Supplementary Material, File 2

R. L. Parsley and C. D. Sumrall. 2007. New recumbent echinoderm genera from the Bois d'Arc Formation: Lower Devonian (Lochkovian) of Coal County, Oklahoma. Journal of Paleontology 81(6):1486-1493.

R. L. Pitman, A. L. Van Helden, and P. B. Best, A. Pym. 2006. Shepherd's beaked whale (Tasmacetus shepherdi): Information on appearance and biology based on strandings and at-sea observations. Marine Mammal Science 22(3):744-755.

R. L. S. Brownlaw and J. S. Jell. 2008. Middle and Upper Devonian rugose corals from the Canning Basin, Western Australia. Memoirs of the Association of Australasian Palaeontologists 35:1-126.

R. L. Squires and J. L. Goedert. 1984. Macropaleontology of the Eocene Crescent Formation in the Little River Area, Southern Olympic Peninsula, Washington. Contributions in Science (Natural History Museum of Los Angeles County) 444:1-32.

R. L. Squires and J. L. Goedert. 1995. New Species of Middle Eocene Gastropods from the Northern Doty Hills, Southwestern Washington. The Veliger 38(3):254-269.

R. L. Squires and L. R. Saul. 2003. New information on Late Cretaceous, Paleocene, and Eocene neritid gastropods from the North American Pacific slope. The Veliger 45(4):177-192.

R. L. Squires and R. A. Demetrion. 1992. Paleontology of the Eocene Bateque Formation, Baja California Sur, Mexico. Contributions in Science (Natural History Museum of Los Angeles County) 434:1-55.

R. L. Squires and R. Demetrion. 1990. New Eocene Marine Bivalves from Baja California Sur, Mexico. Journal of Paleontology 64(3):382-391.

R. L. Squires, J. L. Goedert, and K. L. Kaler. 1992. Paleontology and stratigraphy of Eocene rocks at Pulali Point, Jefferson County, Olympic Peninsula, Washington. .

R. L. Squires. 1987. Eocene molluscan paleontology of the Whitaker Peak area, Los Angeles and Ventura counties, California. Contributions in Science, Natural History Museum of Los Angeles County 388:1-93.

R. L. Squires. 1988. Cephalopods from the late Eocene Hoko River Formation, northwestern Washington. Journal of Paleontology 62:76-82.

R. L. Squires. 1988. Eocene Macropaleontology of Northern Lockwood Valley, Ventura County, California. Contributions in Science (Natural History Museum of Los Angeles County) 398:1-23.

R. L. Squires. 1990. New Paleogene Siliquariid and Vermetid Gastropods from the Pacific Coast of Southwestern North America. The Veliger 33(3):286-292.

R. L. Squires. 2001. Additions to the Eocene megafossil fauna of the Llajas Formation, Simi Valley, southern California. Contributions in Science (Natural History Museum of Los Angeles County) 489:1-40.

R. L. Squires. 2008. Eocene megapaleontology, stratigraphy, and depositional environments, Elsmere Canyon, Los Angeles County, California. Contributions in Science (517):1-16.

R. La Perna. 2016. A revision of the genus Europicardium Popov, 1977 (Bivalvia: Cardiidae) from the European Neogene: tracking palaeogeography and climate changes. Journal of Systematic Palaeontology .

R. Lawley. 1876. Nuovi studi sopra i pesci ed altri vertebrati fossili delle colline Toscane .

R. Lawley. 1877. Resti di Felsinotherium forestii. Atti della Società Toscana di Scienze Naturali, Pisa 3(2):341-342.

R. Lerosey-Aubril and L. Angiolini. 2009. Permian trilobites from Antalya Province, Turkey, and enrollment in late Palaeozoic trilobites. Turkish Journal of Earth Sciences 18:427-448.

R. Lerosey-Aubril and R. Feist. 2006. Late ontogeny and hypostomal condition of a new cyrtosymboline trilobite from the Famennian of Morocco. Palaeontology 49(5):1053-1068.

R. Lerosey-Aubril. 2012. The late Palaeozoic trilobites of Iran and Armenia and their palaeogeographical significance. Geological Magazine 149:1023-1045.

R. Li and P. Copper. 2006. Early Silurian (Llandovery) orthide brachiopods from Anticosti Island, eastern Canada: the O/S extinction recovery fauna. Special Papers in Palaeontology 76:5-71.

R. Ludvigsen and B. D. E. Chatterton. 1991. The peculiar Ordovician trilobite Hypodicranotus from the Whittaker Formation, District of Mackenzie. Canadian Journal of Earth Sciences 28(4):616-622.

R. Ludvigsen and R. P. Tripp. 1990. Silurian trilobites from the northern Yukon Territory. Life Sciences Contributions, Royal Ontario Museum (153):1-59.

R. Ludvigsen, S. R. Westrop, and C. H. Kindle. 1989. Sunwaptan (Upper Cambrian) trilobites of the Cow Head Group, western Newfoundland, Canada. Palaeontographica Canadiana 6:1-175.

R. Ludvigsen. 1975. Ordovician formations and faunas, southern Mackenzie Mountains. Canadian Journal of Earth Sciences 12:663-697.

R. Ludvigsen. 1976. New cheirurinid trilobites from the lower Whittaker Formation (Ordovician), southern Mackenzie Mountains. Canadian Journal of Earth Sciences 13(7):947-959.

R. Ludvigsen. 1979. A trilobite zonation of Middle Ordovician rocks, southwestern District of Mackenzie. Geological Survey of Canada Bulletin 312:1-99.

R. Ludvigsen. 1979. Lower Ordovician trilobites of the Oxford Formation, eastern Ontario. Canadian Journal of Earth Sciences 16:859-865.

R. Ludvigsen. 1987. Reef trilobites from the Formosa Limestone (Lower Devonian) of Southern Ontario. Canadian Journal of Earth Sciences 24:676-688.

R. Lund and C. Poplin. 1997. The Rhadinichthyids (paleoniscoid actinopterygians) from the Bear Gulch limestone of Montana (USA, Lower Carboniferous). Journal of Vertebrate Paleontology 17(3):466-486.

R. Lund and W. Lund. 1984. New genera and species of coelacanths from the Bear Gulch limestone (Lower Carboniferous) of Montana (U.S.A.). Geobios 17:237-244.

R. Lund. 1982. Harpagofututor volsellorhinus new genus and species (Chondrichthyes, Chondrenchelyiformes) from the Namurian Bear Gulch Limestone, Chondrenchelys problematica Traquair (Visean), and their sexual dimorphism. Journal of Paleontology 56(4):938.

R. Lund. 1983. On a dentition of Polyrhizodus (Chondrichthyes, Petalodontiformes) from the Namurian Bear Gulch Limestone of Montana. Journal of Vertebrate Paleontology 3(1):1-6.

R. Lund. 1985. The morphology of Falcatus falcatus (St. John and Worthen), a Mississippian stethacanthid chondrichthyan from the Bear Gulch Limestone of Montana. Journal of Vertebrate Paleontology 5(1):1-19.

R. Lund. 1986. On Damocles serratus, nov. gen. et sp. (Elasmobranchii: Cladodontida) from the Upper Mississippian Bear Gulch Limestone of Montana. Journal of Vertebrate Paleontology 6(1):12-19.

R. Lund. 1988. New information on Squatinactis caudispinatus (Chondrichthyes, Cladodontida) from the Chesterian Bear Gulch Limestone of Montana. Journal of Vertebrate Paleontology 8(3):340-342.

R. Lund. 1989. New petalodonts (Chondrichthyes) from the Upper Mississippian Bear Gulch Limestone (Namurian Eb) of Montana. Journal of Vertebrate Paleontology 9(3):350-368.

R. Lydekker. 1887. Catalogue of the Fossil Mammalia in the British Museum (Natural History) 5:1-345.

R. Lydekker. 1887. The Cetacea of the Suffolk Crag. Quarterly Journal of the Geological Society of London 43:7-18.

R. Lydekker. 1892. On a remarkable Sirenian jaw from the Oligocene of Italy and its bearing on the evolution of the Sirenia. Proceedings of the Zoological Society of London 1892:77-83.

R. Lydekker. 1894. Cetacean skulls from Patagonia. Anales del Museo de la Plata II:1-13.

R. M. Bebej, I. S. Zalmout, and A. A. A. El-Aziz, M. S. M. Antar, P. D. Gingerich. 2015. First remingtonocetid archaeocete (Mammalia, Cetacea) from the middle Eocene of Egypt with implications for biogeography and locomotion in early cetacean evolution. J.

R. M. Bebej, M. ul-Haq, and I. S. Zalmout, P. D. Gingerich. 2012. Morphology and function of the vertebral column in Remingtonocetus domandaensis (Mammalia, Cetacea) from the middle Eocene Domanda Formation of Pakistan. Journal of Mammalian Evolution 19:7.

R. M. Chandler. 1990. Fossil birds of the San Diego Formation, Late Pliocene, Blancan, San Diego County, California. Ornithological Monographs 44:73-161.

R. M. Feldmann and C. E. Schweitzer. 2004. Decapod Crustaceans from the Lower Miocene of North-Western Venezuela (Cerro La Cruz, Castillo Formation). Special Papers in Palaeontology 71:7-22.

R. M. Feldmann and F. D. Holland, Jr. 1971. A new species of lobster from the Cannonball Formation (Paleocene) of North Dakota. Journal of Paleontology 45(5):838-843.

R. M. Feldmann and P. A. Maxwell. 1990. Late Eocene decapod Crustacea from north Westland, South Island, New Zealand. Journal of Paleontology 64(5):779-797.

R. M. Feldmann and P. A. Maxwell. 1999. A new species of glypheid lobster, Glyphea christeyi (Decapoda: Palinura), from the Eocene (Bortonian) Waihao Greensand, South Canterbury New Zealand. New Zealand Journal of Geology and Geophysics 42:75-78.

R. M. Feldmann, C. E. Schweitzer, and A. Encinas. 2005. New decapods from the Navidad Formation (Miocene) of Chile. Journal of Crustacean Biology 25(3):427-449.

R. M. Feldmann, C. E. Schweitzer, and D. McLauchlan. 2006. Additions to the records for decapod Crustacea from Motunau and Glenafric Beaches, North Canterbury, New Zealand. New Zealand Journal of Geology and Geophysics 49:417-427.

R. M. Feldmann, C. E. Schweitzer, and L. M. Baltzly, O. A. Bennett, A. R. Jones, F. F. Mathias, K. L. Weaver, and S. L. Yost. 2013. New and previously known decapod crustaceans from the Late Cretaceous of New Jersey and Delaware, USA. Bulletin of the Mizu.

R. M. Feldmann, C. E. Schweitzer, and P. A. Maxwell, B. M. Kelley. 2008. Fossil isopod and decapod crustaceans from the Kowai Formation (Pliocene) near Makikihi, South Canterbury, New Zealand. New Zealand Journal of Geology and Geophysics 51:43-58.

R. M. Feldmann, C. E. Schweitzer, and S. A. Marenssi. 2003. Decapod crustaceans from the Eocene La Meseta Formation, Seymour Island, Antarctica: a model for preservation of decapods. Journal of the Geological Society, London 160:151-160.

R. M. Feldmann, D. M. Tshudy, and M. R. A. Thomson. 1993. Late Cretaceous and Paleocene decapod crustaceans from james Ross Basin Antarctic Peninsula. The Paleontological Society Memoir 28 .

R. M. Feldmann, G. Crisp, and D. Pirrie. 2002. A new species of glypheoid lobster, Pseudoglyphea foersteri (Decapoda: Astacidea: Mecochiridae) from the Lower Jurassic (Pliensbachian) of Raasay, Inner Hebrides, UK. Palaeontology 45(1):23-32.

R. M. Feldmann, K. L. Bice, and C. E. Schweitzer Hopkins, E. W. Salva, K. Pickford. 1998. Decapod Crustaceans From The Eocene Castle Hayne Limestone, North Carolina: Paleoceanographic Implications. Journal of Paleontology: The Paleontological Society Memo.

R. M. Feldmann, K. L. Bice, and C. S. Hopkins, E. W. Salva, K. Pickford. 1998. Decapod Crustaceans from the Eocene Castle Hayne Formation, North Carolina: Paleoceanographic Implications. Journal of Paleontology 72(Supplement):1-28.

R. M. Feldmann, S. Casadio, and L. Chirino-Galvez, and M. Aguirre-Urreta. 1995. Fossil decapod crustaceans from the Jaguel and Roca Formations (Maastrichtian-Danian) of the Neuquen Basin, Argentina. Journal of Paleontology 69(5 II):1-22.

R. M. Finks, E. L. Yochelson, and R. P. Sheldon. 1961. Stratigraphic implications of a Permian sponge occurrence in the Park City Formation of western Wyoming. Journal of Paleontology 35:564-568.

R. M. Finks, K. Hollocher, and K. J. Thies. 2011. A major Eocene sponge fauna (Castle Hayne Formation, North Carolina). Journal of the Carolina Academy of Science 127(2):39-175.

R. M. Finks, R. E. H. Reid, and J. K. Rigby. 2004. Porifera (Demospongea, Hexactinellida, Heteractinida, Calcarea). Treatise on Invertebrate Paleontology Part E, Revised E(3):1-872.

R. M. Finks. 1955. Conularia in a sponge from the west Texas Permian. Journal of Paleontology 29(5):831-836.

R. M. Finks. 1960. Late Paleozoic sponge faunas of the Texas region: The siliceous sponges. Bulletin of the American Museum of Natural History 120(1):1-160.

R. M. Finks. 1971. A new Permian eutaxicladine demosponge, mosaic evolution, and the origin of the Dicranocladina. Journal of Paleontology 45(6):977-997.

R. M. Finks. 1995. Some new genera of Paleozoic calcareous sponges. University of Kansas Paleontological Contributions 6:1-9.

R. M. Finks. 2010. The sponge family Guadalupiidae in the Texas Permian. Journal of Paleontology 84(5):821-847.

R. M. Hernon. 1935. The Paradise Formation and its fauna. Journal of Paleontology 9(8):653-696.

R. M. Jeffords. 1947. Pennsylvanian lophophyllidid corals. University of Kansas Paleontological Contributions, Coelenterata 1:1-84.

R. M. Johnston. 1887. Contribution to the palaeontology of the upper Palaeozoic rocks of Tasmania. Papers and Proceedings of the Royal Society of Tasmania for 1886 .

R. M. Jolley. 1983. The Clearville Sandstone Member of the Middle Devonian Mahantango Formation in parts of Pennsylvannia, Maryland, West Virginia, and Virgina. unpublished PhD dissertation- University of North Carolina at Chapel Hill .

R. M. Linsley and E. L. Yochelson. 1973. Devonian carrier shells (Euomphalidae) from North America and Germany. United States Geological Survey Professional Paper 824:1-23.

R. M. Linsley and J. S. Peel. 1983. Gonad pouches in a new clam-like monoplacophoran from the Silurian of Sweden. Lethaia 16(3):273-280.

R. M. Linsley and R. V. Kesling. 1982. A Detroit River (Middle Devonian) Fauna from the Subsurface of Illinois. Journal of Paleontology 56(5):1079-1092.

R. M. Linsley. 1968. Gastropods of the Middle Devonian Anderdon Limestone. Bulletins of American Paleontology 54(244):333-465.

R. M. Linsley. 1973. The Omphalocirridae: a new family of Palaeozoic Gastropoda which exhibits sexual dimorphism. Memoirs of the National Museum of Victoria 39(1):33-54.

R. M. Owens and R. A. Fortey. 2009. Silicified Upper Ordovician trilobites from Pai-Khoi, arctic Russia. Palaeontology 52(6):1209-1220.

R. M. Owens and W. Hammann. 1990. Proetide triolobites from the Cystoid Limestone (Ashgill) of NW Spain, and the suprageneric classification of related forms. Palaeontologische Zeitschrift 64(3/4):221-244.

R. M. Owens. 1970. The middle Ordovician of the Oslo region, Norway 23. The Triolobite Family Proetidae. Norsk Geologisk Tidsskrift 50:309-332.

R. M. Owens. 1973. Ordovician Proetidae (Trilobita) from Scandinavia. Norsk Geologisk Tidsskrift 53:117-181.

R. M. Owens. 1974. The Affinities of the Trilobite Genus Scharyia, with a Description of two new species. Palaeontology 17(3):685-697.

R. M. Owens. 1978. The trilobite genera Panarchaeogonus Opik, Isbergia Warburg and Cyamops gen. nov. from the Ordovician of Balto-Scandia and the British Isles. Norsk Geologisk Tidsskrift 58:199-219.

R. M. Owens. 2004. Late Ordovician and early Silurian Proetida (Trilobita) from North-Western and Central Europe. Palaeontology 47(3):557-578.

R. M. Shackleton, A. C. Ries, and P. R. Bird, P. R. Filbrandt, J. B. Lee, G. C. Cunningham. 1990. The Batin Melange of NE Oman. The Geology and Tectonics of the Oman Regian. Geol. Soc. Spec. Publ. 49:673-696.

R. M. Stainforth. 1948. Description, correlation, and paleoecology of Tertiary Cipero Marl, Trinidad, BWI. Bulletin of the American Association of Petroleum Geologists 32(7):1292-1330.

R. M. West. 1980. Middle Eocene large mammal assemblage with Tethyan affinities, Ganda Kas region, Pakistan. Journal of Paleontology 54(3):508-533.

R. Majima. 1989. Cenozoic fossil Naticidae (Mollusca: Gastropoda) in Japan. Bulletins of American Paleontology 96(331):1-159.

R. Mane, J. Ribe, and J. Magrans, E. Ferrer. 2003. Ictiologia fossil del Plioce del Baix Llobregat III Els Batoideus (condrictis hipotremats). Batalleria 11:43-52.

R. Mannil and M. Rubel. 1999. Selected brachiopod and trilobite communities of the East Baltic Silurian. In A. J. Boucot, J. D. Lawson (eds.), Paleocommunities--a case study from the Silurian and Lower Devonian .

R. Marasti. 1973. La fauna tortoniana del T. Stirone (limite Parmense-Piacentino). Bollettino della Societa Paleontologica Italiana 12(1):76-120.

R. Marocco and C. d.e. Muizon. 1988. Los vertebrados del Neogeno de La Costa Sur del Perú: Ambiente sedimentario y condiciones de fosilización. Bulletin de l'Institut Frances d'Etudes Andines 17(2):105-117.

R. Marquet and H. H. Dijkstra. 2000. Pliocene species of Aequipecten (Mollusca, Bivalvia, Pectinidae) from the North Sea Basin. Contributions to Tertiary and Quaternary Geology 37(3-4):39-55.

R. Marquet, J. Lenaerts, and C. Karnekamp, R. Smith. 2008. The molluscan fauna of the Borgloon Formation in Belgium (Rupelian, Early Oligocene). Palaeontos 12:1-99.

R. Marquet. 1997. Pliocene gastropod faunas from Kallo (Oost-Vlaanderen, Belgium) - Part 2. Caenogastropoda: Potamididae-Tornidae. Contributions to Tertiary and Quaternary Geology 34(1-2):9-29.

R. Marquet. 2002. The Neogene Amphineura and Bivalvia (Protobranchia and Pteriomorphia) from Kallo and Doel (Oost Vlaanderen, Belgium). Palaeontos 2:1-100.

R. Marquet. 2005. The Neogene Bivalvia (Heterodonta and Anomalodesmata) and Scaphopoda from Kallo and Doel (Oost Vlaanderen, Belgium). Palaeontos 6:1-142.

R. Martini, L. Zaninetti, and B. Lathuillière, S. Cirilli, J.-J. Cornée, M. Villeneuve. 2004. Upper Triassic carbonate deposits of Seram (Indonesia): palaeogeographic and geodynamic implications. Palaeogeography, Palaeoclimatology, Palaeoecology 206(1-2):.

R. Marty, R. Dunbar, and J. B. Martin, P. Baker. 1988. Late Eocene diatomite from the Peruvian coastal desert, coastal upwelling in the eastern Pacific, and Pacific circulation before the terminal Eocene event. Geology 16:818-822.

R. Matteucci and A. Russo. 2005. The Middle Eocene siliceous sponges from Val di Chiampo (Lessini Mountains, northern Italy). Museologia Scientifica e Naturalistica, Volume Speciale .

R. Mawson and J. A. Talent. 1989. Late Emsian-Givetian Stratigraphy and Conodont Biofacies - Carbonate Slope and Offshore Shoal to Sheltered Lagoon and Nearshore Carbonate Ramp - Broken River, North Queensland, Australia. Courier Forschungsinstitut Sencke.

R. Mawson, D. Smith, and JA Talent. 2002. Silicified Early Devonian (Lochkovian) gastropods from Windellama, south-eastern Australia. Memoirs of the Association of Australasian Palaeontologists 27:59-73.

R. McGhee. 1979. The Paleoeskimo Occupations at Port

Refuge, High Arctic Canada. National Museum of Man Mercury Series Paper 92 .

R. McGhee. 1984. The Thule village at Brooman Point, High Arctic Canada. National Museum of Man Mercury Series Paper 125 .

R. Molin. 1859. Sulle reliquie d'un Pachyodon dissoterrate a Libano due ore Nord-Est di Belluno in mezzo all arenaria grigia. Sitzungsberichte der mathematisch-Naturwissenschaftlichen classe der Kaiserlichen Akademie der Wissenschaften. Wien. 25:117-128.

R. Myczynski. 1989. Ammonite biostratigraphy of the Tithonian of Western Cuba. Annales Societatis Geologorum Poloniae 59:43-125.

R. N. Holdaway and T. H. Worthy. 1994.

A new fossil species of shearwater Puffinus from the Late Quaternary of the South Island, New Zealand, and notes on the biogeography and evolution of the Puffinus gavia superspecies. Emu 94:201-214.

R. N. P. Goodall. 1994. Chilean dolphin Cephalorhynchus eutropia (Gray, 1846). Handbook of marine mammals .

R. N. P. Goodall. 2002. Peale's dolphin Lagenorhynchus australis. In W. F. Perrin, B. Wursig and J. G. M. Thewissen (eds.), Encyclopedia of Marine Mammals .

R. O. Fay and A. A. Graffham. 1982. Biostratigraphic and paleontological studies. Echinoderm faunas from the Bromide Formation (Middle Ordovician) of Oklahoma: Lawrence, Kansas, University of Kansas Paleontological Institute Monograph 11 .

R. O. Fay, A. A. Graffham, and J. Sprinkle. 1982. Previous studies of Bromide echinoderms. Echinoderm faunas from the Bromide Formation (Middle Ordovician) of Oklahoma: Lawrence, Kansas, University of Kansas Paleontological Institute Monograph 11 .

R. O. Zorzin, S. T. Castellani, and V. I. Frisone, E. R. Quaggiotto. 2012. Le campagne di scavo del Museo Paleontologico di Roncà in località Monte Duello (Comune di Montecchia di Crosara) e Valle della Chiesa (Comune di Roncà), nei Monti Lessini veronesi.

R. Osberger. 1954. Contributions to the geology of Timor: IV. notes on the plio-pleistocene corals of Timor. Indonesian Journal for Natural Science 110:80-82.

R. Osberger. 1954. Jungtertiäre Korallen von Java. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 100:119-158.

R. Osberger. 1954. Research on fossil corals from Java. Indonesian Journal for Natural Science 110:201-205.

R. Osberger. 1955. Beschreibung einiger tertiärer Korallen von Java [Description of some Tertiary corals from Java]. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte (6):252-256.

R. Owen. 1843. Appendix to Professor Henslow's paper, consisting of a description of the fossil tympanic bones referable to four distinct pecies of Balaena. Proceedings of the Geological Society of London 4(1):283-286.

R. Owen. 1846. A History of British Fossil Mammals and Birds .

R. Owen. 1855. On the fossil skull of a mammal (Prorastomus sirenoides, Owen), from the Island of Jamaica. Quarterly Journal of the Geological Society of London 11:541-543.

R. Owen. 1865. A monograph of the fossil Reptilia of the Liassic formations. Part I, Sauropterygia. Palaeontographical Soceity Monographs 17(75):1-40.

R. Owen. 1870. Monograph of the British fossil Cetacea from the Red Crag. Memoirs of the Palaeontological Society 23.

R. P. Angliss and R. B. Outlaw. 2005. Alaska marine mammal stock assessments. NOAA Technical Memorandum NMFS-AFSC .

R. P. Kachhara, K. Bigyapati Devi, and R. L. Joghawat. 2011. Molluscan Assemblage from the Marine Palaeocene Sequence in Southwestern Kachchh, Gujarat. Journal Gological Society of India 78:81-91.

R. P. Lopes and L. R. Simone. 2012. New fossil records of Pleistocene Marine mollusks in Southern Brazil. Revista Brasileira de Paleontologia 15(1):49-56.

R. P. Lopes, L. R. Simone, and S. R. Dillenburg, C. L. Schultz, J. C. Pereira. 2013. A middle Pleistocene marine molluscan assemblage from the Southern coastal plain of Rio Grande do Sul State, Brazil. Revista Brasileira de Paleontologia 16(3):343-360.

R. P. S. Jefferies. 1961. The palaeoecology of the Actinocamax plenus subzone (lowest Turonian) in the Anglo-Paris basin. Palaeontology 4(4):609-647.

R. P. Stevens. 1858. Description of new Carboniferous fossils from the Appalachia, Illinois and Michigan coal fields. American Journal of Science 25:258-265.

R. P. Tiwari and R. P. Kachhara. 2003. Molluscan biostratigraphy of the Tertiary sediments of Mizoram, India. Journal of the Paleontological Society of India 48:65-88.

R. P. Tiwari, G. Barman, and PP Satsangi. 1997. Miocene crabs from Mizoram, India. Journal of the Palaeontological Society of India 42:127-132.

R. P. Tripp, A. Williams, and CRC Paul. 1981. On an exposure of the Ordovician superstes Mudstones at Colmonell, Girvan District, Strathclyde. Scottish Journal of Geology 17:21-25.

R. P. Tripp, D. M. Rudkin, and W. R. Evitt. 1997. Silicified trilobites of the genus Sphaerocoryphe from the Middle Ordovician of Virginia. Canadian Journal of Earth Sciences 34:770-788.

R. P. Tripp. 1957. The trilobite Encrinurus multisegmentatus (Portlock) and allied Middle and Upper Ordovician species. Palaeontology 1(1):60-72.

R. P. Tripp. 1980. Trilobites from the Ordovician Ardwell Group of the Craighead Inlier, Girvan district, Scotland. Earth Sciences 71:147-157.

R. P. Whitfield. 1882. Descriptions of new species of fossils from Ohio, with remarks on some of the geological formations in which they occur. Annals of the New York Academy of Sciences 2:193-244.

R. P. Whitfield. 1886. Notice of geological investigations along the eastern shore of Lake Champlain, conducted by Prof. H.J. Seely and Pres. Ezra Brainerd, of Middlebury College, with descriptions of the new fossils discovered. Bulletin of the American M.