The southernmost occurrence of Ichthyosaurus from the Sinemurian of Portugal
@article{Sousa2021TheSO, title={The southernmost occurrence of Ichthyosaurus from the Sinemurian of Portugal}, author={Jo{\~a}o Carlos Moreno de Sousa and Octávio Mateus}, journal={Fossil Record}, year={2021} }
Abstract. The ichthyosaur fossil record of Portugal is composed of
specimens from the localities of São Pedro de Moel, Alhadas, Cadima, Murtede,
Casal do Combo, Condeixa, Alvaiázere and Tomar, within the confines of
the Lusitanian Basin, ranging in age from the Sinemurian to the Aalenian. We
reviewed the historical ichthyosaur finds in Portugal, and in this work we
focus on the specimen IST-MDT 85, from the Sinemurian of Praia de Nossa
Senhora da Vitória, central west coast of Portugal. The…
References
SHOWING 1-10 OF 27 REFERENCES
Un crâne d'Ichthyosaurus communis (Reptilia, Ichthyosauria) du Sinémurien supérieur de Lorraine belge : Jurassic - Triassic vertebrates
- Environmental Science
- 1995
The fragmentary skull of an ichthyosaur, discovered in the Upper Sinemurian (Lower Jurassic) from Bonnert (Belgian Lorraine), is described in the present paper. This fossil is attributed to…
Two new species of Ichthyosaurus from the lowermost Jurassic (Hettangian) of Somerset, England
- Biology
- 2017
Two new species of Ichthyosaurus are recognized from multiple specimens, supported by a phylogenetic analysis which finds the new species more closely related to each other than to other species of the genus.
ON THE EVOLUTION AND HOMOLOGIES OF ICHTHYOPTERYGIAN FOREFINS
- Geography
- 1999
The evolution of forefins within the Ichthyopterygia is re-evaluated based on the largest set of data available up to present, including recently reported Early Triassic forms, and it is concluded that StenopteryGius, and all other ichthyoperygians belonging to the clade that survived into the Jurassic, lack digit I of the forelimb.
A taxonomic reassessment of Ichthyosaurus communis and I. intermedius and a revised diagnosis for the genus
- Biology
- 2018
Ichthyosaurus communis De la Beche & Conybeare, 1821 and I. intermedius Conybeare, 1822 have been considered synonymous by some researchers, but distinct species by others. The distinction between…
XXX.—Notice of the discovery of a new Fossil Animal, forming a link between the Ichthyosaurus and Crocodile, together with general remarks on the Osteology of the Ichthyosaurus.
- HistoryTransactions of the Geological Society
- 1821
In the course of a series of observations on the organic remains contained in the lias in the vicinity of Bristol, my attention was particularly attracted by the numerous vertebræ of oviparous…
Lithostratigraphy, sequence stratigraphy and depositional setting of the Pliensbachian and Toarcian series in the Lusitanian Basin (Portugal).
- Geography, Environmental Science
- 2007
Key-words: Pliensbachian, Toarcian, Lusitanian Basin, Portugal, Carbonate ramp, Lithostratigraphy, Sequence stratigraphy.
In the Lusitanian Basin (Central Portugal), the Middle-Upper Liassic…
A new phylogeny of ichthyosaurs (Reptilia: Diapsida)
- Environmental Science, Biology
- 2019
The largest phylogenetic analysis of ichthyosaurs to date is presented, with 114 ingroup taxa coded at species level and the Bayesian inference tree with gamma-distribution rate prior selected as the best tree based on recent analyses showing improved accuracy.
High‐resolution carbon cycle and seawater temperature evolution during the Early Jurassic (Sinemurian‐Early Pliensbachian)
- Geography, Environmental Science
- 2016
The Early Jurassic was marked by a progressive recovery from the end‐Triassic mass extinction and punctuated by recurring episodes of anoxia. These changes, associated with fluctuations in carbon…
Ichthyosauria: their diversity, distribution, and phylogeny
- Biology
- 2000
The Ichthyosauria is the group of Mesozoic marine reptiles that was most highly adapted to the aquatic environment and probably were unable to leave the water.
TNT version 1.5, including a full implementation of phylogenetic morphometrics
- Computer ScienceCladistics : the international journal of the Willi Hennig Society
- 2016
Using algorithms described in this paper, searches for landmark data can be made tens to hundreds of times faster than it was possible before, thus making phylogenetic analysis of landmarks feasible even on standard personal computers.