Fernando E. Novas

Bernardino Rivadavia Natural Sciences Museum

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Federico L. Agnolín

Bernardino Rivadavia Natural Sciences Museum

115

Martín D. Ezcurra

Bernardino Rivadavia Natural Sciences Museum

Sebastián Rozadilla

Bernardino Rivadavia Natural Sciences Museum

Federico Brissón Egli

Bernardino Rivadavia Natural Sciences Museum

Matías J. Motta

Bernardino Rivadavia Natural Sciences Museum

Marcelo P. Isasi

Bernardino Rivadavia Natural Sciences Museum

Nicolás R. Chimento

Bernardino Rivadavia Natural Sciences Museum

Alexis M. Aranciaga Rolando

Bernardino Rivadavia Natural Sciences Museum

Juan I. Canale

National University of Río Negro

Diego Pol

Consejo Nacional de Investigaciones Científicas y Técnicas

Cooperative Institutions

Consejo Nacional de Investigaciones Científicas y Técnicas

Centro Científico Tecnológico - San Juan

Bernardino Rivadavia Natural Sciences Museum

Centro Científico Tecnológico - Tucumán

Universidad Nacional de La Plata

American Museum of Natural History

University of Buenos Aires

Centro Científico Tecnológico - La Plata

Museum of Paleontology Egidio Feruglio

Drexel University

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Bone microstructure in terrestrial Mesozoic Crocodylomorpha:Neuquensuchusand notosuchians

Lethaia (2022)

Jordi Alexis Garcia Marsà Agustín G. Martinelli Gabriel Lio William Nava Fernando E. Novas

10.18261/let.55.3.6

Cite

Citations (11)

A new abelisaurid dinosaur from the end Cretaceous of Patagonia and evolutionary rates among the Ceratosauria

Cladistics (2024)

Diego Pol Mattia A. Baiano David Černý Fernando E. Novas Ignacio A. Cerda

Abstract Gondwanan dinosaur faunae during the 20 Myr preceding the Cretaceous–Palaeogene (K/Pg) extinction included several lineages that were absent or poorly represented in Laurasian landmasses. Among these, the South American fossil record contains diverse abelisaurids, arguably the most successful groups of carnivorous dinosaurs from Gondwana in the Cretaceous, reaching their highest diversity towards the end of this period. Here we describe Koleken inakayali gen. et sp. n., a new abelisaurid from the La Colonia Formation (Maastrichtian, Upper Cretaceous) of Patagonia. Koleken inakayali is known from several skull bones, an almost complete dorsal series, complete sacrum, several caudal vertebrae, pelvic girdle and almost complete hind limbs. The new abelisaurid shows a unique set of features in the skull and several anatomical differences from Carnotaurus sastrei (the only other abelisaurid known from the La Colonia Formation). Koleken inakayali is retrieved as a brachyrostran abelisaurid, clustered with other South American abelisaurids from the latest Cretaceous (Campanian–Maastrichtian), such as Aucasaurus , Niebla and Carnotaurus . Leveraging our phylogeny estimates, we explore rates of morphological evolution across ceratosaurian lineages, finding them to be particularly high for elaphrosaurine noasaurids and around the base of Abelisauridae, before the Early Cretaceous radiation of the latter clade. The Noasauridae and their sister clade show contrasting patterns of morphological evolution, with noasaurids undergoing an early phase of accelerated evolution of the axial and hind limb skeleton in the Jurassic, and the abelisaurids exhibiting sustained high rates of cranial evolution during the Early Cretaceous. These results provide much needed context for the evolutionary dynamics of ceratosaurian theropods, contributing to broader understanding of macroevolutionary patterns across dinosaurs.

10.1111/cla.12583

Cite

Citations (8)

Paleobotany of the uppermost Cretaceous Chorrillo Formation, Santa Cruz Province, Argentina: insights in a freshwater floral community

Cretaceous Research (2022)

Ezequiel I. Vera Valeria S. Pérez Loinaze Damián Moyano‐Paz Marina D. Coronel Makoto Manabe

Paleobotany

Paleoecology

Paleosol

10.1016/j.cretres.2022.105296

Cite

Citations (11)

A new ornithopod from the Upper Cretaceous (Huincul Formation) of northwestern Patagonia, Argentina: Implications on elasmarian postcranial anatomy

Cretaceous Research (2024)

Rodrigo Alvarez Nogueira Sebastián Rozadilla Federico L. Agnolín Jordi Alexis Garcia Marsà Matías J. Motta

Postcrania

Cenomanian

Cursorial

Crest

10.1016/j.cretres.2024.105874

Cite

Citations (3)

The Complete Skull and Skeleton of an Early Dinosaur

Science (1992)

Paul C. Sereno Fernando E. Novas

The unearthing of a complete skull and skeleton of the early dinosaur Herrerasaurus ischigualastensis sheds light on the early evolution of dinosaurs. Discovered in the Upper Triassic Ischigualasto Formation of Argentina, the fossils show that Herrerasaurus , a primitive theropod, was an agile, bipedal predator with a short forelimb specialized for grasping and raking. The fossils clarify anatomical features of the common ancestor of all dinosaurs. Herrerasaurus and younger dinosaurs from Upper Triassic beds in Argentina suggest that the dinosaurian radiation was well under way before dinosaurs dominated terrestrial vertebrate communities in taxonomic diversity and abundance.

Skeleton (computer programming)

10.1126/science.258.5085.1137

Cite

Citations (128)

Large Cretaceous sphenodontian from Patagonia provides insight into lepidosaur evolution in Gondwana

Nature (2003)

Sebastián Apesteguı́a Fernando E. Novas

Tetrapod (structure)

Cenomanian

Extinction (optical mineralogy)

10.1038/nature01995

Cite

Citations (120)

José Fernando Bonaparte (1928 –2020)

Ameghiniana (2021)

Fernando E. Novas

10.5710/1851-8044-58.2.177

Cite

Citations (0)

A new specimen of Velocisaurus unicus (Theropoda, Abelisauroidea) from the Paso Córdoba locality (Santonian), Río Negro, Argentina

Figshare (2016)

Federico Brissón Egli Federico L. Agnolín Fernando E. Novas

Abelisauroids are the most abundant theropods in the Cretaceous beds of Patagonia. They are traditionally subdivided into large-sized Abelisauridae and smaller Noasauridae. Here, we describe a new specimen of the small enigmatic abelisauroid Velocisaurus unicus Bonaparte, 1991, which was previously known from a single incomplete specimen from Neuquén City, Neuquén Province, Patagonia. The new material comes from the Santonian Bajo de la Carpa Formation (Late Cretaceous) at the Paso Córdova locality, Río Negro Province. It comprises an almost complete left hind limb and offers novel information about the anatomy of this poorly known abelisauroid. The new material shows that Velocisaurus is remarkable in having a very short, stout, and anteriorly bowed femur, which has a notably subtriangular cross-section at its proximal end. The tibia is long and slender, and the anterior surface of the distal end is anteroposteriorly flat and transversely expanded, with an enlarged surface for the ascending process of the astragalus. The pes has a stout third metatarsal, rod-like metatarsals II and IV, and highly modified phalanges of digit IV. The unique combination of characters of Velocisaurus indicates that this taxon belongs to a still poorly understood radiation of gracile-limbed abelisauroids. The inclusion of Velocisaurus in a comprehensive phylogenetic analysis recovers a monophyletic Noasauridae, but with only very weak support. Detailed analysis of features supporting the inclusion of Velocisaurus within Noasauridae is discussed, and their implications for abelisauroid phylogeny are revisited. SUPPLEMENTAL DATA—Supplemental materials are available for this article for free at www.tandfonline.com/UJVP Citation for this article: Brissón Egli, F., F. L. Agnolín, and Fernando Novas. 2016. A new specimen of Velocisaurus unicus (Theropoda, Abelisauroidea) from the Paso Córdoba locality (Santonian), Río Negro, Argentina. Journal of Vertebrate Paleontology. DOI: 10.1080/02724634.2016.1119156.

Theropoda

10.6084/m9.figshare.3122938

Cite

Citations (0)

Maastrichtian palynological assemblages from the Chorrillo Formation, Patagonia, Argentina

Review of Palaeobotany and Palynology (2023)

Valeria S. Pérez Loinaze Ezequiel I. Vera Damian Moyano-Paz Marina D. Coronel Makoto Manabe

Gymnosperm

10.1016/j.revpalbo.2023.104893

Cite

Citations (12)

Osteology of the sauropodomorph dinosaur Jaklapallisaurus asymmetricus from the Late Triassic of central India

The Anatomical Record (2023)

Martín D. Ezcurra Rodrigo Temp Müller Fernando E. Novas Sankar Chatterjee

Abstract The Gondwana formations exposed in the Pranhita‐Godavari Valley of central India include Middle Triassic to Lower Jurassic continental deposits that provide essential information about the tetrapod assemblages of that time, documenting some of the oldest known dinosaurs and the first faunas numerically dominated by this group. The Upper Maleri Formation of the Pranhita‐Godavari Basin preserves an early‐middle Norian dinosaur assemblage that provides information about the early evolutionary history of this group in central‐south Gondwana. This assemblage comprises sauropodomorph dinosaurs and an herrerasaurian, including two nominal species. Here, we describe in detail the anatomy of one of those early dinosaurs, the bagualosaurian sauropodomorph Jaklapallisaurus asymmetricus . The new anatomical information is used to investigate the position of the species in an updated quantitative phylogenetic analysis focused on early sauropodomorphs. The analysis recovered Jaklapallisaurus asymmetricus as a member of Unaysauridae, at the base of Plateosauria, together with Macrocollum itaquii and Unaysaurus tolentinoi from the early Norian of southern Brazil. This phylogenetic result indicates that the dispersal of early plateosaurian sauropodomorphs between the Southern Hemisphere and what nowadays is Europe would have occurred shortly after Ischigualastian times because of the extension of their ghost lineage. Thus, the presence of early plateosaurians in the early Norian of South America and India reduces a previously inferred diachrony between the biogeographic dispersals of theropods and sauropodomorphs during post‐Ischigualastian times.

Laurasia

Tetrapod (structure)

Osteology

10.1002/ar.25359

Cite

Citations (6)