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Rojas, A., Calatayud, J., Kowalewski, M. et al. 2021: A multiscale view of the Phanerozoic fossil record reveals the three major biotic transitions. Commun Biol 4, 309.

Calatayud, J., Neuman, M., Rojas, A., Eriksson, A., and Rosvall, M. 2021 Regularities in species’ niches reveal the world’s climate regions. eLife10, e58397 (2021). doi: 10.7554/eLife.58397

Eriksson, A., Edler, D., Rojas, A., and Rosvall, M. 2021: Mapping flows on hypergraphs. under review in Communications Physics (March 12, 2021). arXiv:2101.00656


Rojas, A., Gregory, P. D.,  Kowalewski, M., Roger W. P., Hendy, H., and Blackburn, J. K.  Spatial point pattern analysis of traces (SPPAT): an approach for visualizing and quantifying site-selectivity patterns of drilling predators. In press doi:10.1017/pab.2020.15

Rojas, A., Gracia, A., Hernández-Ávila, I., Patarroyo, P. and Kowalewski, M. Occurrence of the brachiopod Tichosina in deep-sea coral bottoms of the Caribbean Sea and its paleoenvironmental implications. bioRxiv 866186


Rojas, A., Calatayud, J., Kowalewski, M., Neuman, M., Rosvall, M. A multiscale view of the Phanerozoic fossil record reveals the three major biotic transitions. Under review

Calatayud, J., M. Neuman, A. Rojas, A. Eriksson, and M. Rosvall. 2019: Regularities in species niches reveal the World’s climatic regions. bioRxiv 851030; doi:

Joaquín, C., Bernardo, R., Neuman, M., Rojas, A., Rosvall, M., 2019: Exploring the solution landscape enables more reliable network community detection. Physical Review E 100:052308.


Rojas, A., Sandy, M. R., 2018: Early Cretaceous (Valanginian) brachiopods from the Rosablanca Formation, Colombia, South America: Biostratigraphic significance and paleogeographic implications. Cretaceous Research 96:184–195. doi: 10.1016/j.cretres.2018.12.011

Sandy, M. R., Rojas, A., 2018: Paleobiogeographic affinities, biostratigraphic potential, and taxonomy of Cretaceous Terebratulide brachiopods from Colombia. Geological Society of America Abstracts with Programs Vol. 50, 6.  doi: 10.1130/abs/2018AM-325121


Rojas, A., Patarroyo, P., Mao, L., Bengtson, P., and Kowalewski, M., 2017a, Global biogeography of Albian ammonoids: A network-based approach: Geology, v. 45, p. 659–662, doi: 10.1130/G38944.1.

Rojas, A., Portell, R.W., and Kowalewski, M., 2017b, The post-Palaeozoic fossil record of drilling predation on lingulide brachiopods: Lethaia, v. 50, p. 296–305, doi: 10.1111/let.12198.


Rojas, A., 2017, Mapping the unknown neighborhood: A simple approach combining traditional geological maps and remote sensing data. Geological Society of America Abstracts with Programs Vol. 48, 7. doi: 10.1130/abs/2017SE-291018


Rojas, A., Hendy, A., and Dietl, G., 2015a, Edge-drilling behavior in the predatory gastropod Notocochlis unifasciata (Lamarck, 1822) (Caenogastropoda, Naticidae) from the Pacific coast of Panama: taxonomic and biogeographical implications: Vita Malacologica, v. 13, p. 63–72.

Rojas, A., Gracia, A., and Patarroyo, P., 2015b, Brachiopods from off the San Bernardo Archipelago (Colombian Caribbean), with comments on specific synonymies in Tichosina, Cooper, 1977: Zootaxa, v. 3914, p. 55, doi: 10.11646/zootaxa.3914.1.3.

Oyuela-Caycedo, A., Jorge, G., and Rojas, A., 2015, Holocene paleoclimate reconstruction from δ18O isotopes of Neocyclotus opercula and a morphometric analysis of their variation at the archaic site of San Jacinto-1 Colombia. Society for American Archaeology Abstracts with Programs 107, 117. [tDAR id: 395000]


Schemm-Gregory, M., Rojas, A., Patarroyo, P., and Jaramillo, C., 2012, First report of Hadrosia Cooper, 1983 in South America and its biostratigraphical and palaeobiogeographical implications: Cretaceous Research, v. 34, p. 257–267, doi: 10.1016/j.cretres.2011.11.005.

Between 2009 and 2012 I worked for the Panama Geology Project -PIRE, a unique opportunity for understanding the impacts that the emergence of the Isthmus of Panama had on ancient marine and terrestrial biotas, presented by the Panama Canal expansion. Located at the Panama Canal Authority (ACP) facilities, I organized, curated, cataloged and imaged (all by myself!) a significant proportion of the more of 100.000 specimens recovered during the Panama Canal excavations, and coordinated their use for research. After that, I joined the Invertebrate Paleontology Division of the Florida Museum of Natural History as PhD student.


Vega, F., Nyborg, T., Kovalchuk, G., Etayo-Serna, F., Luque, J., Rojas, A., Patarroyo, P., Porras-Muzquiz, H., Armstrong, A., Bermúdez, H., and Garibay, L., 2010, On some Panamerican Cretaceous crabs (Decapoda: Raninoida): Revista Mexicana de Ciencias Geológicas, v. 62, p. 263–279.


Rojas, A., 2009, Fossils, sediments and strata: Darwin’s geological thinking: Boletin de la Sociedad Colombiana de Geologia, Geonotas No.3, p. 11–14

Rojas, A., and Patarroyo, P., 2009, Occurrence of Sellithyris sella (Brachiopoda) in the Rosablanca Fromation. Boyaca, Colombia: Boletín de Geologia, v. 31, p. 129–132.


Patarroyo, P., and Rojas, A., 2007, La sucesión y la fauna del Turoniano de la Formación San Rafael en Pesca y su comparación con la sección tipo en Samacá (Boyacá-Colombia-S.A.): Geologia Colombiana, v. 32, p. 89–96.

Vega, F., Nyborg, T., Rojas, A., Patarroyo, P., Luque, J., and Porras-Muzquiz, H., 2007, Upper Cretaceous Crustacea from Mexico and Colombia: Similar faunas and environments during Turonian times: Revista Mexicana de Ciencias Geológicas, v. 24, p. 403–422.