Federico Agnolin

Federico Agnolin
Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"

About

289
Publications
159,462
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
3,748
Citations
Introduction
Skills and Expertise

Publications

Publications (289)
Article
Full-text available
Pleistocene large carnivores from the Pampean Region have been studied almost always based on bone remains. Here we report the first coprolite of a large carnivore from the Late Pleistocene of the Pampean Region, Argentina. The coprolite was found associated with megafauna bone remains and it shows the typical shape and size of a carnivorous mammal...
Article
Full-text available
55 MATADEROS. Pampa y asfalto 54 Adoquines que cuentan (pre) historia Mataderos conserva aún empedrados que persisten desde su época fundacional. Las calles San Pedro, Gral. Garzón, y el Paseo Liborio Pupillo, especie de calle semicircu-lar que rodea la estatua El Resero, dan tes-timonio de estos adoquines; Lisandro de la Torre, en cambio, contiene...
Article
Full-text available
Desde mediados del siglo XIX, los paleon-tólogos buscan y encuentran restos fósiles de animales en la ciudad de Buenos Aires y sus inmediaciones. La ciudad nació ha-cia fines del siglo XVI ajustada a las pres-cripciones de la Corona española, contenidas en las Or-denanzas de la Población, que eran parte de las Leyes de Indias. Esas normas incluían,...
Article
Full-text available
Elio Massoia (1936-2001) se interesó desde joven por las ciencias naturales y rápidamente descubrió en los mamíferos, y especialmente entre los roedores, un campo de investigación casi ilimitado. Durante su vida Massoia generó más de 250 trabajos publicados y editó una revista de comunicaciones científicas de elaboración muy artesanal que se convir...
Article
Full-text available
In this contribution, we seek to make visible a set of fossils from the well-known fossiliferous locality of Monte Bolca, Verona, Italy. The set is part of the paleontological heritage that protects the Museum of Natural and Anthropological Sciences “Prof. Antonio Serrano” of Paraná, Entre Ríos. The materials were acquired from the Civic Museum of...
Article
The Greater Rhea (Rhea americana, Rheidae) is a flightless paleognath with a wide geographical distribution in South America. The morphology of its shoulder girdle and wings are different from those of flying birds and some characteristics are similar to basal birds and paravian theropods. We present a detailed osteological, myological, and functio...
Article
The aim of the present contribution is to review the fossil record of chimaeroids in Argentina. We review previous records from Argentina, including the presence of Cretaceous chimaeroids reported by Ameghino in the 19 th century from the Cretaceous of Santa Cruz province. We re-analyse the species Callorhynchus crassus described from the Miocene o...
Article
Full-text available
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 remains. The aim of the present contribution is to describe a partial skeleton of a megaraptorid...
Article
Armored catfshes of the subfamily Loricariinae include more than 250 species and 31 genera distributed along South America from Costa Rica to Buenos Aires province in central Argentina. In spite of that, the entire clade lacks a single paleontological record. In this work, a new species of Loricariinae belonging to the genus Sturisomatichthys from...
Article
Full-text available
Here we describe a new hadrosaurid from the Upper Cretaceous (Campanian-Maastrichtian) Allen Formation of R ıo Negro Province, northwest Patagonia. The new taxon is based on cranial and postcranial elements from subadult and adult specimens. The new taxon may have reached 8-9 m in total body length, and it is diagnosed by a unique combination of ch...
Article
Full-text available
The fossil record of abelisaurid theropods in South America is mostly limited to Brazil and Argentina. In Argentina, abelisaurids are generally known from Patagonia, where their record is relatively abundant and includes well-known and complete specimens. However, for Northwestern Argentina, abelisaurids are represented by incomplete and isolated b...
Article
The deposits of the Chorrillo Formation (Maastrichtian) were accumulated during a ‘continental window’ that occurred during the Late Cretaceous in the Austral-Magallanes foreland basin, southern Patagonia, Argentina. The aim of the present contribution is to describe the depositional conditions as well as new vertebrate and plant fossils from this...
Preprint
Full-text available
Megaraptorans are a theropod clade distributed in former Gondwana landmasses and Asia. Most members of the clade are known from early Cretaceous to Turonian times whereas Maastrichtian megaraptorans are known just from isolated and poorly informative remains. The aim of present contribution is to describe a partial skeleton of a megaraptorid coming...
Article
Full-text available
The fossil record of freshwater fishes and anurans from the Miocene in Patagonia is relatively patchy, a large number of specimens remaining undescribed. The aim of the present contribution is to describe a fossil association of percomorphacean fishes and calyptocephalellid anurans from the early to late Miocene Collón Curá Formation, at Chubut pro...
Article
The fossil record of the genus Bothrops is still sparse in South America. Most records belong to extant species recovered in strata not older than the late Pleistocene. The genus was also tentatively reported from the early Pliocene and earlymiddle Pleistocene of Buenos Aires province, Argentina, based on fragmentary specimens. The aim of the prese...
Article
Full-text available
The fossil record of Early Cretaceous birds in South America has been restricted to members of Enantiornithes from the Crato Formation (Aptian) of Brazil. Here we describe a new genus and species of bird discovered at Pedra Branca Mine, Nova Olinda County, Ceará State, Brazil, which adds to the avian fossil record from the Crato Formation. The spec...
Article
The record of sauropods in the Upper Cretaceous of Patagonia is rich. However, there are still several blanks on this record. Here it is described a new sauropod assemblage coming from the Salitral Ojo de Agua Area, Río Negro province, northern Patagonia, Argentina (Allen Formation; Maastrichtian). Remains of indeterminate saltasaurines, aeolosauri...
Article
Full-text available
Carcharocles megalodon is considered a macropredatory shark that inhabited the seas around the world from middle Miocene to late Pliocene. In Argentina, it has only been formally recorded at two localities. Here, we report the first record for this taxon in the Buenos Aires Province. This occurrence is based on an isolated tooth recovered on the be...
Article
Full-text available
Lewisuchus admixtus is an early dinosauriform described by Alfred Romer in 1972 on the basis of a single, incomplete skeleton, collected in lower Upper Triassic rocks of the renowned Chañares Formation, at the Los Chañares type‐locality, La Rioja Province, north‐western Argentina. Recent field explorations to the type‐locality resulted in the disco...
Article
Full-text available
The record of Cretaceous terrestrial lizards (Squamata) in South America is patchy, with seven species described from north-eastern and south-eastern Brazil, and few isolated records of iguanians and scincomorphans from the Argentinian Patagonia. Herein we describe a new genus and species of Cretaceous lizard, Paleochelco occultato gen. et sp. nov....
Article
Full-text available
We describe the basal mesoeucrocodylian Burkesuchus mallingrandensis nov. gen. et sp., from th Upper Jurassic (Tithonian) Toqui Formation of southern Chile. The new taxon constitutes one of the few records of non-pelagic Jurassic crocodyliforms for the entire South American continent. Burkesuchus was found on the same levels that yielded titanosaur...
Article
The fossil record of gondwanatherian mammaliaforms from Patagonia is represented by several species known on the basis of isolated teeth, with the single exception of a partial dentary with two molariforms of the Paleocene species Sudamerica ameghinoi. The aim of the present contribution is to describe both a fragmentary dentary (with the base of t...
Article
Full-text available
Se reporta la presencia de dos especies del género Gomphocarpus (Apocynaceae, Asclepiadoideae) que crecen espontáneamente en la Argentina: G. fruticosus (escapada de cultivo) y G. physocarpus (naturalizada). Las mismas se describen, se indica su distribución geográfica, usos, polinización y dispersión. Además, se analiza el estatus de naturalizació...
Article
Alvarezsaurs were a group of theropod dinosaurs found in Asia, North America, South America and Europe during Jurassic and Cretaceous periods. In spite of being known by several specimens, diverse aspects of their anatomy remain poorly known. The aim of the present paper is to describe and analyse some points of the neuroanatomy of a newly collecte...
Article
Full-text available
In 1976 John Ostrom published an enlightening paper about the anatomical transformations in the shoulder girdle and forelimb elements along the origin of birds. Most of his ideas were based on comparing Archaeopteryx lithographica with the extant New World vulture Cathartes aura. Ostrom offered innovative ideas about range of movements and function...
Article
The fossil record of ornithischians in South America is sparse, and they are clearly underrepresented when compared with sauropod dinosaurs. However, recent discoveries indicate that ornithischians were more diversified than thought. The aim of the present contribution is to describe isolated remains belonging to ankylosaurs, and ornithopods, inclu...
Article
Full-text available
Unenlagia comahuensis was originally described as a phylogenetic link between nonavian dinosaurs and birds. Later it was interpreted by some authors as belonging to the deinonychosaurian clade Dromaeosauridae, and more recently as phylogenetically closer to birds than to dromaeosaurids. The only known specimen is represented by an incomplete skelet...
Article
Full-text available
Triassic beds from Argentina and Brazil provide the most relevant fossil record of early dinosauriforms in terms of numerical abundance and taxonomic diversity. This record currently represents the best source to understand the origin and early evolutionary radiation of dinosaurs. In the present paper we offer an updated review focused on the avail...
Article
Full-text available
An incomplete tarsometatarsus of a fossil Ciconiidae is here described. It comes from the Tarija Formation (Lower-Middle Pleistocene) of Bolivia. It is assigned to the large extinct species Ciconia maltha, recorded in the Mid-Late Pleistocene of North and Central America. The material here reported represents the fi rst fossil record for Ciconia ma...
Article
Full-text available
The fossil record of birds in South America is still very patchy. One of the most remarkable birds found in Miocene deposits from Patagonia is Brontornis burmeisteri Moreno and Mercerat, 1891. This giant flightless bird is known by multiple incomplete specimens that represent a few portions of the skeleton, mainly hindlimb bones. Since the XIX cent...
Article
Full-text available
The fossil record of fishes from the Farola de Monte Hermoso locality (lower Pliocene) in the southern Buenos Aires province, Argentina, shows an unusual composition. The locality at the southern boundary of the Brazilian Ichthyogeographic Realm. However, its fossil record is composed of fossil fishes that are not necessarily related to Brazilian l...
Article
Full-text available
The aim of the present contribution is to describe a partial fossil skull belonging to the catfish genus Sorubim. The specimen originates from the Late Miocene Ituzaingó Formation, at Paraná locality, Entre Ríos Province, Argentina. The material described here (MACN Pv-14224) was determined just to genus because the living species of Sorubim are mo...
Article
Full-text available
Resumen: Entre 1956 y 1965 los paleontólogos Osvaldo A. Reig y Rodolfo M. Casamiquela llevaron adelante una serie de trabajos sobre anuros fósiles que impactaron de manera decisiva sobre la comunidad paleontológica. Sus trabajos consistieron en la descripción de una gran diversidad de anuros sudamericanos extintos así como en los hallazgos de las e...
Article
Full-text available
Diverse hypotheses have been proposed with the aim to explain the extinction of Late Pleistocene/Holocene mammals, including the Megafauna from America. Some authors support that human being was the direct responsible of extinction by means of intensive hunting, as proposed by the “blitzkrieg” or overkilling hypothesis. However, evidence is not con...
Article
Full-text available
Pterosaurs were the first vertebrates to evolve powered flight¹ and comprised one of the main evolutionary radiations in terrestrial ecosystems of the Mesozoic era (approximately 252–66 million years ago), but their origin has remained an unresolved enigma in palaeontology since the nineteenth century2–4. These flying reptiles have been hypothesize...
Article
Full-text available
Gondwanatheria is an enigmatic mammaliaform clade distributed in the Cretaceous and Paleogene of South America, Africa, Madagascar, India and Antarctica. The Mesozoic record in South America is restricted to the Latest Cretaceous of Río Negro and Chubut provinces, Argentina and Magallanes Region of southern Chile. The aim of the present contributio...
Article
The fossil record of chondrichthyans in Argentina is still poorly known. The aim of the present contribution is to describe teeth representing a chondrichthyan assemblage from Man Aike Formation (late Eocene) exposed in the Lago Argentino area, at Santa Cruz province, Argentina. This report includes Striatolamia macrota, Macrorhizodus praecursor, C...
Article
Full-text available
Recientemente la mastozoología ha visto un renacer de los estudios taxonómicos. En este sentido, las colecciones mastozoológicas depositadas en instituciones científicas son de un patrimonio científico incalculable. La Fundación de Historia Natural Félix de Azara resguarda más de 14.000 piezas correspondientes a la colección Mastozoológica, lo que...
Article
The genus Megatherium includes nearly ten species that are distributed along the Pleistocene of South America. In contrast with the abundant and geographically widespread Pleistocene record, remains of Pliocene Megatherium are restricted to a single and poorly known species from the highlands of Perú. The aim of the present contribution is to descr...
Article
Abelisaurid theropods are well known in Cretaceous beds along South America, particularly Patagonia. However, the record of latest Cretaceous abelisauroids is still far from satisfactory. Until recently, few taxa were described from Maastrichtian beds: Carnotaurus sastrei and Quilmesaurus curriei, but also perhaps Abelisaurus comahuensis. In this c...
Article
Full-text available
Discussions about the origin of flight almost unanimously assume that early birds positioned (and moved) their wings in the same basic manner as living flying birds, with reconstructed wings extended with the airfoil surface parallel to the ground and forelimbs moving in a dorsoventral arc. Such reconstructions of wing posture and movements for ext...
Article
Full-text available
The Litopterna is an extinct clade of endemic South American ungulates that range from Paleocene up to late Pleistocene times. Because of their unique anatomy, litopterns are of uncertain phylogenetic affinities. However, some nineteenth century authors, considered litopterns as related to perissodactyl ungulates, a hypothesis recently sustained by...
Chapter
Discussions about the origin of flight almost unanimously assume that early birds positioned (and moved) their wings in the same basic manner as living flying birds, with reconstructed wings extended with the airfoil surface parallel to the ground and forelimbs moving in a dorsoventral arc. Such reconstructions of wing posture and movements for ext...
Article
Full-text available
This study contributes to the knowledge of continental fishes recovered from sedimentary successions corresponding to the Bonaerean Stage/Age (late mid-Pleistocene) in the locality of Centinela del Mar, General Alvarado County, Buenos Aires province, Argentina. At this site we describe fossil fishes from a palaeolagoon, including Corydoras sp., Pim...
Article
Full-text available
Loricariidae is a very diverse lineage of Neotropical fishes, being the most speciose family of the order Siluriformes. However, the loricariid fossil record is still very sparse. The aim of the present contribution is to describe in detail several bones belonging to the loricariid genus Acanthicus coming from late Miocene beds located at the Paran...
Article
The fossil history of Neogene chelonioid sea turtles from South America is very incomplete. To date, only the isolated remains of dermochelyids and stem-cheloniids have been reported from the Miocene Pacific coast, and a single indeterminate dermochelyid is known from the early Miocene of Patagonia. Here, we describe a partial lower jaw of a fossil...
Article
Full-text available
En el presente artículo se realizó una revisión de los aportes efectuados por el Doctor José Luis Minoprio (1903-1992), médico y zoólogo mendocino. Se listaron sus contribuciones a las ciencias médicas y se analizaron especialmente sus aportes a las ciencias naturales, en el ámbito de la zoología, la paleontología, la geología y también desde la an...
Book
Full-text available
Resúmenes de los trabajos presentados en la VI Semana de la Arqueología de Buenos Aires. Buenos Aires representa a una de las capitales del mundo con mayores ofertas culturales, y entre ellas, la arqueología y la paleontología son un polo de atracción de niños y adultos. La Dirección General Patrimonio, Museos y Casco Histórico llevó a cabo la Sext...
Article
Full-text available
La fauna de planarias terrestres (Tricladida, Geoplanoidea), babosas (Mollusca, Gas tropoda), diplópodos (Myriapoda, Diplopoda), sínfilos (Myriapoda, Symphylla) y arácnidos (Chelicerata) de la Ciudad Autónoma de Buenos Aires (CABA, Argentina) permanece pobremente conocida. En la presente contribución se dan a conocer nuevos registros de especies de...
Article
Full-text available
The Chañares Formation exhibits one of the most important archosauriform records of early Carnian ecosystems. Here we present new data on the palaeohistology of Chañares archosauriforms and provide new insights into their paleobiology, as well as possible phylogenetically informative traits. Bone microstructure of Lagerpeton chanarensis and Tropido...
Article
Full-text available
Mosasaurs were a cosmopolitan group of marine squamate reptiles that lived during the Late Cretaceous period. Tylosaurinae mosasaurs were characterized for having an edentulous rostrum anterior to the premaxillary teeth. External morphology of the snout of the tylosaurine Taniwhasaurus antarcticus from the Upper Cretaceous beds at James Ross Island...
Article
Full-text available
The fossil record of basal paravians in Gondwana is still poorly known, being limited to the Cretaceous unenlagiids from South America and the problematic Rahonavis from Madagascar. Here we report on a new paravian from the Cenomanian-Turonian (Late Cretaceous) of Río Negro province, NW Patagonia, Argentina. The new taxon exhibits a derived bird-li...
Article
Full-text available
The fossil record of owls of the families Strigidae and Tytonidae in South America is poor. The aim of the present contribution is to report for the first time fossil Strigiformes from Riobamba Canton, at Chimborazo province, in Ecuador. The specimens come from a large owl burrow from Late Pleistocene beds of the Cangagua Formation. We report the f...
Article
Full-text available
We report the first record of the genus Xiphactinus from southern South America. The recovered fossil material consists of an associated maxilla and abdominal vertebra, probably derived from latest Maastrichtian marine deposits of the Salamanca Formation in Chubut Province, Argentina. Xiphactinus has been widely reported from Late Cretaceous strata...
Article
We report the first record of the Porto Alegre Golden-eyed Treefrog, Trachycephalus mesophaeus (Hensel, 1867), from Argentina based on a single specimen collected in the 1980s at Las Lomitas, province of Formosa, northeastern Argentina. This new record, within the Chacoan Biogeographical Region, is separated by more than 1300 km from its main range...
Article
Full-text available
We report the first record of the Porto Alegre Golden-eyed Treefrog, Trachycephalus mesophaeus (Hensel, 1867), from Argentina based on a single specimen collected in the 1980s at Las Lomitas, province of Formosa, northeastern Argentina. This new record, within the Chacoan Biogeographical Region, is separated by more than 1300 km from its main range...