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New remains of Condorchelys antiqua (Testudinata) from the Early-Middle Jurassic of Patagonia: anatomy, phylogeny, and paedomorphosis in the early evolution of turtles
(Taylor & Francis, 2018-07)
New cranial and postcranial remains of the Early–Middle Jurassic turtle, Condorchelys antiqua, are described here in detail, providing new insights into the early evolution of turtles. Unconstrained and constrained cladistic ...
Developmental origins of complex radular characters in the Muricidae: the bifid rachidian edge
(Wiley, 2013-12)
Muricid gastropod radulae are more complex than those of most other neogastropods, especially in the number and variety of cusps, denticles, and interlocking mechanisms. How this complexity evolved, however, is unknown. ...
Postcranial skeleton of Cricosaurus araucanensis (Crocodyliformes: Thalattosuchia): morphology and palaeobiological insights
(Taylor & Francis, 2013-01)
The metriorhynchid crocodyliform Cricosaurus araucanensis (Gasparini & Dellapé) has been documented from Tithonian (Upper Jurassic) strata of the Vaca Muerta Formation exposed in the Neuquén Basin, northwest Patagonia, ...
EVOLUTION OF DISPARITY BETWEEN THE REGULAR AND VARIANT PHLOEM IN BIGNONIEAE (BIGNONIACEAE)
(BOTANICAL SOC AMER INC, 2011)
Premise of the study: The phloem is a plant tissue with a critical role in plant nutrition and signaling. However, little is still known about the evolution of this tissue. In lianas of the Bignoniaceae, two distinct types ...
Morphometric analysis of tracheary elements in four Portulaca species
(SOC BOTANICA BRASIL, 2008)
This paper deals with the morphological features of the tracheary elements of the vegetative organs in four Portulaca species (Portulaca hirsutissima Camb., P. halimoides L., P. wedermannii Poelln. and P. mucronata Link.) ...
The phylogenetic position of Dinogeophilus and a new evolutionary framework for the smallest epimorphic centipedes (Chilopoda: Epimorpha)
(SPB Academic Publ, 2015-09)
The centipedes of the clade Epimorpha change slightly during post-embryonic growth but there is huge variation between species in the maximum body size. New specimens of the rarely collected Neotropical genus Dinogeophilus ...
Análise morfométrica dos elementos traqueais em quatro espécies de Portulaca (Portulacaceae)
(Sociedade Botânica do Brasil, 2008)
Este trabalho aborda aspectos da caracterização morfológica dos elementos traqueais dos órgãos vegetativos de quatro espécies de Portulacaceae (Portulaca hirsutissima Camb., P. halimoides L., P. werdermannii Poelln., e de ...
Postmetamorphic ontogenetic allometry and the evolution of skull shape in Nest-building frogs Leptodactylus (Anura: Leptodactylidae)
(Wiley Blackwell Publishing, Inc, 2019-02)
Allometry constitutes an important source of morphological variation. However, its influence in head development in anurans has been poorly explored. By using geometric morphometrics followed by statistical and comparative ...
Evolutionary lability in floral ontogeny affects pollination biology in Trimezieae
(Wiley-Blackwell, 2021-05-21)
Premise There is little direct evidence linking floral development and pollination biology in plants. We characterize both aspects in plain and ornamented flowers of Trimezieae (Iridaceae) to investigate how changes in ...