Leonardo Kerber

Leonardo Kerber
Universidade Federal de Santa Maria · Centre of Natural and Exact Sciences (CCNE)

PhD Paleontology

About

129
Publications
32,123
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899
Citations
Additional affiliations
March 2016 - present
Universidade Federal de Santa Maria
Position
  • Paleontologist
January 2016 - March 2016
University of Zurich
Position
  • PostDoc Position
December 2014 - December 2015
Fundação Zoobotânica (FZB)
Position
  • PostDoc Position
Education
March 2011 - November 2014
March 2009 - February 2011

Publications

Publications (129)
Article
Early Triassic archosauriform remains are often related to the Proterosuchidae and the Erythrosuchidae, common stem-archosaurs in the aftermath of the end-Permian extinction event. South American proterosuchid remains are rare, with only a few specimens from the Lower Triassic Sanga do Cabral Formation briefly mentioned in literature. The Lower Tri...
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Full-text available
Faxinalipterus minimus was originally described as a purported pterosaur from the Late Triassic (early Norian) Caturrita Formation of southern Brazil. Its holotype comprises fragmentary postcranial elements, whereas a partial maxilla was referred to the species. The assignment of Faxinalipterus minimus to Pterosauria has been questioned by some stu...
Conference Paper
Full-text available
Fezes fossilizadas são icnofósseis que passam despercebidos por muitos paleontólogos. Seja por falta de interesse no material, seja por dificuldade em reconhecê-los em campo. Entretanto, diversos estudos já mostraram o potencial que os coprólitos têm na análise de aspectos paleobiológicos e paleoecológicos de diferentes grupos de paleovertebrados....
Conference Paper
Full-text available
O estudo dos coprólitos permite o acesso a informações paleobiológicas e paleoecológicas de organismos extintos por meio da análise de características morfológicas das fezes fossilizadas, de seu conteúdo micro- e macroscópico, além da caracterização da composição química e mineralógica. Não obstante, estes icnofósseis vêm sendo alvo de estudos mult...
Article
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In this paper, we study the postcranial morphology (humerus, ulna, innominate, femur, tibia, astragalus, navicular, and metatarsal III) of Neoepiblema, a giant Late Miocene South American rodent, searching for evidence about its paleobiology based on unpublished specimens from Solimões Formation (Upper Miocene, Brazil). The study includes a morphof...
Article
Dinomyidae is a clade of caviomorph rodents that include medium to gigantic forms. They are represented by a single living species, Dinomys branickii, distributed from Venezuela to Bolivia in forested regions. However, in the past, they were very diverse. The oldest confident fossil records come from the early and middle Miocene, and during the lat...
Conference Paper
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Coprólitos podem ser caracterizados como micro lagerstätten que preservam elementos que nos permitem acessar a paleoflora e paleofauna de um determinado contexto ecológico do passado. Não são apenas o resultado dos processos digestivos e a excreção de itens não aproveitados, mas são portadores de informações valiosas sobre a fisiologia, dieta e saú...
Article
Irajatherium hernandezi is a poorly known non‐mammaliaform cynodont from the Late Triassic of southern Brazil. A new specimen of this cynodont was found in recent fieldwork to the type‐locality, the Linha São Luiz site (Candelária Sequence), providing new insights into the anatomy of this mammalian forerunner. The new specimen comprises a partial s...
Article
Recent studies have analyzed and described the endocranial cavities of caviomorph rodents. However, no study has documented the changes in the morphology and relative size of such cavities during ontogeny. Expecting to contribute to the discussion of the endocranial spaces of extinct caviomorphs, we aim to characterize the cranial endocast morpholo...
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Sirenians are placental mammals that comprise the extant manatees (Trichechus manatus, T. inunguis, and T. senegalensis) and dugongs (Dugong dugon). Since the late 19th century, cranial endocasts of extinct sirenians have been employed to study the neurological evolution of these mammals during the Cenozoic. Here, we analyzed the endocranial morpho...
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The Pliocene–Pleistocene transition in the Neotropics is poorly understood despite the major climatic changes that occurred at the onset of the Quaternary. The San Gregorio Formation, the younger unit of the Urumaco Sequence, preserves a fauna that documents this critical transition. We report stingrays, freshwater bony fishes, amphibians, crocodil...
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Traversodontidae is a group of Triassic herbivorous/omnivorous cynodonts that represents the most diversified lineage within Cynognathia. In southern Brazil, a rich fossil record of late Middle/mid-Late Triassic cynodonts has been documented, with Exaeretodon riograndensis Abdala, Barberena, and Dornelles, 2002 and Siriusgnathus niemeyerorum Pavana...
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Recently, the morphology and encephalization of the brain endocast of the Triassic non-mammaliaform probainognathian cynodont Riograndia guaibensis were studied. Here, we analyzed the brain endocast of an additional specimen of this species. The new endocast shows well-defined olfactory bulbs and a median sulcus dividing the hemispheres, traits tha...
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In this contribution, we described a new fossil of a Pleistocene Tayassuidae from northern Brazil. The specimen is a left dentary with molars assigned to cf. Pecari tajacu recovered from an outcrop of the Rio Madeira Formation, State of Rondônia, Brazil. It represents the first Pleistocene fossil of this clade with stratigraphic provenance in the A...
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The present 3D Dataset contains the 3D model of a left dentary with m1-m3 analyzed in "A new fossil of Tayassuidae (Mammalia: Cetartiodactyla) from the Pleistocene of northern Brazil". The 3D model was generated using a laser scanning.
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Here we described a new specimen (UFRGS-PV-0543-T) of the non-mamaliaform cynodont Prozostrodon brasiliensis, collected in the Faixa Nova locality (Santa Maria City, State of Rio Grande do Sul, Brazil), which is referred to the Upper Triassic, Hyperodapedon Assemblage Zone. The new specimen includes a portion of the cranium (fragmented nasals, lacr...
Article
Dicynodonts represent a speciose clade of non-mammalian synapsids that lived from the middle Permian to the Late Triassic, exhibiting a Pangaean distribution. The South American Norian fossil record is represented by two species: Jachaleria colorata from Argentina and J. candelariensis from Brazil. The Brazilian specimens come from a relatively sma...
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The present 3D Dataset contains the 3D models of the sacral vertebrae analyzed in "Sacral co-ossification in dinosaurs: The oldest record of fused sacral vertebrae in Dinosauria and the diversity of sacral co-ossification patterns in the group".
Article
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The fusion of the sacrum occurs in the major dinosaur lineages, i.e. ornithischians, theropods, and sauropodomorphs, but it is unclear if this trait is a common ancestral condition, or if it evolved independently in each lineage, or even how or if it is related to ontogeny. In addition, the order in which the different structures of the sacrum are...
Article
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Our knowledge on the anatomy of the first dinosaurs (Late Triassic, 235–205 Ma) has drastically increased in the last years, mainly due to several new findings of exceptionally well-preserved specimens. Nevertheless, some structures such as the neurocranium and its associated structures (brain, labyrinth, cranial nerves, and vasculature) remain poo...
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The present 3D Dataset contains the 3D models and CT-Scan slices of the lower jaws and teeth analyzed in "A new prozostrodontian cynodont (Eucynodontia, Probainognathia) from the Upper Triassic of southern Brazil".
Article
Probainognathian cynodonts are well represented in the fossil record from the Middle and Upper Triassic of South America, especially in Brazil and Argentina. In this contribution, we describe a new genus and species of non-mammaliaform prozostrodontian cynodont from southern Brazil. The new taxon comes from the Niemeyer Site, a locality in which th...
Article
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A diverse fossil record of Cervidae (Mammalia) has been documented in the South American Pleistocene, when these animals arrived during the Great American Biotic Interchange. Using computed tomography-scanning techniques, it is possible to access the endocranial morphology of extinct species. Here, we studied the brain endocast of the extinct late...
Article
The Late Pleistocene-early Holocene faunal turnover in South America was characterized by the extinction of all mammals with body mass >300 kg and several smaller taxa, but the driving mechanisms behind it are still poorly understood. Here is presented an analysis of the extinction in the Pampa of southern Brazil (Rio Grande do Sul state), based on...
Article
Full-text available
Among the several fossils of South American tayassuids, it is remarkable the presence of a well-preserved skull from southern Brazil (Chuí Creek, Santa Vitória do Palmar, Santa Vitória Formation). Here, we provide an update in the taxonomic arrangement and anatomical description of this specimen assigned to Brasiliochoerus stenocephalus based on th...
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Archosauromorpha é definido como o clado que compreende todos os diápsidos mais intimamente relacionados à linhagem de aves (Ornithodira ou Avemetatarsalia) e crocodilianos (Pseudosuchia ou Crurotarsi) do que aos lepidossauros. Além de seus táxons basais (e.g., Tanystropheidae, Rhynchosauria e Allokotosauria), Archosauromorpha inclui o clado Archos...
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After the Permo-Triassic mass extinction, the archosauromorph fossil record is comparatively abundant and ecologically diverse. Among early archosauromorphs, tanystropheids gained considerable attention due to the presence of extreme skeletal adaptations in response to sometimes overspecialized lifestyles. The origin and early radiation of Tanystro...
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The ecomorphological diversity of caviomorph rodents in South America included giant forms, such as the chinchilloid Neoepiblema acreensis from the Upper Miocene of Brazil. The evolution of the brain anatomy and size of these animals can be now studied with non-invasive imaging techniques and exceptional fossils. Caviomorphs show diversity in the t...
Article
Traversodontidae is a less inclusive clade of cynognathian cynodonts that lived during the Triassic. Recently, a traversodontid from the southern Brazilian Triassic beds was described – Siriusgnathus niemeyerorum – based upon specimens found exclusively in its type-locality. No absolute age or index fossils have been reported for this locality, whi...
Article
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The present 3D Dataset contains the 3D models of the skull, brain and inner ear endocast analyzed in "Gnathovorax cabreirai: a new early dinosaur and the origin and initial radiation of predatory dinosaurs". Model IDs Description M3#442 3D model of the skull M3#443 3D model of the braincase M3#444 Endocast of brain, inner ear, and cranial nerves Ta...
Article
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Predatory dinosaurs were an important ecological component of terrestrial Mesozoic ecosystems. Though theropod dinosaurs carried this role during the Jurassic and Cretaceous Periods (and probably the post-Carnian portion of the Triassic), it is difficult to depict the Carnian scenario, due to the scarcity of fossils. Until now, knowledge on the ear...
Conference Paper
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O desenvolvimento de ações educativas em paleontologia é agente potencial na valorização e proteção do patrimônio paleontológico. Nesse sentido, o evento Paleodia é promovido anualmente pelo Centro de Apoio à Pesquisa Paleontológica (CAPPA) e pelo Centro de Ciências Naturais e Exatas (CCNE) da UFSM, visando divulgar a paleontologia e os fósseis da...
Article
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Dicynodontia is a major clade of terrestrial tetrapods that greatly diversified during the Permian and Triassic periods, reaching a worldwide distribution. In this study, the endocranial cavity of the Brazilian Permian dicynodont Rastodon procurvidens is described based on a digital endocast obtained using digital imaging (X-ray computed tomography...
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The rodent Neoepiblema acreensis (Chinchilloidea: Neoepiblemidae) is member of a lineage that reached gigantic dimensions during the Late Miocene of South America—the Neoepiblemidae. In this paper, the cranial anatomy of this rodent is reviewed. Noninvasive imaging is used to reveal internal structures. Our review is based mainly on an almost compl...
Article
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The extinct clade of caviomorph rodents Neoepiblemidae includes forms that lived in South America from the early Miocene to Pliocene. Among them is Perimys. The exceptional preservation of ear ossicles in this rodent is described and analyzed in a study of the phylogenetic transformations of these structures in caviomorphs including 21 extant and t...
Article
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The present 3D Dataset contains the 3D models of brain endocast of traversodontid cynodonts studied in: Pavanatto et al. 2019. Virtual reconstruction of cranial endocasts of traversodontid cynodonts (Eucynodontia: Gomphodontia) from the upper Triassic of Southern Brazil. Journal of Morphology. https://doi.
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This contribution contains 3D models of extinct rodents Dinomyidae from Miocene and Quaternary of Brazil. The Miocene specimens that were digitalized include the holotypes of Potamarchus adamiae, Pseudopotamarchus villanuevai, and Ferigolomys pacarana collected in the SolimõesSolim˜Solimões Formation (Upper Miocene), northern Brazil. The Quaternary...
Article
The brain endocasts of the late Triassic (Carnian) traversodontids (Eucynodontia: Gomphodontia) Siriusgnathus niemeyerorum and Exaeretodon riograndensis from southern Brazil are described based on virtual models generated using computed tomography scan data. Their skull anatomy resembles that of other nonmammaliaform cynodonts, showing an endocrani...
Article
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Mylododontidae (Xenarthra: Folivora) includes ground sloths of medium to large size. Lestodon armatus is mylodontid that have been found in Pleistocene fossiliferous deposits of South America, with most of its records at the southern portion of the continent. Here, we reported a new specimen assigned to this species recovered from a Quaternary depo...
Article
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Neoepiblemidae (Caviomorpha) includes South American hystricognath rodents that together with Chinchillidae and Dinomyidae compose the clade Chinchilloidea. Despite the considerable advance in knowledge of the past decades, these extinct rodents are still poorly studied. To contribute to the taxonomy, systematics, and ontogeny of this group, in thi...
Article
In this work, new fossils of Hydrochoerinae rodents (Caviomorpha: Caviidae: Hydrochoerinae) from the Quaternary of the intertropical region of Brazil are described, almost 180 years after the first fossils of these animals were found in Lagoa Santa, Minas Gerais. The fossils studied herein were collected in caves of States of Bahia (Toca dos Ossos...
Article
https://sciencetrends.com/a-single-grave-several-generations-paleoecological-insights-from-skeletons-of-an-extant-species/
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Since the end of the Miocene, South American Dinomyidae rodents have declined in diversity, and are now represented by a single species—Dinomys branickii. The Quaternary fossils of Dinomyidae rodents are very rare, limited to some records from the tropical region of Brazil. One of them is a peculiar taxon described during the 1950s: Tetrastylus wal...
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Tanystropheidae is a clade of early archosauromorphs with a reported distribution ranging from the Early to the Late Triassic of Asia, Europe, and North America. Although some specimens with possible tanystropheid affinities from the Lower Triassic beds of Brazil have been previously attributed to “Protorosauria”, little is known about the tanystro...
Article
The fossiliferous beds of the Solimões Formation, western Brazilian Amazon have yielded several vertebrate fossils that are key to understand the evolution of Neotropical biotas. Although this sedimentary unit has been studied for more than two centuries, no absolute dates are available so far, preventing more precise bio/chronostratigraphic interp...
Conference Paper
Full-text available
O registro fossilífero de vertebrados em fácies do Membro Passo das Tropas é escasso quando comparado aquele das fácies pelíticas do Membro Alemoa da Supersequência Santa Maria (Mesotriássico-Neotriássico), caracterizado pela abundância de tetrápodes fósseis como arcossauromorfos e sinápsidos. Neste trabalho, é apresentado o primeiro registro de Ar...
Article
A new Upper Triassic fossiliferous outcrop, the Niemeyer Site, from the Santa Maria Supersequence (Paraná Basin, Southern Brazil) is reported. The lithology found in this locality is consistent with that found in the Candelária Sequence. The high prevalence of traversodontid cynodonts in this site is particularly notable, with collected specimens m...