MANUEL ROJAS-MANRÍQUEZ; FEOLA, SILVERIO F.; MELCHOR, RICARDO NÉSTOR

Trace fossil zonation in interdune Lakes: example from the neogene of Eastern Patagonia, Argentina

Ichnos:an International Journal of Plant and Animal; Año: 2024 vol. 31

CARDONATTO, M. CRISTINA; MELCHOR, RICARDO NÉSTOR

NEOICHNOLOGY OF ARMADILLOS: KEYS FOR THE PALEOECOLOGICAL AND BEHAVIORAL INTERPRETATION OF FOSSIL TETRAPOD BURROWS

PALAIOS; Año: 2023 vol. 38 p. 57 - 75

MELCHOR, RICARDO NÉSTOR; MARIANO PEREZ; PABLO MARTÍN VILLEGAS; ESPINOZA, NAHUEL; ALDO MARTÍN UMAZANO; CARDONATTO, M. CRISTINA

Early Cretaceous lepidosaur (sphenodontian?) burrows

Scientific Reports; Año: 2023 vol. 13

FEOLA, SILVERIO F.; TERESA MANERA; TATUMI, SONIA; ANGELA KINOSHITA; FERNANDO BARBOSA JR; OWALDDO BAFFA; MÁRCIO YEE; MELCHOR, RICARDO NÉSTOR

High-resolution sedimentological and stratigraphic framework for the Pehuen Co Paleoichnological site, late Pleistocene, Buenos Aires, Argentina

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Lugar: Amsterdam; Año: 2023 vol. 129

MELCHOR, RICARDO NÉSTOR; FEOLA, SILVERIO F.; CARDONATTO, M. CRISTINA; ESPINOZA, NAHUEL; MANUEL ROJAS-MANRÍQUEZ; LORENA HERAZO

First terror bird footprints reveal functionally didactyl posture

Scientific Reports; Año: 2023 vol. 13

NICOLI, LAURA; MUZZOPAPPA, PAULA; ESPINOZA, NAHUEL; MELCHOR, RICARDO

A new fossil species of Calyptocephalella (Anura: Australobatrachia) from the Miocene of northern Patagonia: Novel evidence of the broad past diversity of the genus

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Año: 2022 vol. 119

ESPINOZA, N.; MELCHOR, R.N.

Neogene paleoenvironmental evolution of the Northern Patagonian extra-Andean foreland basin, Argentina

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Año: 2021 vol. 112

CARDONATTO, M. CRISTINA; MELCHOR, RICARDO NESTOR

Environmental influence on burrow system features of a colonial and fossorial rodent: Implications for interpreting fossil tetrapod burrows

PALAIOS; Año: 2021 vol. 36 p. 225 - 245

BELTRÁN, MARISOL; BODNAR, JOSEFINA; MELCHOR, RICARDO

The genera Heidiphyllum and Dordrechtites, and associated fossil wood from the Triassic Ischichuca Formation, northwestern Argentina

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Año: 2021 vol. 107

MARCHETTI, LORENZO; BELVEDERE, MATTEO; VOIGT, SEBASTIAN; KLEIN, HENDRIK; CASTANERA, DIEGO; DÍAZ-MARTÍNEZ, IGNACIO; MARTY, DANIEL; XING, LIDA; FEOLA, SILVERIO; MELCHOR, RICARDO N.

Reply to discussion of “Defining the morphological quality of fossil footprints. Problems and principles of preservation in tetrapod ichnology with examples from the Palaeozoic to the present” by Marchetti et al. (2019)

EARTH-SCIENCE REVIEWS; Año: 2020 vol. 208

ESPINOZA, N.; MELCHOR, R.N.; DEL PAPA, C.

Sand pipes in eolian deposits as recorders of Andean deformation in the Miocene Angastaco Formation, northwest Argentina

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Año: 2020 vol. 103

UMAZANO, ALDO M.; MELCHOR, RICARDO N.

Volcaniclastic sedimentation influenced by logjam breakups? An example from the Blanco River, Chile

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Año: 2020 vol. 98

MELCHOR, RICARDO N.; UCHMAN, ALFRED; STEEL, RONALD J.

Avian diversity and behavior in an Eocene coastal plain, Svalbard: the ichnological evidence

ICHNOS-AN INTERNATIONAL JOURNAL FOR PLANT AND ANIMAL TRACES; Año: 2020 p. 1 - 10

CARDONATTO, MARÍA CRISTINA; MELCHOR, RICARDO NÉSTOR

RECOGNITION OF FOSSIL NEBKHA DEPOSITS: CLUES FROM NEOICHNOLOGY AND SEDIMENTOLOGY

PALAIOS; Lugar: Lawrence; Año: 2020 p. 1 - 39

LAGNAOUI, ABDELOUAHED; MELCHOR, RICARDO N.; BELLOSI, EDUARDO S.; VILLEGAS, PABLO M.; ESPINOZA, NAHUEL; UMAZANO, ALDO M.

Middle Triassic Pentasauropus-dominated ichnofauna from western Gondwana: Ichnotaxonomy, palaeoenvironment, biostratigraphy and palaeobiogeography

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Año: 2019 vol. 524 p. 41 - 61

MELCHOR, RICARDO N.; RIVAROLA, DAVID L.; UMAZANO, ALDO MARTÍN; NALÍN MOYANO, MAGDALENA; MENDOZA BELMONTES, FÁTIMA R.

Elusive Cretaceous Gondwanan theropods: The footprint evidence from central Argentina

CRETACEOUS RESEARCH (PRINT); Año: 2019 vol. 97 p. 125 - 142

VILLEGAS, PABLO M.; UMAZANO, ALDO M.; MELCHOR, RICARDO N.; KATAOKA, KYOKO

Soft-sediment deformation structures in gravelly fluvial deposits: A record of Cretaceous seismic activity in Patagonia?

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Año: 2019 vol. 90 p. 325 - 337

MARCHETTI, LORENZO; BELVEDERE, MATTEO; VOIGT, SEBASTIAN; KLEIN, HENDRIK; CASTANERA, DIEGO; DÍAZ-MARTÍNEZ, IGNACIO; MARTY, DANIEL; XING, LIDA; FEOLA, SILVERIO; MELCHOR, RICARDO N.; FARLOW, JAMES O.

Defining the morphological quality of fossil footprints. Problems and principles of preservation in tetrapod ichnology with examples from the Palaeozoic to the present

EARTH-SCIENCE REVIEWS; Año: 2019 vol. 193 p. 109 - 145

MELCHOR, RICARDO N.; FEOLA, SILVERIO F.; DE BIANCO, TERESA MANERA

Canid Paleoichnology: Taxonomic Review and Producers of Canipeda from the Late Pleistocene of Argentina

ICHNOS-AN INTERNATIONAL JOURNAL FOR PLANT AND ANIMAL TRACES; Año: 2018 p. 1 - 23

MENDOZA BELMONTES, FATIMA; MELCHOR, RICARDO N.; PIACENTINI, LUIS N.

Wolf spider burrows from a modern saline sandflat in central Argentina: morphology, taphonomy and clues for recognition of fossil examples

PeerJ; Lugar: San Diego; Año: 2018 vol. 6 p. 1 - 26

CARDONATTO, MARÍA CRISTINA; MELCHOR, RICARDO NÉSTOR

Large mammal burrows in late Miocene calcic paleosols from central Argentina: Paleoenvironment, taphonomy and producers

PeerJ; Lugar: San Diego; Año: 2018 vol. 2018 p. 1 - 36

UMAZANO, A. MARTÍN; KRAUSE, J. MARCELO; BELLOSI, EDUARDO S.; PEREZ, MARIANO; VISCONTI, GRACIELA; MELCHOR, RICARDO N.

Changing fluvial styles in volcaniclastic successions: A cretaceous example from the Cerro Barcino Formation, Patagonia

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Año: 2017 vol. 77 p. 185 - 205

MARÍA CRISTINA CARDONATTO; RENATA SOSTILLO; GRACIELA VISCONTI; RICARDO NESTOR MELCHOR

The Celliforma ichnofacies in calcareous paleosols: an example from the late Miocene Cerro Azul Formation, La Pampa, Argentina

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2016 vol. 443 p. 203 - 215

SILVIA ARAMAYO; TERESA MANERA; NEREA BASTIANELLI; RICARDO NESTOR MELCHOR

Pehuen Co: Updated taxonomic review of a late Pleistocene ichnological site in Argentina

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2015 vol. 439 p. 144 - 165

RICARDO NESTOR MELCHOR

Application of vertebrate trace fossils to palaeoenvironmental analysis

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2015 vol. 439 p. 79 - 96

RICARDO NESTOR MELCHOR; MARIANO PEREZ; MARÍA CRISTINA CARDONATTO; ALDO MARTÍN UMAZANO

Late Miocene ground sloth footprints and their paleoenvironment: Megatherichnum oportoi revisited

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2015 vol. 439 p. 123 - 146

MELCHOR, RICARDO N.; BEDATOU, EMILIO; VERDE, MARIANO; LOOPE, DAVID

Contributions of ichnology to palaeoecology, palaeogeography, and sedimentology. A special issue related to the Second Latin-American Symposium on Ichnology (SLIC 2013)

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Año: 2015 vol. 439 p. 1 - 3

RICARDO NESTOR MELCHOR; MARÍA CRISTINA CARDONATTO

Insights on the behavior of Late Paleozoic aquatic crustaceans (Pygocephalomorpha?): Compound trace fossils from Western Argentina

ICHNOS-AN INTERNATIONAL JOURNAL FOR PLANT AND ANIMAL TRACES; Lugar: Londres; Año: 2014 vol. 21 p. 76 - 99

ALDO MARTÍN UMAZANO; RICARDO NESTOR MELCHOR; EMILIO BEDATOU; SERGIO EDUARDO BELLOSI; JAVIER MARCELO KRAUSE

Fluvial response to sudden input of pyroclastic sediments during the 2008e2009 eruption of the Chait
en Volcano (Chile): The role of logjams

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Lugar: Amsterdam; Año: 2014 vol. 54 p. 140 - 157

RICARDO NESTOR MELCHOR; ROBERT BUCHWALDT; SAM BOWRING

A Late Eocene date for Late Triassic bird tracks

NATURE; Lugar: Londres; Año: 2013 vol. 495 p. 1 - 2

JORGE FERNANDO GENISE; RICARDO NESTOR MELCHOR; MARÍA VICTORIA SÁNCHEZ; MIRTA GONZÁLEZ

Attaichnus kuenzelii revisited: a Miocene record of fungus-growing ants from Argentina

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2013 vol. 386 p. 349 - 363

HAROLDO VIZÁN; SILVANA GEUNA; RICARDO NESTOR MELCHOR; EDUARDO SERGIO BELLOSI; SILVIA LAGORIO; CARLOS VÁSQUEZ; MARÍA SILVIA JAPAS; GUILLERMO RÉ; MARGARITA DO CAMPO

Geological setting and paleomagnetism of the Eocene red beds of Laguna Brava Formation (Quebrada Santo Domingo, northwestern Argentina)

TECTONOPHYSICS; Lugar: Amsterdam; Año: 2013 vol. 583 p. 105 - 123

RICARDO NESTOR MELCHOR; CRISTINA CARDONATTO, MARÍA; GRACIELA VISCONTI

Palaeonvironmental and palaeoecological significance of flamingo-like footprints in shallow-lacustrine rocks: An example from the Oligocene?Miocene Vinchina Formation, Argentina

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2012 vol. 315 p. 181 - 198

RICARDO NESTOR MELCHOR; JORGE FERNANDO GENISE; ALDO MARTÍN UMAZANO; MARIELLA SUPERINA

Pink fairy armadillo meniscate burrows and ichnofabrics from Miocene and Holocene interdune deposits of Argentina: Palaeoenvironmental and palaeoecological significance

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2012 vol. 350 p. 149 - 170

ALDO MARTÍN UMAZANO; EDUARDO SERGIO BELLOSI; GRACIELA VISCONTI; RICARDO NESTOR MELCHOR

Detecting allocyclic signals in volcaniclastic fluvial successions: facies, architecture and stacking pattern from the Cretaceous of central Patagonia, Argentina

JOURNAL OF SOUTH AMERICAN EARTH SCIENCES; Lugar: Amsterdam; Año: 2012 vol. 40 p. 94 - 115

RICARDO NESTOR MELCHOR; JORGE FERNANDO GENISE; JUAN D. FARINA; MARÍA VICTORIA SÁNCHEZ; LAURA SARZETTI; GRACIELA VISCONTI

Large striated burrows from fluvial deposits of the Neogene Vinchina Formation, La Rioja, Argentina: A crab origin suggested by neoichnology and sedimentology

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Año: 2010 vol. 291 p. 400 - 418

RICARDO NESTOR MELCHOR; RICHARD BROMLEY; EMILIO BEDATOU

Spongeliomorpha in nonmarine settings: an ichnotaxonomic approach.

EARTH AND ENVIRONMENTAL SCIENCE TRANSACTIONS OF THE ROYAL SOCIETY OF EDINBURGH; Año: 2010 vol. 100 p. 429 - 436

GRACIELA VISCONTI; RICARDO NESTOR MELCHOR; ALDO MARTÍN UMAZANO; CLAUDIA MONTALVO; ELENA DE ELORRIAGA

Análisis litoestratigràfico de la Formación Cerro Azul (Mioceno superior) en la provincia de La Pampa

Revista Asociación Geológica Argentina; Lugar: Buenos Aires; Año: 2010 vol. 67 p. 257 - 265

ALDO MARTÍN UMAZANO; SANTIAGO BERNARDINO GIAI; RICARDO NESTOR MELCHOR; MIRTA GONZÁLEZ; SILVIA CRISTINA GRILL; GRACIELA VISCONTI

Paleosuelos y depósitos lacustres en el manto de arena del Pleistoceno superior-Holoceno en el centro de La Pampa, Argentina: Significado paleoambiental y paleoclimático

Revista de la Sociedad Geológica de España; Lugar: Salamanca; Año: 2010 vol. 23 p. 89 - 99

JORGE FERNANDO GENISE; RICARDO NESTOR MELCHOR; MIGUEL ARCHANGELSKY; LUIS O. BALA; ROBERTO STRANECK; SILVINA DE VALAIS

Application of neoichnological studies to behavioural and taphonomic interpretation of fossil bird-like tracks from lacustrine settings: the Late Triassic-Early Jurassic? Santo Domingo Formation, Argentina

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2009 vol. 272 p. 143 - 161

RICARDO NESTOR MELCHOR

Bird tracks preserved in fluvial channel facies of the Río Negro Formation (Neogene), La Pampa Province, Argentina

AMEGHINIANA; Lugar: Buenos Aires; Año: 2009 vol. 46 p. 209 - 214

EMILIO BEDATOU; RICARDO NESTOR MELCHOR; JORGE FERNANDO GENISE

Complex palaeosol ichnofabrics from Late Jurassic - Early Cretaceous volcaniclastic successions of Central Patagonia, Argentina

SEDIMENTARY GEOLOGY; Lugar: Amsterdam; Año: 2009 vol. 218 p. 74 - 102

ALDO MARTÍN UMAZANO; SERGIO EDUARDO BELLOSI; GRACIELA VISCONTI; GUILLERMO JALFIN; RICARDO NESTOR MELCHOR

Sedimentary record of a Late Cretaceous volcanic arc in central Patagonia: petrography, geochemistry and provenance of fluvial volcaniclastic deposits of the Bajo Barreal Formation, San Jorge Basin, Argentina

CRETACEOUS RESEARCH (PRINT); Lugar: Amsterdam; Año: 2009 vol. 30 p. 749 - 766

EMILIO BEDATOU; RICARDO NESTOR MELCHOR; SERGIO EDUARDO BELLOSI; JORGE FERNANDO GENISE

Crayfish burrows from Late Jurassic–Late Cretaceous continental deposits of Patagonia: Argentina. Their palaeoecological, palaeoclimatic and palaeobiogeographical significance

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2008 vol. 257 p. 169 - 184

ALDO MARTÍN UMAZANO; SERGIO EDUARDO BELLOSI; GRACIELA VISCONTI; RICARDO NESTOR MELCHOR

Mechanisms of aggradation in fluvial systems influenced by explosive volcanism: An example from the Upper Cretaceous Bajo Barreal Formation, San Jorge Basin, Argentina

SEDIMENTARY GEOLOGY; Lugar: Amsterdam; Año: 2008 vol. 203 p. 213 - 228

CLAUDIA MONTALVO; RICARDO NESTOR MELCHOR; GRACIELA VISCONTI; ESPERANZA CERDEÑO

Vertebrate taphonomy in loess-paleosol deposits: A case study from the late Miocene of Central Argentina

GEOBIOS; Lugar: Amsterdam; Año: 2008 vol. 41 p. 133 - 143

SILVINA DE VALAIS; RICARDO NESTOR MELCHOR

Ichnotaxonomy of bird-like footprints: an example from the Late Triassic-Early Jurassic of northwest Argentina.

JOURNAL OF VERTEBRATE PALEONTOLOGY; Lugar: Deerfield, Illinois; Año: 2008 vol. 28 p. 145 - 159

JORGE FERNANDO GENISE; EMILIO BEDATOU; RICARDO NESTOR MELCHOR

Terrestrial crustacean breeding trace fossils from the Cretaceous of Patagonia (Argentina): Palaeobiological and evolutionary significance

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2008 vol. 264 p. 128 - 139

JORGE FERNANDO GENISE; RICARDO NESTOR MELCHOR; SERGIO EDUARDO BELLOSI; MIRTA GONZÁLEZ; JAVIER MARCELO KRAUSE

New insect pupation chambers (Pupichnia) from the Late Cretaceous of Patagonia (Argentina)

CRETACEOUS RESEARCH (PRINT); Lugar: Amsterdam; Año: 2007 vol. 28 p. 545 - 559

RICARDO NESTOR MELCHOR

Changing lake dynamics and sequence stratigraphy of synrift lacustrine strata in a half-graben: an example from the Triassic Ischigualasto–Villa Unio´n Basin, Argentina

SEDIMENTOLOGY; Lugar: Oxford; Año: 2007 vol. 54 p. 1417 - 1446

RICHARD BROMLEY; LUIS BUATOIS; JORGE FERNANDO GENISE; CONRAD LABANDEIRA; M. GABRIELA MÁNGANO; RICARDO NESTOR MELCHOR; MICHAEL SCHLIRF; ALFRED UCHMAN

"Reconnaissance of Upper Jurassic Morrison Formation ichnofossils, Rocky Mountain Region, USA: Paleoenvironmental, stratigraphic, and palaeoclimatic significance of terrestrial and freshwater ichnocoenoses" (discussion).

SEDIMENTARY GEOLOGY; Lugar: Amsterdam; Año: 2007 vol. 200 p. 141 - 150

RICARDO NESTOR MELCHOR; SILVINA DE VALAIS,

A review of the Triassic tetrapod track assemblages from Argentina

PALAEONTOLOGY; Lugar: London; Año: 2006 vol. 49 p. 355 - 379

RICARDO NESTOR MELCHOR; EMILIO BEDATOU,; SILVINA DE VALAIS,; JORGE FERNANDO GENISE

Lithofacies distribution of invertebrate and vertébrate trace-fossil assemblages in an Early Mesozoic ephemeral fluvio-lacustrine system from Argentina: Implications for the Scoyenia ichnofacies

PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY; Lugar: Amsterdam; Año: 2006 vol. 239 p. 253 - 285

RENATA TOMEZZOLI,; RICARDO NESTOR MELCHOR; WILLIAM MACDONALD,

Tectonic implications of post-folding Permian magnetizations in the Carapacha Basin, La Pampa province, Argentina

EARTH PLANETS AND SPACE; Lugar: Tokyo; Año: 2006 vol. 58 p. 1235 - 1246

F GENISE, JORGE; SERGIO BELLOSI, EDUARDO; RICARDO NESTOR MELCHOR; MARCELA COSARINSKY,

Advanced Early Jurassic termite (Insecta: Isoptera) nests: Evidence from the Clarens Formation in the Tuli Basin, southern Africa (discussion)

PALAIOS; Lugar: Lawrence, Kansas, USA; Año: 2005 vol. 20 p. 302 - 311

RICARDO NESTOR MELCHOR; SWITHIN SARJEANT, WILLIAM ANTHONY

Small amphibian and reptile footprints from the Permian Carapacha Basin, Argentina

Ichnos; Lugar: Londres; Año: 2004 vol. 11 p. 57 - 78

MARTINS NETO, RAFAEL; F GALLEGO, OSCAR; RICARDO NESTOR MELCHOR

The Triassic insect fauna from South America (Argentina, Brazil, and Chile): A checklist (except Blattoptera and Coleoptera) and description of new taxa

Acta Zoologica Cracoviensa; Lugar: Krakov; Año: 2003 vol. 46 p. 229 - 256

RICARDO NESTOR MELCHOR; SERGIO BELLOSI, EDUARDO; F GENISE, JORGE

Invertebrate and vertebrate trace fossils from a Triassic lacustrine delta: The Los Rastros Formation, Ischigualasto Provincial Park, San Juan, Argentina.

PUBLICACION ESPECIAL - ASOCIACION PALEONTOLOGICA ARGENTINA; Lugar: Buenos Aires; Año: 2003 vol. 9 p. 17 - 33

SILVINA DE VALAIS,; RICARDO NESTOR MELCHOR; F GENISE, JORGE

Hexapodichnus casamiquelai isp. nov.: an insect trackway from the La Matilde Formation (Middle Jurassic), Santa Cruz, Argentina. Argentina.

PUBLICACION ESPECIAL - ASOCIACION PALEONTOLOGICA ARGENTINA; Lugar: Buenos Aires; Año: 2003 vol. 9 p. 35 - 41

RICARDO NESTOR MELCHOR; F GENISE, JORGE; E MIQUEL, SERGIO

Ichnology, Sedimentology And Paleontology Of Eocene Calcareous Paleosols From A Palustrine Sequence, South West La Pampa, Central Argentina.

PALAIOS; Lugar: Lawrence, Kansas, USA; Año: 2002 vol. 17 p. 16 - 35

RICARDO NESTOR MELCHOR; SILVINA DE VALAIS,; F GENISE, JORGE

Bird-like footprints from the Late Triassic

NATURE; Lugar: Oxford; Año: 2002 vol. 417 p. 936 - 938

RICARDO NESTOR MELCHOR; F GENISE, JORGE; MARIANO VERDE,

Invertebrate trace fossils from Triassic continental sequences of San Juan province, Argentina.

PUBLICACION ESPECIAL - ASOCIACION PALEONTOLOGICA ARGENTINA; Lugar: Buenos Aires; Año: 2001 vol. 7 p. 127 - 131

RICARDO NESTOR MELCHOR

Permian tetrapod footprints from Argentina

Hallesches Jahrbuch Für Geowissenschaften; Lugar: Halle (Alemania); Año: 2001 vol. B23 p. 35 - 43

RICARDO NESTOR MELCHOR; RAFAEL HERBST,

Sedimentology of the El Puquén Formation (Upper Triassic, Central Chile) and the new plant Mollesia melendeziae nov. gen. et sp. (Pteridophylla, incertae sedis)Pteridophylla, incertae sedis)

AMEGHINIANA; Lugar: Buenos Aires; Año: 2000 vol. 37 p. 477 - 486

F GALLEGO, OSCAR; RICARDO NESTOR MELCHOR

La Familia Ulugkemiidae Novozhilov, 1958 (Conchostraca) en el Triásico de Argentina: implicancias paleobiogeográficas.

AMEGHINIANA; Lugar: Buenos Aires; Año: 2000 vol. 37 p. 47 - 51

ALEXANDRA CRISAFULI,; ALICIA LUTZ,; RICARDO NESTOR MELCHOR

Maderas gimnospérmicas de la Formación Carapacha (Pérmico), Provincia de La Pampa, Argentina.

AMEGHINIANA; Lugar: Buenos Aires; Año: 2000 vol. 37 p. 181 - 191

RICARDO NESTOR MELCHOR

Stratigraphic and biostratigraphic consequences of a new 40Ar/39Ar age for the base of the Cochicó Group (Permian), Eastern Permian Basin, San Rafael, Mendoza, Argentina

AMEGHINIANA; Lugar: Buenos Aires; Año: 2000 vol. 37 p. 271 - 282

RICARDO NESTOR MELCHOR

Redefinición estratigráfica de la Formación Carapacha (Pérmico), Provincia de La Pampa, Argentina.

Revista de La Asociación Geológica Argentina; Lugar: Buenos Aires; Año: 1999 vol. 54 p. 99 - 108

MARIA ZAVATTIERI, ANA; RICARDO NESTOR MELCHOR

Estudio palinológico preliminar de la Fm. Ischichuca (Triásico), en su localidad tipo (Quebrada de Ischichuca Chica), provincia de La Rioja, Argentina.

PUBLICACION ESPECIAL - ASOCIACION PALEONTOLOGICA ARGENTINA; Lugar: Buenos Aires; Año: 1999 vol. 6 p. 33 - 38

RAFAEL HERBST,; A TRONCOSO,; RICARDO NESTOR MELCHOR

Las Pteridophyta y el paleoambiente de la parte media de la Formación La Ternera (Triásico Superior)en Quebrada La Cachivarita, III Región, Chile

Revista Geológica de Chile; Lugar: Santiago de Chile; Año: 1998 vol. 25 p. 85 - 107

RICARDO NESTOR MELCHOR; NÉLIDA CÉSARI, SILVIA

Permian Floras from Carapacha Basin, La Pampa province, central Argentina. Description and importance.

GEOBIOS; Lugar: Lyon; Año: 1997 vol. 30 p. 607 - 633

RICARDO NESTOR MELCHOR; NÉLIDA CÉSARI, SILVIA

Algunos elementos paleoflorísticos de la Formación Carapacha (Pérmico inferior), provincia de La Pampa, República Argentina.

AMEGHINIANA; Lugar: Buenos Aires; Año: 1991 vol. 28 p. 347 - 352