Mercedes di Pasquo received her PhD in 1999 from the University of Buenos Aires (UBA) in Argentina and in 2002, she became a permanent researcher of CONICET. She was a teacher at UBA between 1988 and 2008, of the semestral courses of Paleontology and Palynostratigraphy, Careers of Geology and Biology (up to 2008), and Micropaleontology of the Career of Paleontology (2005_2008).


In 2009, she was a Fulbright Research Fellow at the University of Idaho. Since 2010 she has been an affiliate associate professor in the Department of Geological Sciences, University of Idaho (Moscow, Idaho, USA), collaborating on the study of Upper Palaeozoic palynofloral changes in Bolivia and Argentina during the Gondwanaland glaciation.


Since 2010 Dr. Mercedes di Pasquo is working at the CICYTTP - CONICET, Diamante, Entre Ríos, Argentina, as Senior Researcher CONICET (Investigadora Independiente), in charge of the Laboratory of Palynostratigraphy and Paleobotany at the Institute CICyTTP-Diamante. If you want to know more about her work please go to Publicaciones in this website (to download publications from "Publicaciones" in this website please contact M. di Pasquo for username and password) and see and and


            Since her PhD (1994-1999) her work focused in Late Paleozoic units of Argentina, Bolivia and Peru, with the goal of establishing palynological- based ages for strata that have poor or no megafossil content (e.g. di Pasquo, 2002, 2003, 2009, 2007; di Pasquo et al. 2014, 2015). Inasmuch as many of these units (especially in the Carboniferous of southern Bolivia) are siliciclastics, careful examination of fine-grained units provides palynomorphs for correlation purposes. This is especially important for Late Devonian units from the Pando and Manuripi (Bolivia) cores and other glacially-influenced outcrops of Silurian to Carboniferous in Bolivia and northern Argentina.


            After her stay in 2009 as Fulbright Fellow working with Dr. Peter Isaacson at the Department of Geological Sciences, University of Idaho (Moscow, Idaho, USA), she became Affiliate Associate Professor since 2010 (not tenure-track position). Later, he stay three months at the CICYTTP during his sabbatical time in 2011, and Audrey Warren (Dr. Peter Isaacson´s master student) spent july 2014 to work on Late Devonian (including the Strunian with Retispora lepidophyta) and Lower Carboniferous palynofloras from Montana (USA). Currently, we are working together in the recovery of both conodonts and palynomorphs from the D/C boundary in Montana along with PhD (Beverly Rice) and Master students (di Pasquo et al. 2012, 2017; Isaacson et al., 2013, 2014; Warren et al., 2014; Rice et al. 2016, 2017).


            In Brazil, she participated as Victoria Valdez´s co-supervisor (2012-2015), together with Dr. Paim (UNISINOS, Sao Leopoldo, Brazil), contributing with her with Carboniferous palynostratigraphic data for her geological study of several locations of the Precordillera Argentina.


            During 2013 she was awarded as Special Foreign Researcher in the framework of the Brazilian Program “Science without borders” CNPq (2013-2014), “Carboniferous and Permian palynofloras of the Paraná Basin and its comparison to South American basins”, and she worked at the UFRGS (Porto Alegre, Brazil) on the the Serra Alta and Teresina formations (di Pasquo and Souza, 2014, in prep.). This was related to several contributions on the Permian and Carboniferous of Bolivia and Argentine (e.g. di Pasquo et al. 2015, 2017).


Further contributions deal with:

1- Upper Palaeozoic (Devonian-Carboniferous) palynofloral changes in Bolivia and Argentina during the Gondwanaland glaciation (e.g. di Pasquo and Anderson, 2012; Noetinger and di Pasquo, 2013, 2014; di Pasquo et al. 2012, 2013, 2014; Milana et al. 2014; Valdez et al., 2014, Wood et al., 2014, see also reference list).

2- Mid-Late Devonian Haplostigma flora deposits bearing palynofloral and invertebrates associated and interbedded from Bolivia and northern Argentina in collaboration with several colleagues (di Pasquo et al., 2013; di Pasquo, 2013). She was collaborating with W. Matsumura (PhD student at UFRGS) and R. Iannuzzi (supervisor), carrying on the analysis of the palynoassemblages associated to the Mid-late Devonian floras (especially with Haplostigma) from the Paraná Basin (Brazil). This flora is correlated to the Bolivia and northern Argentina ones (Matsumura et al., 2014, 2015).

3- Palynology and paleobotany of the Mississippian Poti Formation of northeastern Brazil (di Pasquo and Iannuzzi, 2014)

4- Palynofloras from the Early Maastrichtian of Antarctica, which are associated to several invertebrates and vertebrates from the same section at The Naze (di Pasquo and Martin 2013).

5- the Siluro-Devonian of La Paz area in Bolivia with Shirley Lopez from Bolivia and Udo Zimmermann from Norway (Zimmermann et al. 2015 a, b).

6- D-C boundary of Montana region in USA (di Pasquo et al., 2012, 2017 and many abstracts).


            She is/was mentor of PhD students working on different projects such as the Quaternary palynofloras of Entre Ríos with Drs. Nadia Muñoz and Noelia Nuñez (since 2010), the Miocene-Pliocene of Peru (Francisco Navarrete, since 2013), the Cretaceous – Paleocene from northern Río Negro and eastern Neuquén (Neuquen Basin) Argentina (Egly Pérez Pincheira, since 2015), the evolution of megaspory in the Devonian and Carboniferous of Bolivia and Argentina (Marcela Quetglas, since 2016), among others.           


She is President of the ALPP (Asociación Latinoamericana de Paleobotánica y Palinología) for a third period 2017-2020 (


She collaborated in the organization of several congresses:

1-      the XVI Simposio Argentino de Paleobotánica y Palinología, which was held at La Plata city (Buenos Aires Province, Argentina), in may 26th to 29th 2015.

2-      the IPC / IOPC 2016 "Palaeobotany and Palynology: towards new frontiers", as coordinator of Symposiums “New insights on associated Paleozoic to Cenozoic floras” and “Palynofloras from Gondwana”, and presented several contributions in November 2016.

3-      XVII Symposium of Paleobotany and Palynology 2018, which will be held in the Paraná city, in july-august 2018, Responsible of the Committee.


            She worked as consultant for the oil industry contributing on palynostratigraphy and palaeoenvironment from different intervals of the Phanerozoic in South America.



Special Publications

  – Asociación Geológica Argentina

 Biostratigraphy of the Upper Palaeozoic of South America: first step to a new chronostratigraphic proposal (Bioestratigrafia del Paleozoico Superior de América del Sur: Primera Etapa de Trabajo Hacia una Nueva Propuesta Cronoestratigráfica)













An important achievement of the Working Group on Upper
Palaeozoic Chronostratigraphy of South America that would be published soon (Azcuy et al., 2007), is the first result of the following meetings: The 1st Meeting of the Upper Palaeozoic Chronostratigraphy Committee of South America, held within the framework of the XI Reunião de Paleobotânicos e Palinólogos (Gramado, Brazil, 2004), included researchers from Argentina, Brazil and Uruguay and was coordinated by Carlos Azcuy. The meeting constituted the first step to discuss and establish a regional chronostratigraphic scheme of the Upper Paleozoic of South America. The current scheme established in Western Europe, Russia and North America has been defined using fossil associations that are not common to the region of Gondwana. All of the participants agreed that the best way to establish a regional chronostratigraphy would be by synthesizing all systematical, palaeontological, and radiometrical works of Upper Palaeozoic basins from South America. It was agreed to divide the task among the participants with Dr. Carlos Azcuy, as Lead Coordinator. The first results of the project were discussed in the framework of the XIII Simposio Argentino de Paleobotánica y Palinología (Bahía Blanca, Argentina, 2006). The biostratigraphical units established for the different basins of South America as well as other data (more isolated and new information) are updated and discussed and a correlation chart is supported by a list of selected references.


A summary of this work was presented in the 4º European Meeting on Paleontology and Stratigraphy of Latin American, held in Madrid on September 2007 (see above Azcuy et al., 2007).


 2007. Azcuy, C., Beri, A., Bernardes-deOliveira, M.E.C., Carrizo, H.A., di Pasquo, M., Díaz-Saravia, P., González, C., Ianuzzi, R., Lemos, V.B., Melo, J.H.G., Pagani, A., Rohn, R., R. Amenábar, C., Sabattini, N., Souza, P.A., Taboada, A., Vergel, M.M. Biostratigraphy of the Upper Palaeozoic of South America: first step to a new chronostratigraphic proposal (Bioestratigrafia del Paleozoico Superior de América del Sur: Primera Etapa de Trabajo Hacia una Nueva Propuesta Cronoestratigráfica). Asociación Geológica Argentina, Serie: Publicación Especial Nº 11: 9- 65.

          To download this publication from "Publicaciones" in this website please contact M. di Pasquo for username and password.


News in Newsletters


2007. di Pasquo, M.M. News from Argentina and Update and importance of the Early Carboniferous palynological records of the Tarija Basin. CIMP, Newsletter No. 71 (summer).


2006. Cecilia R. Amenábar. Early Carboniferous palynofloras from the western Argentina. En CIMP Newsletter Summer 2006, No. 65: 1-38 en Spores and Pollen, p. 35.

2004. Cecilia Rodríguez Amenábar. Palynology of the Devonian and Carboniferous rocks of Uspallata-Iglesia and Paganzo basins, northwestern Argentina. En CIMP Newsletter Winter 2004, No. 65: 1-38 en Spores and Pollen, sección PhD theses p. 35.


Ph.D. News


Sol Noetinger (, biologist from the Buenos Aires University (UBA), Buenos Aires, Argentina.  During her undergraduate studies she collaborated in different areas of botany and time periods like Mesozoic and recent. Her main research interests are Devonian palynology, stratigraphy, palaeobotany, and palaeoecology of the north-western Argentinean basins.



    She has defend her Ph.D (27-05-2011) on “Studies of palynoassemblages and megaflora from the Devonian of southern Tarija basin, Northern Argentina and southern Bolivia: age, correlation and palaeoenvironment of deposition”, under the supervision of Dr. Mercedes di Pasquo at the University of Buenos Aires. She is currently working as Junior Researcher of CONICET at the Museo Argentino de Ciencias Naturales (MACN) since 2012 to improve the knowledge of palaeoecological scenario added to the stratigraphic and chronological information of the Middle Palaeozoic Tarija Basin (north of Argentina).


    Both SN and MdP are extending the study of Devonian palynofloras from the Zenta range, Jujuy Province, Argentina, to the Silurian deposits supported by a grant from the National Research Council of Argentina (CONICET) under the direction of Dr. M. di Pasquo (PIP 00305 2011-2013- ESTUDIO PALINOESTRATIGRÁFICO Y PALEOBIOGEOGRÁFICO DE ROCAS DEL PALEOZOICO SUPERIOR DE BOLIVIA Y SU APLICACIÓN EN EL REFINAMIENTO DE SUS CORRELACIONES ESTRATIGRÁFICAS).


Cecilia Rodríguez Amenábar has defended her Ph.D. theses, titled “Palynostratigraphy and palaeoenvironment of the Chigua (Chinguillos Group, Devonian), Malimán and El Ratón (Angualasto Group, Lower Carboniferous) formations, Uspallata-Iglesia Basin. Comparison and correlation with other palynofloras and characterization of the Devonian-Carboniferous boundary in the region”, on june 21st at the FCEN-UBA.

She is currently working on the Late Cretaceous microfloras of the Sanctuary Cliff Formation in the Snow Hill Island, James Ross Basin, Antarctica Argentina. This research is carried on the framework of the PICTO (2005) 36166 project and supported by a grant from the National Research Council of Argentina (CONICET), Post-Doctoral position under the supervising of M. di Pasquo and A. Concheyro. A first result was presented in the "9º Congreso Argentino de Paleontología y Bioestratigrafía”, held in Córdoba (september 18–22th 2006).





Members of the Palynostratigraphy and Paleobotany Laboratory (PPL) were involved in several projects (see below). These projects deal with taxonomical issues on palynology and palaeobotany that will allow to improve the comparison and correlation of mega and microfloras occurring from the Devonian to the Permian basins such as Madre de Dios (Bolivia), Tarija (southern Bolivia and northern Argentina), Uspallata/Iglesia, Paganzo, San Rafael (western Argentina) and Paraná (Brazil). Another project involves the palynologic and micropaleontologic studies on the Cretaceous and Tertiary in the James Ross Basin, Antarctica Argentina.

All these researches contribute to the knowledge on the diastrophic and paleoclimatic events that generated unconformities in those places from western Gondwana. These projects consider the formation of human resources through the accomplishment of doctoral theses, post-doctoral works, final degree works and also, of the production of a scientific work with students.




UBACyT Nº X 428. "Estudio de las microfloras y megafloras del Devónico en las cuencas del oeste y noroeste de Argentina y sur de Bolivia. Su importancia en la evolución paleoflorística, paleobiogeográfica y paleoclimática basada en la comparación con otras floras coetáneas de Gondwana y del resto del mundo." Responsable: Mercedes di Pasquo. Staff: Cecilia R. Amenábar; Sol Noetinger. Period: 2008- 2010




PICTR2004-00313/03 - "BIODIVERSIDAD DE LAS DE TAFOFLORAS Y FAUNAS DE INVERTEBRADOS EN CUENCAS NEOPALEOZOICAS ARGENTINAS Y DEL SUR DE AMERICA DEL SUR: SISTEMATICA, BIOESTRATIGRAFIA Y CORRELACION". Period: 2005-2008. Project (AGENCIA). Responsable: Azcuy, Carlos Leopoldo. Investigadores del Grupo responsable: M. di Pasquo, P. Pazos, M. Vergel, H. Carrizo. UBA-FCEN and Fundación Miguel Lillo. Staff:: Cecilia R. Amenábar, Sol Noetinger, Gustavo Holfeltz..


PIP 5518 (CONICET). “ESTUDIO DE MICROFLORAS (Y MEGAFLORAS) DEL DEVONICO Y CARBONIFERO DEL OESTE Y NOROESTE ARGENTINO Y DE OTRAS CUENCAS DEL SUR DE AMERICA DEL SUR”. Responsable: M. di Pasquo. Staff: Cecilia R. Amenábar, Pablo Pazos, Sol Noetinger, Gustavo Holfeltz. Institutions: UBA-CONICET. Período: 2005-2007.


PICTO (2005) 36166 AGENCIA - ESTUDIO PALEOBIOGEOGRAFICO DE LAS MICROBIOTAS DEL CRETÁCICO SUPERIOR Y CENOZOICO DE LA PLA. ANTÁRTICA Y REGIONES ADYACENTES. MODIFICACIONES EN SU DISTRIBUCIÓN VINCULADAS A CAMBIOS CLIMÁTICOS. Directora: Andrea Concheyro. Período: 2007-2009. Investigadores del grupo responsable: Dras. Sara Ballent, Mercedes di Pasquo, Teresita Montenegro, Flavia Salani. Investigadores integrantes: Dra. Cecilia R. Amenábar, Lics. Susana Adamonis, Juan Manuel Lirio, Marina Lescano, Alfredo Ambrosio. Institutions: UBA-FCEN-IAA.


Foreign projects

- CNPq- PROGRAMA ESPECIAL DE COOPERACAO INTERNACIONAL/PECI – CIENCIA SEM FRONTERA- 2012- Beca Linha 2 – Bolsa Pesquisador Visitante Especial (PVE otorgada a M. di Pasquo). Coordinador: Dr. Paulo Alves de Souza. Processo: 402873/2012-2. Projeto: Palinoestratigrafia do intervalo Pensilvaniano-Permiano da Bacia do Paraná no Brasil e seus depósitos correlatos na Argentina e Uruguai. Período del subsidio: 2013-2015.

Proyecto Prosul 2011 -401769/2010-0 - Análise palinoestratigráfica do intervalo Pensilvaniano-Permiano no setor sul da Bacia do Paraná (Brasil, Argentina e Uruguai). Director: Paulo A. Souza. Participo como investigadora extranjera. Edital MCT/CNPq nº 032/2010 - Fortalecimento da Paleontologia Nacional. Período 2011-2013.

- BG 01 PROJECT (BG Energy Holdings Limited), a cargo del Dr. Ben Kneller (University of Aberdeen, Scotland), en conjunto con el Dr. Carlos Paim (UNISINOS, Sao Leopoldo, Brasil). Título del proyecto: CARBONIFEROUS DEGLACIAL RECORD IN THE PARANÁ BASIN AND ITS ANALOG IN THE PAGANZO BASIN OF ARGENTINA: IMPACTS ON RESERVOIR PREDICTION IN THE PARANÁ BASIN. Participo como investigadora extranjera asistiendo en el estudio palinológico especialmente de la cuenca Paganzo para la Lic. Victoria Valdez (Becaria de Maestrado en UNISINOS, POA). Período: 20012-2014. Publicaciones en progreso.


CGL2006-07376/TE (20/7/2006): “REGISTRO SEDIMENTARIO DE CAMBIOS CLIMÁTICOS EN EL CARBONÍFERO DE BOLIVIA: BIOESTRATIGRAFÍA Y AMBIENTES SEDIMENTARIOS”. Responsable. Enrique Díaz Martínez. Staff: Mercedes di Pasquo, Roberto Iannuzzi, Paulo Souza, Peter Isaacson, Oscar Arispe, Shirley Lopez, George Grader. Dirección de Geología y Geofísica. Institutions: Instituto Geológico y Minero de España. Period: 2006-2009


REDE SUL-AMERICANA DE COLEÇOES E ENSINO EM PALEOBOTANICA Y PALINOLOGIA (2007-2009). This project RESCEPP deal with the information about paleontological collections that are useful both for reseaching and teaching and most important, they are needed to preserve our paleontological “patrimonio” for our future generations. Coordinators: Paulo A. Souza, Roberto Iannuzzi, Tania Dutra (UFRGS). Staff: Cecília da Cunha Lana (PETROBRAS, Brasil), José Henrique Gonçalves de Melo (PETROBRAS, Brasil), Marcelo de Araújo Carvalho (UFRJ/Museu Nacional, Brasil), Maria Judite Garcia (UnG, Brasil), Rosemarie Rohn Davies (UNESP Rio Claro, Brasil), Aldo R. Prieto (Universidad Nacional de Mar del Plata, Argentina), Mercedes di Pasquo (Universidad Buenos Aires, Argentina), Luiza M. Anzótegui (Universidad Nacional del Nordeste, Argentina), Maria del Milagro Vergel (Fundación Miguel Lilo, Argentina), Mirta Quattrocchio (Universidad Nacional del Sur, Argentina), Ángeles Beri (UDELAR, Uruguai), Luis Mata Garcia (Petróleos de Venezuela SA, Venezuela).