Ostracods of the Upper Toarcian (Jurassic) of Boca da Mata, Alvaiázere, Portugal: taxonomy and evolution

 

Authors: Cabral MC, Lord AR, Pinto S, Duarte LV, Azeredo AC

Published in: Bulletin of Geosciences, volume 99, issue 2; pages: 85 - 126; Received 16 November 2023; Accepted in revised form 20 March 2024; Online 2 June 2024

Keywords: Toarcian-Aalenian, ostracods, new species, palaeobiogeography, Lusitanian Basin, Portugal,

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Abstract

Upper Toarcian ostracod assemblages from Boca da Mata, Alvaiázere, Central Portugal, are described to complement earlier work on the ostracods of the Toarcian GSSP at Peniche, western Portugal. A total of 44 species are recorded and the following new taxa described: Cytheropterina ainsworthi sp. nov., Eucytherura alvaiazerensis sp. nov., Otocythere iberobritannica sp. nov., Ophektycythere gen. nov. with O. herrrigi sp. nov., O. mataensis sp. nov. and O.? sicoensis sp. nov. The assemblages reflect oxygenated fully marine, sublittoral shallow water conditions in a proximal margin of the Lusitanian Basin. The species spectrum has most in common with material described from Western Europe especially the Fastnet Basin, offshore Ireland. Lowermost Aalenian assemblages contain some Toarcian species but also new taxa not studied in detail.

References

Ainsworth, N.R. 1986. Toarcian and Aalenian Ostracoda from the Fastnet Basin, offshore southwest Ireland. Geological Survey of Ireland Bulletin 3, 277-336.

Ainsworth, N.R. 1987. Pliensbachian Ostracoda from the Fastnet Basin, offshore Southwest Ireland. Geological Survey of Ireland Bulletin 4, 41-62.

Alexander, C.I. 1929. Ostracoda of the Cretaceous of North Texas. University of Texas Bulletin 2907, 1-137.

Alexander, C.I. 1933. Shell structure of the ostracode genus Cytheropteron, and fossil species from the Cretaceous of Texas. Journal of Paleontology 7, 181-214.

Andrade, B., Duarte, L.V. & García Joral, F. 2010. Los braquiópodos del Toarciense Superior de la región de Alvaiázere de la Cuenca Lusitánica (Portugal). Datos preliminares. III Congresso Ibérico de Paleontologia/XXVI Jornadas da Sociedade Espanhola de Paleontologia, Lisboa, 52-55.

Andrade, B., Duarte, L.V., García Joral, F., Goy, A. & Henriques, M.H. 2016. Palaeobiogeographic patterns of the brachiopod assemblages of the Iberian Subplate during the Late Toarcian-Early Aalenian (Jurassic). Palaeogeography, Palaeoclimatology, Palaeoecology 442, 12-22.View article

Andreu, B., Qajoun, A. & Cubaynes, R. 1995. Ostracodes du Toarcien du Quercy (Bassin d’Aquitaine, France): systématique, biostratigraphie et paléobiogéographie. Geobios 28, 209-240.View article

Apostolescu, V. 1959. Ostracodes du Lias du Bassin de Paris. Revue de l’Institut Français du Petrole 14, 795-826.

Arias, C. 2006. Changes in ostracod provincialism during the early Toarcian in the European epicontinental sea-western Tethys area. Revista Espanola de Micropaleontología 38, 245-267.

Arias, C. & Lord, A.R. 1999a. Upper Pliensbachian and Lower Toarcian Ostracoda from the Cordillera Ibérica, north-east Spain. Part I. Revista Espanola de Micropaleontologia 31, 73-98.

Arias, C. & Lord, A.R. 1999b. Upper Pliensbachian and Lower Toarcian Ostracoda from the Cordillera Ibérica, north-east Spain. Part II. Revista Espanola de Micropaleontologia 31, 219-242.

Arias, C. & Whatley, R. 2005. Palaeozoogeography of Western European Lower Jurassic (Pliensbachian and Toarcian) Ostracoda. Geobios 38, 697-724.

Arias, C., Garcia-Frank, A., Canales, M.L. & Ureta, S. 2009. Ostracods from the Global Stratotype Section for the base of the Aalenian Stage, Jurassic, at Fuentelsaz section (Cordillera Ibérica, Spain). Rivista Italiana di Paleontologia e Stratigrafia 115, 209-232.

Azeredo, A.C., Duarte, L.V., Henriques, M.H. & Manuppella, G. 2003. Da dinâmica continental no Triásico aos mares no Jurássico Inferior e Médio. 43 pp. Cadernos de Geologia de Portugal, Instituto Geológico e Mineiro, Lisboa.

Azeredo, A.C., Duarte, L.V., Silva, R.L. 2014. Configuraçao sequencial em Ciclos (2a ordem) de Fácies Transgressivas-Regressivas do Jurássico Inferior e Médio da Bacia Lusitânica (Portugal). Comunicaçoes Geológicas 101, 383-386.

Baird, W. 1845. Arrangement of the British Entomostraca, with a list of species, particularly noticing those which have as yet been discovered within the bounds of the Club. Transactions of the Berwickshire Naturalists’ Club 2, 145-158.

Baird, W. 1850. The Natural History of the British Entomostraca. 364 pp. The Ray Society, London.View article

Bate, R.H. 1963. Middle Jurassic Ostracoda from North Lincolnshire. Bulletin of the British Museum (Natural History), Geology 8, 173-219.

Bate, R.H. & Coleman, B.E. 1975. Upper Lias Ostracoda from Rutland and Huntingdonshire. Bulletin of the Geological Survey of Great Britain 55, 1-42.

Bizon, J.-J. 1960. Sur quelques Ostracodes du Lias du Bassin Parisien. Revue de Micropaléontologie 2, 203-211.

Bodergat, A.-M. & Donze, P. 1988. Biostratigraphical scale in the Toarcian of the Paris Basin (France) by means of ostracod associations, 413-428. In Hanai, T., Ikeya, N. & Ishizaki, K. (eds) Evolutionary Biology of Ostracoda. Developments in Palaeontology and Stratigraphy 11.View article

Boomer, I. 1992. Lower Jurassic ostracods from Ilminster, Somerset, England. Journal of Micropalaeontology 11, 47-57.View article

Boomer, I. 1994. Ostracod Biostratigraphy of two borehole sections across the Toarcian/Aalenian (Lias/Dogger) boundary, southern Germany. Newsletters in Stratigraphy 31, 143-150.View article

Boomer, I. & Ainsworth, N.R. 2009. Lower Jurassic (Hettangian-Toarcian), 175-197. In Whittaker, J.E. & Hart, M.B. (eds) Ostracods in British Stratigraphy. The Micropalaeontological Society Special Publication. Geological Society, London.View article

Boomer, I. & Bodergat, A.-M. 1992. On Cytheropteron byfieldense Boomer & Bodergat sp. nov. A Stereo-Atlas of Ostracod Shells 19, 1-4.

Boomer, I., Ainsworth, N.R. & Exton, J. 1998. A re-examination of the Pliensbachian and Toarcian Ostracoda of Zambujal, west-central Portugal. Journal of Micropalaeontology 17, 1-14.View article

Boomer, I., Horne, D.J. & Slipper, I.J. 2003. The use of ostracods in palaeoenvironmental studies, or what can you do with an ostracod shell? 153-179. In Park, L.E. & Smith, A.J. (eds) Bridging the Gap - Trends in the Ostracode Biological and Geological Sciences. The Paleontological Society Papers 9.View article

Boomer, I., Lord, A. & Crasquin, S. 2008. The extinction of the Metacopina (Ostracoda). Senckenbergiana lethaea 88, 47-53.View article

Bradfield, H.H. 1935. Pennsylvanian Ostracoda of the Ardmore Basin, Oklahoma. Bulletins of American Paleontology 22(73), 1-173.

Brady, G.S. 1867. A synopsis of the Recent British Ostracoda. The Intellectual Observer 12, 110-130.

Brand, E. 1990. Biostratigraphische Untergliederung des Ober-Bathonium im Raum Hildesheim, Nordwestdeutschland mittels Ostracoden und Korrelation ihrer Vertikalreichweiten mit Ammoniten-Zonen. Geologisches Jahrbuch, A 121, 119-274.

Brand, E. 1961. In Brand, E. & Malz, H. Ostracoden-studien im Dogger, 3: drei neue Procytheridea-arten und Ljubimovella n.g. aus dem NW-Deutschen Bajocien. Senckenbergiana lethaea 42, 157-173.

Cabral, M.C., Loureiro, I., Duarte, L.V. & Azeredo, A.C. 2013. Registo da extinçao dos Metacopina (Ostracoda, Crustacea) no Toarciano de Rabaçal, regiao de Coimbra. Comunicaçoes Geológicas 100, Especial I, 63-68.

Cabral, M.C., Lord, A.R., Boomer, I.D., Loureiro, I. & Malz, H. 2014. Tanycythere new genus and its significance for Jurassic ostracod diversity. Journal of Paleontology 88, 519-530.View article

Cabral, M.C., Colin, J.-P., Azeredo, A.C., Silva, R.L. & Duarte, L.V. 2015. Brackish and marine ostracode assemblages from the Sinemurian of western Portugal, with description of new species. Micropaleontology 61, 3-24.View article

Cabral, M.C., Lord, A.R., Pinto, S., Duarte, L.V. & Azeredo, A.C. 2020. Ostracods of the Toarcian (Jurassic) of Peniche, Portugal: taxonomy and evolution across and beyond the GSSP interval. Bulletin of Geosciences 95(3), 243-278.View article

Correia, V.F., Riding, J.B., Duarte, L.V., Fernandes, P., Pereira, Z. 2018. The Early Jurassic palynostratigraphy of the Lusitanian Basin, western Portugal. Geobios 51(6), 537-557.View article

Correia, V.F., Riding, J.B, Duarte, L.V., Fernandes, P., Pereira, Z. 2021. The effects of the Jenkyns Event on the radiation of Early Jurassic dinoflagellate cysts. In Reolid, M., Duarte, L.V., Mattioli, E. & Ruebsam, W. (eds) Carbon Cycle and Ecosystem Response to the Jenkyns Event in the Early Toarcian (Jurassic). Geological Society of London, Special Publication 514.View article

Cresta, S., Goy, A., Ureta, S., Arias, C., Barrón, E., Bernad, J., Canales, M.L., García-Joral, F., García-Romero, E., Gialanella, P.R., Gómez, J.J., González, J.A., Herrero, C., Martínez, G., Osete, M.L., Perilli, N. & Villalaín, J.J. 2001. The Global Boundary Stratotype Section and Point (GSSP) of the Toarcian-Aalenian Boundary (Lower-Middle Jurassic). Episodes 24, 166-175.View article

Dana, J.D. 1852. Crustacea: Cyproidea. United States Exploring Expedition during the Years 1838, 1839, 1840, 1841, 1842, under the Command of Charles Wilkes, U.S.N. 13(2), 1277-1304.

Danielopol, D., Cabral, M.C., Horne, D., Namiotko, T. & Lord, A.R. 2023. Reconciling diagnostic traits in living and fossil taxa: The taxonomy and evolution of the genus Microceratina (Crustacea, Ostracoda, Cytheruridae). Zootaxa 5244(4), 301-340View article

De Baets, K., Natscher, P. S., Rita, P., Fara, E., Neige, P., Bardin, J., Dera, G., Duarte, L.V., Hughes, Z. Laschinger, P., Garcia-Ramos, J.C., Pinuela, L., Ubelacker, C. & Weis, R. 2021. The impact of the Pliensbachian-Toarcian crisis on belemnite assemblages and size distribution. Swiss Journal of Palaeontology 140, 25.View article

Dépeche, F. 1985. Lias Superieur, Dogger, Malm, 119-145. In Oertli, H.J. (ed.) Atlas des Ostracodes de France (Paleozoique-Actuel). Bulletin des Centres de Recherches Exploration-Production Elf-Aquitaine, Memoires 9.

Dilger, H. 1963. Mikrofauna und Stratigraphie des Dogger beta Schwabens. 98 pp. thesis, Universität Tübingen, Math.-Naturwissenschaftliche Fakultaet, Germany.

Duarte, L.V. 1995. O Toarciano da Bacia Lusitaniana. Estratigrafia e evoluçao sedimentogenética. 349 pp. Ph.D. thesis, Universidade de Coimbra, Coimbra, Portugal.

Duarte, L.V. 1997. Facies analysis and sequential evolution of the Toarcian-Lower Aalenian series in the Lusitanian Basin (Portugal). Comunicaçoes do Instituto Geológico e Mineiro 83, 65-94.

Duarte, L.V. 2007. Lithostratigraphy, sequence stratigraphy and depositional setting of the Pliensbachian and Toarcian series in the Lusitanian Basin (Portugal). Ciencias da Terra (UNL) 16, 17-23.

Duarte, L.V. & Soares, A.F. 2002. Litostratigrafia das séries margo-calcárias do Jurássico inferior da Bacia Lusitânica (Portugal). Comunicaçoes do Instituto Geológico e Mineiro 89, 135-154.

Duarte, L.V., Krautter, M. & Soares, A.F. 2001. Bioconstructions a spongiaires siliceux dans le Lias terminal du Bassin lusitanien (Portugal): stratigraphie, sédimentologie et signification paléogéographique. Bulletin Societe Géologique de France 172, 637-646.View article

Duarte, L.V., Silva, R.L., Oliveira, L.C.V., Comas-Rengifo, M.J. & Silva, F. 2010. Organic-rich facies in the Sinemurian and Pliensbachian of the Lusitanian Basin, Portugal: Total Organic Carbon distribution and relation to transgressive-regressive facies cycles. Geologica Acta 8, 325-340.

Elmi, S., Goy, A., Mouterde, R., Rivas, P. &. Rocha, R.B. 1989. Correlaciones bioestratigraficas en el Toarciense de la Peninsula Iberica. Cuadernos Geologia Ibérica 13, 265-277.

Exton, J. 1979. Pliensbachian and Toarcian Microfauna of Zambujal, Portugal: Systematic Paleontology. Carleton University Geological Paper 79-1, 1-103.

Exton, J. & Gradstein, F.M. 1984. Early Jurassic stratigraphy and micropalaeontology of the Grand Banks and Portugal, 13-30. In Westermann, G.E.G. (ed.) Jurassic-Cretaceous Biochronology and Paleogeography of North America. Geological Association of Canada Special Paper 27.

Fantasia, A., Mattioli, E., Spangenberg, J.E., Adatte, T., Bernárdez, E., Ferreira, J., Thibault, N., Krencker, F.-N. & Bodin, S. 2022. The middle-late Aalenian event: A precursor of the Mesozoic Marine Revolution. Global and Planetary Change 208.View article

Ferreira, J., Mattioli, E., Pittet, B., Cachao, M. & Spangenberg, J.E. 2015. Palaeoecological insights on Toarcian and lower Aalenian calcareous nannofossils from the Lusitanian Basin (Portugal). Palaeogeography, Palaeoclimatology, Palaeoecology 436, 245-262.View article

Ferreira, J., Mattioli, E., Sucherás-Marx, B., Giraud, F., Duarte, L.V., Pittet, B., Suan, G., Hassler, A. & Spangenberg , J.E. 2019. Western Tethys Early and Middle Jurassic calcareous nannofossil biostratigraphy. Earth-Science Reviews 197, 102908.View article

Fischer, W. 1961. Neue Arten der Ostracoden-Gattung Polycope Sars 1865 aus dem oberen Lias (Württemberg). Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 10, 497-501.

Fischer, W. 1962. Ostracoden der Gattung Monoceratina Roth 1928, Cytheropteron G.O. Sars 1865 und andere im Lias zeta Schwabens. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 114, 333-345.

Font, E., Duarte, L.V., Dekkers, M.J., Remazeilles, C., Egli, R., Spangenberg, J.E., Fantasia, A., Ribeiro, J., Gomes, E., Mirao, J. & Adatte, T. 2022. Rapid light carbon releases and increased aridity linked to Karoo-Ferrar magmatism during the early Toarcian oceanic anoxic event. Scientific Reports 2022, 12(1), 4342.View article

Franz, M., Tesakova, E. & Behe, E. 2009. Documentation and revision of the index ostracods from the Lower and Middle Jurassic in SW Germany according to BUCK (1954). Palaeodiversity 2, 119-167.

Franz, M., Beher, E. & Dietl, G. 2014. The Bathonian and Early Callovian Ostracoda of Baden-Wuerttemberg, southern Germany. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 274(2-3), 149-185.View article

Franz, M., Ebert, M. & Stulpinaite, R. 2018. Aalenian - Lower Bajocian (Middle Jurassic) ostracods from the Geisingen clay pit (SW Germany). Palaeodiversity 11, 59-105.View article

Gramann, F. 1963. Liasina n. gen. (Ostracoda) aus dem Deutschen Lias. Geologisches Jahrbuch 82, 65-73.

Gründel, J. 1967. Zur Großgliederung der Ordnung Podocopida G.W. Müller, 1894 (Ostracoda). Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1967, 321-332.

Gründel, J. & Kozur, H. 1972. Zur taxonomie der Bythocytheridae und Tricornidae (Podocopida, Ostracoda). Monatsberichte der Deutschen Akademie der Wissenschaften zu Berlin 13 (for 1971), 907-937.View article

Herrig, E. 1981a. Die polycopen Ostrakoden aus dem Thüringischen Lias. Zeitschrift für Geologische Wissenschaften 9, 675-695.

Herrig, E. 1981b. Ostrakoden aus dem Lias von Thüringen. Die Familie Cytheruridae (II) und die Gattungen Acrocythere, Dominocythere und Aphelocythere. Zeitschrift für Geologische Wissenschaften 9, 1017-1029.

Israelsky, M.C. 1929. Upper Cretaceous Ostracoda of Arkansas, 1-29. In Spooner, W.C. et al. Stratigraphy and Structure of the Gulf Coastal Plain of Arkansas. Bulletin, Geological Survey of Arkansas 2 (Supplement).

Issler, A. 1908. Beiträge zur Stratigraphie und Mikrofauna des Lias in Schweben. Palaeontographica 55, 1-104.

Jones, T.R. 1849. A monograph of the Entomostraca of the Cretaceous Formation of England. Annual Volumes (Monographs) of the Palaeontographical Society 3, 1-40.View article

Jones, T.R. & Sherborn, C.D. 1888. On some Ostracoda from the Fullers-earth Oolite and Bradford Clay. Proceedings of the Bath Natural History and Field Club 6, 249-278.

Kaufmann, A. 1900. Cypriden und Darwinuliden der Schweiz. Revue Suisse de Zoologie 8, 209-423.View article

Knitter, H. 1983. Biostratigraphische Untersuchungen mit Ostracoden im Toarcien Süddeutschlands. Facies 8, 213-262.View article

Knitter, H. 1984. Nomenklatorische Bemerkungen zu einigen Ostracodenarten aus dem oberen Lias Süddeutschlands. Jahreshefte des geologischen Landesamtes Baden-Württemberg 26, 49-55.

Knitter, H. & Riegraf, W. 1984. Biostratigraphie (Cephalopoden, Ostracoden) des Oberen Toarcium von Blumberg-Achdorf/Wutach und Weilheim/Teck (Baden-Württemberg). Jahreshefte des Geologisches Landesamt Baden-Württemberg 26, 57-97.

Kozur, H. 1972. Die Bedeutung triassischer Ostracoden für stratigraphische und paläoökologische Untersuchungen. Mitteilungen der Gesellschaft der Geologie und Bergbaustudenten in Oesterreich 21, 623-660.

Latreille, P.A. 1802. Histoire naturelle, générale et particuliere des crustacés et des insectes. Ouvrage faisant suite a l’Histoire Naturelle générale et particuliere, composée par Leclerc de Buffon, et rédigée par C. S. Sonnini, membre de plusieurs Sociétés savantes. Tome 3. F. Dufart, Paris, 467 pp. An X.View article

Ljubimova, P.S. 1955. Ostrakody Mezozoyskikh otlozheniy srednego Povolzhya i Obshchego Syrta. Trudy Vsesoyuznogo Neftyango Nauchno-Issledovatelskogo Geologo-razvedochnogo Instituta (VNIGRI), Novaya Seriya 84, 3-189.

Lord, A.R. 1974. Ostracods from the Domerian and Toarcian of England. Palaeontology 17, 599-622.

Lord, A.R. 1978. The Jurassic Part 1 (Hettangian-Toarcian), 189-212. In Bate, R. & Robinson, E. (eds) A stratigraphical index of British Ostracoda. Geological Journal Special Issue 8. Liverpool.

Lord, A.R., Boomer, I., Brouwers, E. & Whittaker, J.E. 2012. Ostracod Taxa as Palaeoclimate Indicators in the Quaternary, Chapter 3, 37-45. In Horne, D.J., Holmes, J., Viehberg, F. & Rodriguez-Lazaro, J. (eds) Ostracoda as Proxies for Quaternary Climate Change. Elsevier, Amsterdam.View article

Lord, A.R., Cabral, M.C. & Danielopol, D.L. 2020. Sieve-type normal pore canals in Jurassic ostracods: A review with description of a new genus. Acta Palaeontologica Polonica 65, 1-37.View article

Loureiro, I.M., Cabral, M.C., Duarte, L.V. & Azeredo, A. C. 2010. Ostracods from the Toarcian of Rabaçal (Coimbra region): new biostratigraphical data. e-Terra, Geosciences On-line Journal 17(8), 1-4. http://e-terra.geopor.pt

Maddocks, R.F. 1969. Revision of Recent Bairdiidae (Ostracoda). United States National Museum Bulletin 295, 1-126.View article

Mandelstam, M.I. 1956. In Schneider, G.F. et al. Materialy po Paleontologii. Novye semeystva i rody: Ostracoda. Trudy Vsesoyuznogo Nauchno-Issledovatelskogo Geologicheskogo Instituta (VSEGEI), Novaya Seriya 12, 87-144, 306-323.

Mandelstam, M.I. 1959. Ostrakody iz otlozheniy Paleogena sredney Azii. Trudy Vsesoyuznogo Neftyango Nauchno-Issledovatelskogo Geologo-razvedochnogo Instituta (VNIGRI), Novaya Seriya 136 (Mikrofauna SSSR: 10), 442-542.

Mandelstam, M.I. 1960. Ostracoda: nadsemeystvo Cytheracea, 365-411. In Luebimova, P.S., Mandelstam, M.I. & Schneider, G.F. (eds) Osnovy Paleontologii 8.

Martin, G.P.R. 1960. In Hoffmann, K. & Martin, G.P.R. Die zone des Dactylioceras tenuicostatum (Toarcien, Lias) in NW- und SW-Deutschland. Paläontologische Zeitschrift 34, 103-149.View article

M’Coy, F. 1844. A synopsis of the characters of the Carboniferous Limestone fossils of Ireland. 207 pp. University Press, Dublin.View article

McKenzie, K.G. 1968. Saipanetta, new name for Saipanella McKenzie, 1967 (Ostracoda, Podocopida) non Saipanella Chamberlin, 1945 (Myriopoda). Crustaceana 14, 104-105.View article

Michelsen, O. 1975. Lower Jurassic biostratigraphy and ostracods of the Danish Embayment. Geological Survey of Denmark. II. Series, 104, 1-287.View article

Mouterde, R. & Ruget, C. 1967. Stratigraphie du Lias de la région d’Alvaiázere. Comunicaçoes dos Serviços Geológicos de Portugal 51, 153-168.

Müller, G.W. 1894. Die Ostracoden des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. Fauna und Flora des Golfes von Neapel und der angrenzenden Meeres-Abschnitte. Herausgegeben von der Zoologischen Station zu Neapel 21, 1-404.

Müller, T., Jurikova, H., Gutjahr, M., Tomašových, A., Schlögl, J., Liebetrau, V., Duarte, L.V., Milovský, R., Suan, G., Mattioli, E., Pittet, B. & Eisenhauer, A. 2020. Ocean acidification during the early Toarcian extinction event: Evidence from boron isotopes in brachiopods. Geology 48, 1184-1188.View article

Norman, A.M. 1865. Report on the Crustacea of the deep sea dredging off the coasts of Northumberland and Durham. Transactions of the Natural History Society of Northumberland, Durham and Newcastle-upon-Tyne 1, 12-19.

Ohmert, W. (ed.) 1996. Die Grenzziehung Unter-/Mitteljura (Toarcium/Aalenium) bei Wittnau und Fuentelsaz. Geologisches Landesamt Baden-Württemberg Informationen 8, 1-52.

Pais, V., Cabral, M.C., Lord, A., Azeredo, A.C. & Gallagher, L. 2016. Middle Jurassic Tethyan-Boreal ostracod faunal links: a case study from the Callovian of Portugal. Journal of Micropalaeontology 35, 205-228.View article

Perilli, N. & Duarte, L.V. 2006. Toarcian nannobiohorizons from Lusitanian Basin (Portugal) and their calibration against ammonite zones. Revista Italiana di Paleontologia e Stratigrafia 112, 417-434.

Pinto, S., Cabral, M.C. & Duarte, L.V. 2007. Preliminary data on the ostracod fauna from the Lower Toarcian of Peniche. Ciencias da Terra (UNL) 16, 37-43.

Plumhoff, F. 1963. Die ostracoden des Oberaalenium und tiefen Unterbajocium (Jura) des Gifhorner troges, Nordwestdeutschland. Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 503, 1-100.

Plumhoff, F. 1967. Die Gattung Aphelocythere (Ostracoda) im NW-europäischen Jura und zur Entwicklung der Mikrofauna am Übergang Domerium/Toarcium. Senckenbergiana lethaea 48, 549-577.

Reolid, M. & Duarte, L.V. 2014. Sponge-microbialite buildups from Toarcian of the Coimbra Region (Northern Lusitanian Basin, Portugal): Palaeoecological and palaeoenvironmental significance. Facies 60, 561-580.View article

Reolid, M., Mattioli, E., Duarte, L.V. & Ruebsam, W. 2021. The Toarcian Oceanic Anoxic Event: where do we stand? In Reolid, M., Duarte, L.V., Mattioli, E. & Ruebsam, W. (eds) Carbon Cycle and Ecosystem Response to the Jenkyns Event in the Early Toarcian (Jurassic). Geological Society of London, Special Publication 514. View article

Riegraf, W. 1985. Mikrofauna, Biostratigraphie und Fazies im Unteren Toarcium Südwestdeutschlands und Vergleiche mit benachbarten Gebieten. Tübinger Mikropaläontologische Mitteilungen 3, 1-232.

Rocha, R.B., Mattioli, E., Duarte, L.V., Pittet, B., Elmi, S., Mouterde, R., Cabral, M.C., Comas-Rengifo, M.J., Gómez, J.J., Goy, A., Hesselbo, S.P., Jenkyns, H.C., Littler, K., Mailliot, S., Oliveira, L.C.V., Osete, M.L., Perilli, N., Pinto, S., Ruget, C. & Suan, G. 2016. Base of the Toarcian Stage of the Lower Jurassic defined by the Global Boundary Stratotype Section and Point (GSSP) at the Peniche section (Portugal). Episodes 39, 460-481.View article

Rodrigues, B., Duarte, L.V., Silva, R.L. & Mendonça Filho, J.G. 2020. Sedimentary organic matter and early Toarcian environmental changes in the Lusitanian Basin (Portugal). Palaeogeography, Palaeoclimatology, Palaeoecology 554, 109781.View article

Roemer, F.A. 1841. Die versteinerungen des Norddeutschen Kreidegebirges. 145 pp. Hannover.View article

Rojas, A, Calatayud, J., Kowalewski, M., Neuman, M. & Rosvall, M. 2021. A multiscale view of the Phanerozoic fossil record reveals the three major biotic transitions. Communications Biology.View article

Roth, R. 1928. Monoceratina: a new genus of Ostracoda from the Pennsylvanian of Oklahoma. Journal of Paleontology 2, 15-19.

Sars, G.O. 1866. Oversigt af Norges marine ostracoder. Forhandlinger i Videnskabs-selskebet i Christiania 1865, 1-130.

Sars, G.O. 1887. Nye bidrag til kundskaben om Middelhavets invertebratfauna: 4. Ostracoda Mediterranea (Sydeuropaeiske). Archiv for Mathematik og Naturvidenskab 12, 173-324.View article

Sars, G.O. 1926. An account of the Crustacea of Norway with short descriptions and figures of all the species. Volume 9, parts 13-14. 209-240 pp. Bergen Museum, Bergen.

Schwager, C. 1866. Crustaceen, Radiaten und Foraminiferen, 205-318. In Oppel A. & Waagen, W. Über die Zone des Ammonites transversarius. Geognostisch-Paläontologische Beiträge 1.

Stephenson, M.B. 1946. Weches Eocene Ostracoda from Smithville, Texas. Journal of Paleontology 20, 297-344.

Swanson, K. 1980. Five new species of Ostracoda from Port Pegasus, Stewart Island. New Zealand Journal of Marine and Freshwater Research 14(2), 205-211.View article

Tesakova, E.M. 2017. Biostratigraphie du Jurassique moyen des sondages Benken et Schlattingen-1 (Nord de la Suisse) établie sur la base de la répartition des ostracodes. NAGRA NAB 17-41, 1-77.

Triebel, E. 1950. Camptocythere, eine neue Ostracoden-Gattung aus dem Dogger Norddeutschlands. Senckenbergiana 31, 197-208.

Triebel, E. & Bartenstein, H. 1938. Die Ostracoden des deutschen Juras. I. Monoceratina-Arten aus dem Lias und Dogger. Senckenbergiana 20, 502-518.

Triebel, E. & Klingler, W. 1959. Neue Ostracoden-Gattungen aus dem deutschen Lias. Geologisches Jahrbuch 76, 335-372.

Ullmann, C.V., Boyle, R., Duarte, L.V., Hesselbo, S.P., Kasemann, S.A., Klein, T., Lenton, T.M., Piazza, V. & Aberhan, M. 2020. Warm afterglow from the Toarcian Oceanic Anoxic Event drives the success of deep-adapted brachiopods. Scientific Reports 10, 6549.View article

Van Den Bold, W.A. 1960. Eocene and Oligocene Ostracoda of Trinidad. Micropaleontology 6, 145-196.View article

Wannenmacher, R., Dietze, V., Franz, M. & Schweigert, G. 2021. New records of ostracods and ammonites from the Aalenian (mainly Concavum Zone) of the Zollernalb (Swabian Alb, SW Germany). Zitteliana 95, 1-55.View article

Whatley, R., 1970. Scottish Callovian and Oxfordian Ostracoda. Bulletin of the British Museum (Natural History), Geology 19, 297-358.

Whatley, R. & Boomer, I. 1990. Systematic review and evolution of the early Cytheruridae (Ostracoda). Journal of Micropalaeontology 19, 139-151.View article