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New material attributable to Deltasuchus motherali, a neosuchian from the Cenomanian of Texas, provides sampling across much of the ontogeny of this species. Detailed descriptions provide information about the paleobiology of this species, particularly with regards to how growth and development affected diet. Overall snout shape became progressively wider and more robust with age, suggesting that dietary shifts from juvenile to adult were not only a matter of size change, but of functional performance as well. These newly described elements provide additional characters upon which to base more robust phylogenetic analyses. The authors provide a revised diagnosis of this species, describing the new material and discussing incidents of apparent ontogenetic variation across the sampled population. The results of the ensuing phylogenetic analyses both situate Deltasuchus within an endemic clade of Appalachian crocodyliforms, separate and diagnosable from goniopholidids and pholidosaurs, herein referred to as Paluxysuchidae. This title is also available as Open Access on Cambridge Core.

Crocodilians, Fossil. --- Paleontology --- Cretaceous --- Cretaceous Period --- Mesosuchia --- Reptiles, Fossil --- paleontology --- pedagogy

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The book Rivers of Portugal: Communities, Processes and Alterations appears in a context in which it is recognized the great importance of rivers for the society and in which there is an intense scientific and technical development on the aquatic ecosystems in Portugal. In 17 chapters written by Portuguese researchers, it was intended to cover the various areas of research linked to rivers. Thus, this book begins with the fundamental physical aspects of rivers: hydrology and sedimentology. Eight chapters follow devoted to aquatic organisms: algae, fungi and bacteria, aquatic and riverine vegetation, invertebrates, fish, amphibians and reptiles, mammals, and birds. The following chapters address human activities that cause major changes in ecosystem quality, ecological monitoring, and restoration of degraded river sectors. The last chapters deal with the last section of a river, before the see, the estuaries, and the final one the thermo-mineral springs, environments closely linked to water courses.

Hydrology --- Bacteria --- Reptiles --- Secondary production --- Bioassessment --- Algae --- Rivers --- Birds --- Corse --- Fishes --- Primary production --- Mammals --- Fungi --- Aquatic organisms --- Plants --- Invertebrates --- Sediments --- Environmental alterations --- Amphibians --- Leaf litter decomposition

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This book includes all 14 articles contributed to the Special Issue "Systematics and Conservation of Neotropical Amphibians and Reptiles” in the journal Diversity, originally published in 2019 and 2020.

UCE --- phylogenetics --- amphibians --- Dendrobatidae --- Aromobatidae --- frogs --- systematics --- amphibian --- chytridiomycosis --- conservation --- disease --- enzootics --- epizootics --- population declines --- Dactyloidae --- ecomorphology --- Iguania --- Isla Cocos --- Isla Gorgona --- Isla Malpelo --- island biogeography --- lizards --- neotropics --- overwater dispersal --- miniaturization --- taxonomy --- geographical range --- habitat breadth --- local abundance --- threatened species --- extinction risk --- Viperidae --- deforestation --- timber harvest --- fire --- invasion of exotic plants --- public policy --- protected areas --- critically endangered --- data deficient --- amphisbaenians --- snakes --- South America --- Andes --- Pacific coast --- Perú --- species description --- threats --- species richness --- diversity gradient --- community structure --- reptiles --- Amazon --- rainforest --- lizard --- snake --- ecological niche modeling --- potential species distribution --- extant species distribution --- conservation areas --- Cusco --- high elevation --- Neotropical --- Qosqophryne --- tropical mountain --- systematic --- anura --- biogeography --- centrolenidae --- Bufonidae --- cryptic species --- forensic taxonomy --- Great American Biotic Interchange --- historical biogeography --- Isthmus of Panama --- Middle America --- molecular phylogenetics --- phylogeography --- Cercosaurinae --- Cercosaura manicata boliviana --- diversity --- Machupicchu --- Oxapampa --- Pholidobolus anomalus --- Peru --- n/a --- Perú