(41 references below)

• POINAR, G. O., Jr.  1992.  Life in Amber.  Palo Alto:  Stanford University Press.
• POINAR, G. O., Jr.; Warheit, K.; Brodzinsky, J.  1985.  A Fossil Feather in Dominican Amber.  IRCS Med. Sci. 13, 927.
• POLCYN, M. J.; Bell, G. L., Jr.  1996.  A Complete Skull of a new Mosasauroid From the Arcadia Park Member of the Eagle Ford Shale (Late Middle Turonian) Near Dallas, Texas.  Journal of Vertebrate Paleontology 16 (3), Supplement, 58A.
• POLLARD, J. E.  1968.  The Gastric Contents of an Ichthyosaur From the Lower Lias of Lyme Regis, Dorset.  Palaeontology 11 (3), 376–378.
• POOLE, I.; Cantrill, D.  2001.  Fossil Woods From Williams Point Beds, Livingston Island, Antarctica:  A Late Cretaceous Southern High Latitude Flora.  Palaeontology 44 (6), 1081-1112.
• POPENOE, W. P.  1943.  Cretaceous:  East Side Sacramento Valley, Shasta and Butte Counties, California.  American Association of Petroleum Geologists Bulletin 27 (3), 306–312.
• POPENOE, W. P.  1954.  “Mesozoic Formations and Faunas, Southern California and Northern Baja California”.  In:  Geology of Southern California, Chapter III, Historical Geology.  Jahns, R. H., ed.  California Division of Mines Bulletin 170, 15–21.
• POPENOE, W. P.  1957.  The Cretaceous Gastropod Genus Biplica.  University of California, Publications in Geological Science 30 (6), 425–454.
• POPENOE, W. P.; Imlay, R. W.; Murphy, M. A.  1960.  Correlation of the Cretaceous Formations of the Pacific Coast (United States and Northwestern Mexico).  Geological Society of America Bulletin 71 (10), 1491–1540.
• POPOVICI-HATZEG, V.  1899.  Contribution à l'Étude de la Faune du Crétacé Supérieur de Roumanie, Environs de Campulung et de Sinaia.  Mémoire de la Société Géologique de France 8 (3) 1–20. (English translation:  Contribution to the Study of the Fauna From the Upper Cretaceous of Romania, near Campulung and Sinaia.)
• PORSCH, H. W., Jr.  1965.  Biometry of Enallaster texanus.  MA Thesis, University of Texas, Austin (unpublished). (Note:  Enallaster texanus  = Heteraster texanus (Roemer))
• PORTER, K. W.; Campen, E. B.; Cobban, W. A.; Hansen, W. B.  1990.  Stratigraphic Sequences and Unconformities in Cretaceous Rocks of East-Central Montana.  American Association of Petroleum Geologists Bulletin 74 (8), 1341.
• PORTER, K. W.; Sonnenberg, S. A.  1994.  “Unconformity-Related Exploration and Production, Lower Cretaceous Muddy Sandstone Interval, Rocky Mountain Region”.  In:  Dolson, J. C., ed.  Unconformity Related Hydrocarbon Exploration and Exploitation in Carbonate and Clastic Settings.  Rocky Mountain Association of Geologists Guidebook.
• PORTHAULT, B.; Thomel, G.; Villoutreys, O.  1966.  Étude Biostratigraphique du Cénomanien du Bassin Supérieur de l'Estéron (Alpes-Maritimes).  Le Problème de la Limite Cénomanien-Turonien dans le Sud-Est de la France.  Bulletin de la Société Géologique de France 8 (7), 423–439. (English translation:  Biostratigraphic Study of the Cenomanian in the Upper Estéron Basin (Department of Alpes-Maritimes)-The Problem of the Cenomanian-Turonian Boundary in Southeast France.)
• PORTLOCK, J. E.  1843.  Report on the Geology of the County Londonderry, and Parts of Tyrone and Fermanagh.  Dublin:  1–784.
• POTH, Stephen.  1979.  Structural Transition Between the Santiago and Del Carmen Mountains in Northern Big Bend National Park, Texas, MA Thesis, University of Texas, Austin.
• POWELL, J. D.  1961.  Stratigraphy of Cenomanian-Turonian (Cretaceous) Strata, North-Eastern Chihuahua and Adjacent Texas.  PhD Thesis, University of Texas, Austin.
• POWELL, J. D.  1963.  Turonian (Cretaceous) Ammonites from Northeastern Chihuahua, Mexico.  Journal of Paleontology 37 (6), 1217–1232.
• POWELL, J. D.  1963.  Cenomanian-Turonian (Cretaceous) Ammonites from Trans-Pecos, Texas and Northeastern Chihuahua, Mexico.  Journal of Paleontology 37 (2), 309–322.
• POWELL, J. D.  1965.  Late Cretaceous Platform-Basin Facies, Northern Mexico and Adjacent Texas.  American Association of Petroleum Geologists Bulletin 49 (5), 511–525.
• POWELL, J. D.  1967.  Mammitine Ammonites in Trans-Pecos Texas.  Texas Journal of Science 19 (3), 311–322.
• POWELL, J. D.  1968.  Woodbine-Eagle Ford Transition, Tarrant Member.  Geological Society of America, South-Central Section, Second Annual Meeting Field Trip Guidebook, 27–43.
• POWERS, S.  Interior Salt Domes of Texas.  American Association of Petroleum Geologists Bulletin 10, 1–60.
• POŻARYSKA, K.  1954.  O Przewodnich Otwornicach z Kredy Górnej Polski Środkowej.  Acta Geological Polonica 4 (2), 249–276. (English translation:  The Upper Cretaceous Index Foraminifers From Central Poland.)
• POŻARYSKI, W.  1938.  Straygrafia Senonu w Przelomie Wisly Miedzy Rachowem i Pulawami.  Poland Institute of Geology Bulletin 6, 1–94. (English translation:  Senonian Stratigraphy in the Breach of the Wisla River Between Rachow and Pulawy in Central Poland.)
• POŻARYSKI, W.  1948.  Jura i Kreda Miedzy Radomiem, Zawichostem i Kraśnikiem.  Poland Institute of Geology Bulletin 46, 1–141. (English translation:  Jurassic and Cretaceous Between Radom, Zawichost, and Kraśnik.)
• PRATHER, J. K.  1901.  On Fossils of the Texas Cretaceous, Especially Those Collected at Austin and Waco.  Transactions of the Texas Academy of Science 4, 85–87.
• PRATHER, J. K.  1902.  A Preliminary Report on the Austin Chalk Underlying Waco, Texas and the Adjoining Territory.  Transactions of the Texas Academy of Science 4 (2), 115–122.
• PRATHER, J. K.  1905.  The Atlantic Highlands Section of the New Jersey Cretacic.  American Geologist 36, 162–178.
• PRATT, L. M.; Kauffman, E. G.; Zelt, F. B., ed’s.  1985.  Fine-Grained Deposits and Biofacies of the Cretaceous Western Interior Seaway:  Evidence of Cyclic Sedimentary Processes.  Society of Economic Paleontologists and Mineralogists, 1985 Midyear Meeting, Golden, Colorado, Field Trip Guidebook 4.
• PRESCOTT, G. C., Jr.  1955.  Geology and Ground–Water Resources of Graham County, Kansas.  Kansas Geological Survey Bulletin 110.
• PREY, S.  1983.  Das Ultrahelvetikum-Fenster des Gschliefgrabens Südsüdostlich von Gmunden (Oberösterrreich).  Jahrbuch der Geologischen Bundesanstalt Wien 126, 95–127.
• PRICE, F. G. H.  1879.  The Gault.  London:  Taylor and Francis, 1–81.
• PRIEM, F.  1896.  Sur les Poissons de la Craie Phosphatee des Environs de Peroone.  Bulletin de la Société Géologique de France 24 (3), 9–23. (English translation:  On the Fish From the Phosphatic Chalk Near Peroone.)
• PRIEM, F.  1897.  Sur des Dents d’Elasmobranches de Divers Gisements Se Noniens (Villedieu, Meudon, Folx-les-Caves).  Bulletin de la Société Géologique de France 25 (3), 40–56.
• PRIEM, F.  1897.  Note sur Propristis Dame du Tertiare Inférieur d’Egypte.  Bulletin de la Société Géologique de France 25 (3), 228–232. (English translation:  Note On Propristis Dame From the Lower Tertiary of Egypt.)
• PROSSER, C. S.  1897.  Comanche Series of Kansas.  Kansas Geological Survey 2, 96–181.
• PROSSER, C. S.  1897.  The Dakota Sandstone.  Kansas Geological Survey 2, 182–194.
• PRUITT, E. J., Jr.  1948.  A Study of the Trinity Group, Santa Anna Mountains, Coleman County, Texas.  MA Thesis, University of Texas, Austin (unpublished).
• PRYOR, W. A.  1960.  Cretaceous Sedimentation in Upper Mississippi Embayment.  American Association of Petroleum Geologists Bulletin 44, 1473–1504.
• PRYOR, W. A.; Glass, H. D.  1961.  Cretaceous-Tertiary Clay Mineralogy of the Upper Mississippi Embayment.  Journal of Sedimentary Petrology 31, 38–51.