Results 1 to 10 of about 410 (112)

First detection of porcine circovirus 4 (PCV-4) in Europe [PDF]

open access: yesVirology Journal, 2023
Porcine circovirus 4 (PCV-4) is a novel virus recently discovered (2019) in domestic pigs from China, although several studies have proven its circulation since 2008.
Rocío Holgado-Martín   +7 more
doaj   +2 more sources

Reconstruction of pectoral musculature in non-avialan paravians and basal birds: implications in the acquisition of flapping flight [PDF]

open access: yesBMC Ecology and Evolution
Several studies analyzed the origin of flapping birds, but only a few of them explored the scapular girdle myology in early birds and non-avian paravians.
Gastón E. Lo Coco   +3 more
doaj   +2 more sources

First monotreme from the Late Cretaceous of South America [PDF]

open access: yesCommunications Biology, 2023
An isolated tooth from the Late Cretaceous of Argentina indicates a monotreme presence in South America by the end of the Mesozoic.
Nicolás R. Chimento   +6 more
doaj   +2 more sources

Significant Detection of Porcine Circovirus 3 and Porcine Circovirus 4 in Wild Boars from Mid-Western Spain Without Apparent Sanitary Consequences [PDF]

open access: yesAnimals
PCV-3 and PCV-4 are novel viruses that can infect domestic pigs and wild boars. Both viruses are associated with multiple disorders in domestic pigs (reproductive failure, respiratory damage, etc.).
Rocío Holgado-Martín   +6 more
doaj   +2 more sources

The Sublingua of Lemur catta and Varecia variegata: Only a Cleaning Function? [PDF]

open access: yesAnimals
The sublingua is an anatomical structure located under the tongue. This rare organ can be present in some animals as a rudimentary structure, but among prosimian primates, such as lemurs and lorises, it is fully developed.
Juan Francisco Pastor   +6 more
doaj   +2 more sources

A new late Cretaceous squamate from Patagonia sheds light on Gondwanan diversity [PDF]

open access: yesScientific Reports
The fossil record of Mesozoic terrestrial squamates is very poor in the Southern Hemisphere. Currently recognised species represent less than 6% of the number described for Laurasian landmasses.
Federico L. Agnolín   +9 more
doaj   +2 more sources

A large therian mammal from the Late Cretaceous of South America [PDF]

open access: yesScientific Reports
Theria represent an extant clade that comprises placental and marsupial mammals. Here we report on the discovery of a new Late Cretaceous mammal from southern Patagonia, Patagomaia chainko gen. et sp.
Nicolás R. Chimento   +5 more
doaj   +2 more sources

Reply to: “Patagomaia could be a gondwanatherian” [PDF]

open access: yesScientific Reports
Nicolás R. Chimento   +2 more
doaj   +2 more sources

Comments on the Morphology of Basal Paravian Shoulder Girdle: New Data Based on Unenlagiid Theropods and Paleognath Birds

open access: yesFrontiers in Earth Science, 2021
In 1976 John Ostrom published an enlightening paper about the anatomical transformations in the shoulder girdle and forelimb elements along the origin of birds.
Fernando E. Novas   +6 more
doaj   +1 more source

A large Megaraptoridae (Theropoda: Coelurosauria) from Upper Cretaceous (Maastrichtian) of Patagonia, Argentina

open access: yesScientific Reports, 2022
Megaraptora is a theropod clade known from former Gondwana landmasses and Asia. Most members of the clade are known from the Early to Late Cretaceous (Barremian–Santonian), with Maastrichtian megaraptorans known only from isolated and poorly informative ...
Alexis M. Aranciaga Rolando   +5 more
doaj   +1 more source

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