
openaire   +4 more sources

Exploring the effects of weighting against homoplasy in genealogies of palaeontological phylogenetic matrices

Cladistics, Volume 40, Issue 3, Page 242-281, June 2024.
Abstract Although simulations have shown that implied weighting (IW) outperforms equal weighting (EW) in phylogenetic parsimony analyses, weighting against homoplasy lacks extensive usage in palaeontology. Iterative modifications of several phylogenetic matrices in the last decades resulted in extensive genealogies of datasets that allow the evaluation
Martín D. Ezcurra
wiley   +1 more source

Cranial anatomy and neuroanatomical features of a new specimen of Geosaurini (Crocodylomorpha: Metriorhynchidae) from west-central Argentina

Historical Biology, 2014
Fossil records of Geosaurini taxa in South American margins of the Eastern Pacific are scarce. We describe a new specimen of Geosaurini found in sedimentites of the Vaca Muerta Formation (Substeueroceras koeneni Biozone, uppermost Tithonian–lowermost Berriasian) and referred it as Dakosaurus cf. D. andiniensis.
Herrera, Laura Yanina, Vennari, Verónica Vanesa   +1 more
openaire   +2 more sources

Figure 6 in What is Geosaurus? Redescription of Geosaurus giganteus (Thalattosuchia: Metriorhynchidae) from the Upper Jurassic of Bayern, Germany

, 2009
Figure 6. Comparative cranial morphology for species previously referred to as Geosaurus gracilis. A, Cricosaurus grandis holotype, BSPG AS-VI-1. B, Cricosaurus suevicus lectotype, SMNS 9808. C, Cricosaurus elegans holotype, BSPG AS I 504.
Andrade, Marco Brandalise De, Young, Mark Thomas   +1 more
core   +1 more source

The youngest record of metriorhynchid crocodylomorphs, with implications for the extinction of Thalattosuchia [PDF]

, 2015
Here we describe an isolated tooth of a metriorhynchid crocodylomorph from the Hybla Formation (Aptian, Lower Cretaceous) of Rocca Chi Parra quarry (Montagna Grande, Calatafimi, Trapani Province), Sicily, Italy.
Foffa, Davide, Chiarenza, Alfio A., Catanzariti, Rita, Insacco, G., Chiarenza, A. A., Young, M. T., Young, Mark T., Carnevale, Giorgio, Foffa, D., Cau, Andrea, Insacco, Gianni, Carnevale, G., Catanzariti, R., Catanzariti R, Cau A, Young MT, Carnevale G, Chiarenza AA, Foffa D, Insacco G   +19 more
core   +1 more source

Figure 2 in Body size estimation and evolution in metriorhynchid crocodylomorphs: implications for species diversification and niche partitioning

, 2011
Figure 2. Evolutionary relationships of metriorhynchid genera based on the new phylogenetic analysis presented herein. Geological ranges are based on the taxonomic compendium in Young et al. (2010). Labelled nodes represent clades: (1) Metriorhynchidae; (
Young, Mark T., Bell, Mark A., Brusatte, Stephen L., De Andrade, Marco B.   +3 more
core   +2 more sources