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Gaspar, A., Mateus O., & Almada F. (2007).  Os argumentos criacionistas em face da evidência científica. Evolução e Criacionismo: Uma Relação Impossível. 197-237., Lisboa: Quasi ed.gasparmateusealmada2007argumentosevo.pdf
Gaspar, A., Mateus O., & Almada F. (2007).  Os argumentos criacionistas em face da evidência científica. Evolução e Criacionismo: Uma Relação Impossível. 197-237., Lisboa Abstract
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Gaspar, A., Avelar T., & Mateus O. (2007).  Criacionismo e Sociedade no Séc. XX. (Avelar, T., O. Mateus, Almada, F., Gaspar, A., Ed.).Evolução e Criacionismo: Uma Relação Impossível. 133-160., Lisboa: Quasi ed. gasparavelarmateus2007evoluoecriacio.pdf
Gaspar, A., Avelar T., & Mateus O. (2007).  Criacionismo e Sociedade no Séc. XX.  Evolução e Criacionismo: Uma Relação Impossível. 133-160., Lisboa Abstract
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Graf, J., Jacobs L. L., Polcyn M. J., Mateus O., & Schulp A. S. (2011).  New fossil whales from Angola. 71st Annual Meeting of the Society of Vertebrate Paleontology. 119., Jan: Abstracts of the 71st Annual Meeting of the Society of Vertebrate Paleontologygraf_et_al_mateus_2011_fossil_whales_from_angola_svp11abstracts.pdf
Guillaume, A. R. D., Moreno-Azanza M., & Mateus O. (2018).  Microvertebrates from the Lourinhã Formation (Late Jurassic, Portugal). 1st Palaeontological Virtual Congress. online. Abstractguillaume-et-al_pvc2018_abstract.pdf

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Guillaume, A. R. D., Costa F., & Mateus O. (2022).  Stegosaur tracks from the Upper Jurassic of Portugal: new occurrences and perspectives. Ciências da Terra / Earth Sciences Journal. 20(1), 37-60. Abstractguillaumeetal.pdf

The record of Late Jurassic stegosaur tracks from the Lourinhã Formation (Kimmeridgian-Tithonian) is here revised. Thirty-eight dinosaur tracks, preserved as natural infill casts, are here reported, and thirty-two of them are attributed to the ichnogenus Deltapodus. Four of those present impressions of skin, with polygonal scales and random pattern. Deltapodus is the most common ichnogenus in the track record of the Lourinhã Formation. The sizes and shape suggest one single dacentrurine trackmaker, which could be Miragaia longicollum, also common in the same horizons.

Guillaume, A., Costa F., & Mateus O. (2017).  Skin impressions on stegosaur tracks from the Upper Jurassic of Portugal. Abstract book of the XV Encuentro de Jóvenes Investigadores en Paleontolog{\'ıa/XV Encontro de Jovens Investigadores em Paleontologia, Lisboa, 428 pp.. 191–195. Abstract
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Guillaume, A. R., Moreno-Azanza M., & Mateus O. (2019).  New lissamphibian material from the Lourinhã Formation (Late Jurassic, Portugal). Journal of Vertebrate Paleontology, Program and Abstracts. 112. Abstract
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Guillaume, A. R., Moreno-Azanza M., & Mateus O. (2019).  New lissamphibian material from the Lourinhã Formation (Late Jurassic, Portugal). Journal of Vertebrate Paleontology, Program and Abstracts. 112.guillaume_et_al_2019_svp_abstract.pdf
Guillaume, A. R. D., Natário C., Mateus O., & Moreno-Azanza M. (2022).  Plasticity in the morphology of the fused frontals of Albanerpetontidae (Lissamphibia; Allocaudata). Historical Biology. 1 - 18., 2022: Taylor & Francis Abstractplasticity_in_the_morphology_of_the_fused_frontals_of_albanerpetontidae_lissamphibia_allocaudata.pdfWebsite

ABSTRACTAlbanerpetontidae form an enigmatic extinct group of lissamphibians, ranging from the early Bathonian to the early Pleistocene. The Upper Jurassic outcrops of Portugal yield a large collection of material, suitable for addressing the intraspecific variation in and diagnostic potential of the characteristic fused frontals. We revise 58 specimens from the Guimarota beds of the Kimmeridgian Alcobaça Formation and describe 62 new frontal bones from the Kimmeridgian ? Tithonian Lourinh? Formation. Smaller specimens exhibit a vermicular dorsal ornamentation, while it is polygonal in larger specimens and other albanerpetontids. Compared to small specimens, larger specimens display: (1) larger ventrolateral crests extending posteriorly after the parietal margin; (2) a relatively shorter internasal process; (3) a frontal width across posterior edges relatively smaller; and (4) a ventromedian crest less pronounced. Morphometric analyses suggest a single species with different ontogenetic stages. Specimens are attributed to aff. Celtedens sp., based on a bell-shaped outline with a curved orbital margin (although variable in Portuguese specimens), and a flabellate, bulbous-shaped internasal process. The species is more similar to C. megacephalus than C. ibericus, but its phylogenetic position comprises an unresolved trichotomy. Our results show that intraspecific variation and homoplasy render the fused frontal non-diagnostic below the generic level.

Guillaume, A., Costa F., & Mateus O. (2017).  Skin impressions on stegosaur tracks from the Upper Jurassic of Portugal. Abstract book of the XV Encuentro de Jóvenes Investigadores en Paleontología/XV Encontro de Jovens Investigadores em Paleontologia, Lisboa, 428 pp.. 191-195. Abstractguillaume_2017_skin.pdf

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Guillaume, A. R. D., Natário C., Moreno-Azanza M., & Mateus O. (2021).  New occurences of Celtedens (Lissamphibia: Albanerpetontidae) from the Lourinhã Formation. XVIII Conference of the European Association of Vertebrate Palaeontologists. 87. Abstractguillaume_et_al_2021_celtedens.pdf

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Guillaume, A., Costa F., & Mateus O. (2017).  Skin impressions on stegosaur tracks from the Upper Jurassic of Portugal. 191–195. Abstract
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Guillaume, A. R. D., Moreno-Azanza M., Puértolas-Pascual E., & Mateus O. (2018).  Crocodylomorph teeth from the Lourinhã Formation, Portugal (Late Jurassic). XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 80., Caparica, Portugal June 26th-July 1st, 2018 Abstract

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Guillaume, A. R. D., Moreno-Azanza M., Puértolas-Pascual E., & Mateus O. (2018).  Crocodylomorph teeth from the Lourinhã Formation, Portugal (Late Jurassic). XVI Annual Meeting of the European Association of Vertebrate Palaeontologists. 80., Caparica, Portugal June 26th-July 1st, 2018 Abstractguillaume_et_al_2018_eavp_abstract.pdf

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Guillaume, A. R. D., Natário C., Moreno-Azanza M., & Mateus O. (2021).  New material ascribed to Albanerpetontidae (Lissamphibia; Allocaudata) from the Lourinhã Formation: evidence for intraspecific variation. XIX Encontro de Jovens Investigadores em Paleontologia. 50-51. Abstractguillaume_et_al_2021_albanerpetontidae.pdf

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Guillaume, A. R. D., Moreno-Azanza M., Puértolas-Pascual E., & Mateus O. (2020).  Palaeobiodiversity of crocodylomorphs from the Lourinhã Formation based on the tooth record: insights into the palaeoecology of the Late Jurassic of Portugal. Zoological Journal of the Linnean Society. 189(2), 549–583., 11 Abstractguillaume_et_al_palaeobiodiversity_of_crocodylomorphs_from_the.pdfWebsite

{Crocodylomorphs were a diverse clade in the Late Jurassic of Portugal, with six taxa reported to date. Here we describe 126 isolated teeth recovered by screen-washing of sediments from Valmitão (Lourinhã, Portugal, late Kimmeridgian–Tithonian), a vertebrate microfossil assemblage in which at least five distinct crocodylomorph taxa are represented. Ten morphotypes are described and attributed to five clades (Lusitanisuchus, Atoposauridae, Goniopholididae, Bernissartiidae and an undetermined mesoeucrocodylian). Four different ecomorphotypes are here proposed according to ecological niches and feeding behaviours: these correspond to a diet based on arthropods and small vertebrates (Lusitanisuchus and Atoposauridae), a generalist diet (Goniopholididae), a durophagous diet (Bernissartiidae) and a carnivorous diet. Lusitanisuchus mitracostatus material from Guimarota is here redescribed to achieve a better illustration and comparison with the new material.This assemblage shares similar ecomorphotypes with other Mesozoic west-central European localities, where a diversity of crocodylomorphs lived together, avoiding direct ecological competition through niche partitioning. The absence of large marine crocodylomorphs, present in other contemporaneous assemblages, is here interpreted as evidence that the Valmitão assemblage was deposited in a freshwater environment, although sample bias cannot be completely ruled out. These affinities are further supported by the presence of lanceolate and leaf-shaped teeth associated with continental clades.}