Il nord della Sardegna, specialmente la Nurra, nei pressi di Alghero, è particolarmente ricco di fossili sia per quanto riguarda la micro che la macro. Ti consiglio, se ne hai la possibilità, di consultare la bibliografia seguente (è solo parziale, ma da qui puoi risalire a tutto il resto):

ASHRAF, A.A., CHERCHI, A. & SCHROEDER, R., 1984, Pollen und Sporen aus dem mittleren Dogger von NW–Sardinien (Italien): Palaeontographica B, 192 (1-3): 1-15.
BAGNOLI G., BARATTOLO F., FOIS, E., MURRU M., PERRI C., & PITTAU P., 1985 b, Site B.1 – Middle Triassic of Punta del Lavatoio (Alghero). In A. Cherchi ed., Guidebook of the “19th European Micropalentological Colloquium”, Sardinia Oct. 1-10 1985: 136-139, Cagliari.
BAGNOLI G., GANDIN A. & PERRI C., 1985 a, Ladinian conodont apparatuses from northwestern Sardinia, Italy. Boll. Soc. Paleont. It., 23(2): 311-323.
BARTUSCH M., 1985, Geologie des Monte Sta.Giusta (Nurra, NW-Sardinien). Thesis Univ. Frankfurt, 203 pp.
BASSOULLET, J.-P., CHABRIER, G. & FOURCADE, E., 1974, Timidonella sarda n. gen. n. sp., nouveau Lituolidé (Foraminifère) du Dogger: C.R. Acad.Sc. Paris, 279, S.D: 2015-2018.
BASSOULLET, J.-P., CHABRIER, G. & FOURCADE, E., 1976, Données complémentaires sur la morphologie, la structure interne et la position stratigraphique de Timidonella sarda (Foraminifère, Lituolidae): Rev. Micropaléont.: 19 (1):3-18.
CARANNANTE, G. & SIMONE, L., 1990, Vertical transition from Chlorozoan to Foramol carbonate sediments in the Cretaceous of Nurra Region; North Western Sardinia, Italy: 13th Intern. Ass. Sedimentologists Congress, Nottingham, Abstr.-book: 75-76.
CARANNANTE, G., CHERCHI, A. & SIMONE, L., 1995, Chlorozoan versus foramol lithofacies in Upper Cretaceous rudist limestones. Palaeogeogr., Palaeoclim., Palaeoecol., 119: 137-154.
CARANNANTE, G., GRAZIANO, R., RUBERTI, D. & SIMONE, L., 1996., Upper Cretaceous temperate-type open shelves from northern (Sardinia) and southern (Apennines-Apulia) Mesozoic Tethyan Margins. In: N.P. James & J. Clarke (Eds.) “Cool-water carbonates”, SEPM Special Publ., 56: 309-325.
CARILLAT, A., MARTINI, R., ZANINETTI, L., CIRILLI, S., GANDIN, A & VRIELYNCK, B., 1999, The Mushelkalk (Middle to Upper Triassic) of the Monte di Santa Giusta (NW Sardinia): sedimentology and biostratigraphy: Eclogae geol. Helv., 92: 81-97.
CASSINIS, G., CORTESOGNO, L., GAGGERO, L., RONCHI, A. & VALLONI, R., 1996, Stratigraphic and petrographic investigations into the Permo-Triassic continental sequences of Nurra (NW Sardinia): Cuad. Geol. Iberica, spec. issue, 21: 149-169.
CASSINIS, G., DURAND, M. & RONCHI, A., 2001, Permian-Triassic continental sequences of Northwest Sardinia and South Provence: stratigraphic correlations and palaeogeographic implications: in “Stratigraphic and Structural Evolution on the Late Carboniferous to Triassic Continental and Marice Successions in Tuscany (Italy). Regional Reports and General Correlation”, Intern. Meet., April 30-May 7, 2001, Siena, Italy, Abstr. Vol.: 26-28.
CASSINIS, G., DURAND, M. & RONCHI, A., in press, Permian-Triassic continental sequences of Northwest Sardinia and South Provence: stratigraphic correlations and palaeogeographical implications: Boll. Soc. Geol. It.
CHABRIER, G. & FOURCADE, E., 1975, Sur le Crétacé du Nord-Ouest de la Sardaigne (présence de Valanginien à faciès pyrénéo-provençal): C.R. Acad. Sc. Paris D, 280: 563-566.
CHERCHI A. & SCHROEDER R., 1982, Spiraloconus giganteus n. sp., a new lituolid foraminifer from the Dogger of NW Sardinia (Italy): Boll. Soc. Paleont. Ital., 20 (2): 163-168.
CHERCHI A. & SCHROEDER R., 1995, Stratigraphy of the Mesozoic of the Nurra region. In A. Cherchi (ed.): Guide book of the “6th Paleobenthos International Symposium”, Sardinia oct. 25-31 1995, Rend. Seminario Fac. Sc. Univ. Cagliari, suppl. of vol. 65: 119-133.
CHERCHI, A. & SCHROEDER, R., 1985, Mesozoic of northwestern Sardinia. In Cherchi A. (Ed.), 19th European Micropaleontological Colloquium – Sardinia October 1-10, 1985, Guide-book: 44-56, Cagliari.
CHERCHI, A. & SCHROEDER, R., 1985, Site C.1 – “Purbeckian” – Lower Aptian of Cala d’Inferno – Torre del Bulo: In Cherchi, A. (Ed.), 19th European Micropaleontological Colloquium – Sardinia October 1-10, 1985, Guide-book: 156-168.
CHERCHI, A. & SCHROEDER, R., 1985, Site B.4 – Bajocian of Monte Vaccargiu (Fertilia). In Cherchi A. (Ed.), 19th European Micropaleontological Colloquium – Sardinia October 1-10, 1985, Guide-book: 146-150, Cagliari.
CHERCHI, A. & SCHROEDER, R., 1985b, Site C.2 – Lower Barremian and Coniacian-Santonian of Capo Caccia: In Cherchi, A. (Ed.), 19th European Micropaleontological Colloquium, Sardinia October 1-10, 1985, Guide-book: 168-172.
CHERCHI, A. & SCHROEDER, R., 1985C, Sarfatiella sarda (Pecorini, 1972) n. comb. (Dasycladaceae) from the basal Lower Cretaceous of NW Sardinia and some comments on Lacrymorphus Radoičić and Humiella Sokač & Velić: Boll. Soc. Paleont. Ital., 23(2)[1984]: 355-360.
CHERCHI, A. & SCHROEDER, R., 1999, Montseciella, a new orbitolinid genus (Foraminiferida) from the Uppermost Hauterivian – Early Barremian of SW Europe: Treb. Mus. Geol. Barcelona, 8: 5-23.
CHERCHI, A., & SCHROEDER, R., 1987, Biostratigraphie du Crétacé de la Nurra. In A., Cherchi (Ed.) Groupe Français du Crétacé. Excursion en Sardaigne, Dept. Sc. Terra Univ. Cagliari and Progemisa: 26-60.
CHERCHI, A., GUSIC, I., SCHMIDT, M. & SCHROEDER, R., 1981, Lacustrine Middle Cretaceous with Munieria grambasti sarda n. ssp. (Charophyta?) of Alghero (NW Sardinia): Rev. Micropaléont., 23 (3-4): 138-150.
COLIN, J.-P., FEIST, M., GRAMBAST-FESSARD, N., CHERCHI, A. & SCHROEDER, R., 1985, Charophytes and ostracods from the Berriasian (Purbeckian facies) of Cala d’Inferno (Nurra region, NW Sardinia): Boll. Soc. Paleont. It., 23(2) [1984]: 345-354.
FAURE, P. & PEYBERNES, B., 1983, Le Lias de la Nurre (Sardaigne Nord-Occidentale). Implications paléogéographiques: C.R. Acad.Sc. Paris, 296, 1799-1802.
FONTANA, D., NERI, C., RONCHI, A. & STEFANI, C., 2001, Stratigraphic architecture and composition of the Permian and Triassic siliciclastic succession of Nurra (Nortwestern Sardinia): in Cassinis G. (Ed.), Permian continental deposits of Europe and other areas. Regional reports and correlations, Proceed. Intern. Field Conf. on “The continental Permian of the Southern Alps and Sardinia (Italy). Regional reports and general correlations”, 15-25 Sept. 1999, Brescia, Italy: “Natura Bresciana”, Ann. Mus. Civ. Sc. Nat., Brescia, Monogr. N. 25: 149-161, Brescia.
GANDIN A., 1978, Il Trias Medio di Punta del Lavatoio (Alghero, Sardegna NW). Mem. Soc. Geol. It., 18: 3-13.
HAEHNEL, T., 1983, Zur Stratigraphie, Mikrofazies und Tektonik der Halbinsel des Capo Caccia (Nurra, NW-Sardinien): Thesis Univ. Frankfurt/Main: 250 pp.
MALZ, H., HOFMANN, K., RADTKE, G. & CHERCHI, A., 1985, Biostratigraphy of the Middle Jurassic of N.W. Sardinia by means of ostracods: Senkenbergiana lethaea, 66 (3-5): 299-345.
NERI, C. & RONCHI, A., 2000, The Permian-Triassic Succession of Cala Viola-Porto Ferro. 2.3. Buntsandstein deposits of Mt. Santa Giusta. Excursion 4: The Permian and Triassic stratigraphic record in northwestern Sardinia (Nurra): in Cassinis, G., Cortesogno, L., Gaggero, L., Pittau, P., Ronchi, A. & Sarria, E. (Co-ordinators), Late Palaeozoic continental basins of Sardinia, Field Trip Guidebook, 15-18 Sept. 1999, Earth Sci. Dept., Pavia Univ., Intern. Field Conf. on “The continental Permian of the Southern Alps and Sardinia (Italy). Regional reports and general correlations”, 15-25 Sept. 1999, Brescia: 108-109, Officine Grafiche, Sta.g.ed, S. Zeno (Brescia).
NERI, C. CASSINIS, G. & RONCHI, A., 2000a, The Lower Permian Deposits of Punta Lu Caparoni. 1.1. Stratigraphy and facies: ibidem, 97-98, Officine Grafiche, Sta.g.ed, S. Zeno (Brescia).
NERI, C., RONCHI, A., CASSINIS, G., FONTANA, D. & STEFANI, C., 2000b, The Permian-Triassic Succession of Cala Viola-Porto Ferro. 2.1. Stratigraphy, sedimentology and sandstone petrography: ibidem: 102-105, Officine Grafiche, Sta.g.ed, S. Zeno (Brescia).
OOSTERBAAN, A. M., 1936, Etude géologique et paléontologique de la Nurra (Sardaigne) avec quelques notes sur le Permien et le Trias de la Sardaigne méridionale: Thesis Univ. Utrecht: 136 pp.
PECORINI, G., 1969, Le Clavatoracee del “Purbeckiano” di Cala d’Inferno nella Nurra di Alghero (Sardegna nord-occidentale): Boll. Soc. Sarda Sc. Nat., 5: 1-14.
PECORINI, G., 1972, Microflora “Purbeckiana” della Nurra (Sardegna): Boll. Soc. Geol. It., 91: 373-385.
PHILIP, J., CHERCHI, A., SCHROEDER, R., SIGAL, J. & ALLEMANN, J., 1978, Les formations à Rudistes du Crétacé‚ supérieur de Sardaigne. Données stratigraphiques et paléobiogeographiques. C.R. Somm. Soc. Geol. France, (2): 83-85.
PITTAU DEMELIA, P. & FLAVIANI, A., 1983, Palinostratigrafia della serie Triassica di Punta del Lavatoio (Sardegna nord-occidentale): Riv. It. Paleont. Strat., 88: 401-416.
PITTAU P., 1999, 2.2 The Triassic succession of northwest Sardinia: data from the subsurface. In Cassinis at al. (eds.): Late Paleozoic continental basins of Sardinia, field trip guidebook of the “International Field Conference on “The Continental Permian of the southern Alps and Sardinia (Italy). Regional reports and general correlations” Brescia 15-25 sept. 1999, 106-107.
POMESANO CHERCHI, A., 1967, I Conodonti del Muschelkalk della Nurra (Sardegna nord-occidentale): Riv. It. Paleont. Strat., 73(1): 205-272.
POMESANO CHERCHI, A., 1968, Studio biostratigrafico del sondaggio Cugiareddu nel Trias e Permico della Nurra (Sardegna nord-occidentale): Ist. Geol. e Paleont. Univ. Cagliari, 61: 51 pp.
POSENATO R., 1995, E.4 Stop 1: Macrofauna from the Punta del Lavatoio succession (Middle Triassic). In A. Cherchi ed., Guide-book of the “6th Paleobenthos International Symposium”, Sardinia Oct. 25-31, 1995, Rend. Semin. Fac. Sc. Univ. Cagliari, 65 (suppl.): 136-141.
SCHMIDT, M., 1985, Geologie des Monte Timidone (Nurra, NW-Sardinien): Thesis Univ. Frankfurt: 195 pp.

Saluti e buone escursioni!!!
t.