Supplementary Material, File 2

R. Howse. 1857. IV. Notes on the Permian system of the counties of Durham and Northumberland. The Annals and Magazine of Natural History, Second Series 19(109):33-52.

R. I. Murchison and H. E. Strickland. 1837. On the upper formations of the New Red System in Gloucestershire, Worcestershire and Warwickshire, showing that the Red (Saliferous) marls with an included band of sandstone, represent the Keuper or Marnes irise.

R. I. Rao and M. F. Tortello. 1998. Tremadoc conodonts and trilobites from the Cardonal Formation, Incamayo Creek, Salta Province, northwestern Argentina. In H. Szaniawski (ed.), Proceedings of the Sixth European Conodont Symposium (ECOS VI)- Paleontolog.

R. Imaizumi. 1952. A Miocene crab, Hyas tsuchidai n. sp. from the Wakkanai Formation of Teshio Province, Hokkaido. Transactions and Proceedings of the Paleontological Society of Japan, N.S. (5):179-183.

R. Imaizumi. 1952. A Miocene crab, Tymolus kamadai n. sp. from the Numanouchi formation of the Joban Coal-field. Transactions and Proceedings of the Paleontological Society of Japan, N.S. (7):201-204.

R. Imaizumi. 1952. Mursia takahashii n. sp. (Brachyura) from Goishi in the Sendai Area. 4:88-95.

R. Imaizumi. 1957. A Miocene fossil crab Paratymolus yabei n.sp. from the Nagana Prefecture. 25:26-30.

R. Imaizumi. 1957. An Interesting Crustacean Remain, Ctenocheles sujakui n. sp. from the Paleogene of Kyushu, Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. (32):299-304.

R. Imaizumi. 1957. Three New Miocene Species of Callianassa from Nagano Prefecture. Transactions and Proceedings of the Paleontological Society of Japan, N.S. (27):81-85.

R. Imaizumi. 1959. A Fossil Crab, Hexapus Nakajimai n.sp. from Joban Coal Field. Japanese Journal of Geology and Geography .

R. Imaizumi. 1959. Callianassa Bona n. sp. from near Sendai, Miyagi Prefecture. Japanese Journal of Geology and Geography 30:31-37.

R. Imaizumi. 1959. Fossil Crab, Charybdis cfr. japonica (A. M. Edwards) from Hodogaya Bluff, Yokohama, Japan. Japanese Journal of Geology and Geography .

R. Imaizumi. 1965. Miocene Macrocheria from Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. .

R. J. Aldridge, S. Turner, and GL Jones, DAT Harper. 1996. Late Llandovery thelodonts and conodonts from the Kilbride Formation, Co. Galway, western Ireland. Geological Journal 31(4):359-367.

R. J. Azmi and V. P. Pancholi. 1983. Early Cambrian (Tommotian) conodonts and other shelly microfauna from the upper Krol of Mussoorie Syncline, Garhwal Lesser Himalaya with remarks on the Precambrian-Cambrian boundary. Himalayan Geology 11:360-372.

R. J. Batt. 1995. A test of a new technique illustrating faunal dominance trends: Application to the “Trilobite Beds” interval of the Middle Devonian Wanakah Shale in western New York. Lethaia 28:245-258.

R. J. Carpenter, G. J. Jordan, and M. K. Macphail, R. S. Hill. 2012. Near-tropical Early Eocene terrestrial temperatures at the Australo-Antarctic margin, western Tasmania. Geology 40(3):267-270.

R. J. Carpenter. 1991. Palaeovegetation and Environment at Cethana, Tasmania. .

R. J. Cordiner and D. A. Bone. 1986. Exposures of the Barton Beds along the Highland Water in the New Forest, Hants. Tertiary Research 7(4):133-137.

R. J. Cuffey and P. Copper. 1989. Honora Bay bryozoan bioherms, Lower Silurian, Manitoulin Island, Ontario. In H. H. J. Geldsetzer, N. P. James, and G. E. Tebbutt (eds.), Reefs, Canada and adjacent areas. Canadian Soc. Petrol. Geologists, Memoir 13:290-2.

R. J. Cuffey, J. A. Gooden-Seay, and P. H. Heckel. 1991. Incipient bryozoan reef-mounds in the Upper Pennsylvanian of southeastern Kansas (USA). in F. P. Bigey, ed., Bryozoaires actuels et fossiles .

R. J. Cuffey. 1967. Bryozoan Tabulipora carbonaria in Wreford megacyclothem (Lower Permian) of Kansas. University of Kansas Paleontological Contributions, Bryozoa 1:1-96.

R. J. Cuffey. 1989. Lock Haven coral-bryozoan reef, Middle Silurian, Pennsylvania. In H. H. J. Geldsetzer, N. P. James, and G. E. Tebbutt (eds.), Reefs, Canada and adjacent areas. Canadian Soc. Petrol. Geologists, Memoir 13:285-287.

R. J. Elias and D. Lee. 1993. Microborings and growth in Late Ordovician halysitids and other corals. Journal of Paleontology 67(6):922-934.

R. J. Elias. 1985. Solitary rugose corals of the Upper Ordovician Montoya Group, Southern New Mexico and Westernmost Texas. Journal of Paleontology Memoir 59(5):1-58.

R. J. F. Jenkins. 1974. A new giant penguin from the Eocene of Australia. Palaeontology 17(2):291-310.

R. J. F. Jenkins. 1975. The fossil crab Ommatocarcinus corioensis (Cresswell) and a review of related Australiasian species. Memoirs of the National Museum of Victoria 36:33-62.

R. J. G. Savage, D. P. Domning, and J. G. M. Thewissen. 1994. Fossil Sirenia of the West Atlantic and Caribbean region. V. The most primitive known sirenian, Prorastomus sirenoides Owen, 1855. Journal of Vertebrate Paleontology 14(3):427-449.

R. J. Horný and J. S. Peel. 1995. A new Silurian gastropod from Bohemia with the operculum in situ. Journal of the Czech Geological Society 40(4):50-60.

R. J. Horný and J. S. Peel. 1996. Carcassonnella, a new Lower Ordovician bellerophontiform mollusc with dorsally located retractor muscle attachments (Class Tergomya). Bulletin of the Czech Geological Survey 71(4):305-311.

R. J. Horný and J.I. Henry. 1999. A letter by Joachim Barrande to Daniel Oehlert concerning Praenatica (Gastropoda) written on May 12 1882. Journal of the Czech Geological Society 44:117-125.

R. J. Horný and V. Vonka. 2001. Sinuites community in the Upper Ordovician Bohdalec Formation at Praha-Radotín (Barrandian Area, Czech Republic). asopis Národniho Muzea, ada píodovdná 170(1-4):42-46.

R. J. Horný. 1952. Two new representantives of the family Murchisonidae Koken (Gastropoda) from the Silurian of central Bohemia. Sbornik Ustredního Ústavuu Geologického 19:209-228.

R. J. Horný. 1953. New gastropods from the Silurian of Central Bohemia. Sbornik Ustredního Ústavuu Geologického 20:189-211.

R. J. Horný. 1955. Palaeozygopleuridae nov. fam. (Gastropoda) ze stredoceskeho devonu. Sbornik Ustredního Ústavuu Geologického oddíl Paleontologicky 21(1):17-74.

R. J. Horný. 1956. Tryblidiinae Pilsbry, 1899 (Gastropoda) from the Silurian of central Boehmia. Sbornik Ustredního Ústavu Geologického oddíl Paleontologicky 22:73-102.

R. J. Horný. 1961. New genera of Bohemian Monoplacophora and patellid Gastropoda. Vestník Ústredniho Ústavu Geologického 36(5):299-302.

R. J. Horný. 1963. Lower Paleozoic Bellerophontina (Gastropoda) of Bohemia. Sborník Geologickych Ved 2:57-164.

R. J. Horný. 1963. Lower Paleozoic Monoplacophora and pattelid Gastropoda (Mollusca) of Bohemia. Sbornik Ustredního Ústavuu Geologického oddíl Paleontologicky 28(1):1-77.

R. J. Horný. 1963. New finds of Silurian Drahomirinae (Monoplacophora) in Bohemia and notes on the ontogeny and bionomy. asopis Národni Muzea - Oddíl pírodovdny 132(2):79-89.

R. J. Horný. 1963. On the systematic position of cyrtonelloids (Mollusca). asopis Národni Muzea - Oddíl pírodovdny 132(2):90-94.

R. J. Horný. 1964. New Lower Paleozoic gastropod genera of Bohemia (Mollusca). asopis Národni Muzea - Oddíl pírodovdny 133:211-216.

R. J. Horný. 1964. The Middle Cambrian Pelagiellacea of Bohemia (Mollusca). Sborník Národniho Muzea v Praze 20(B):133-140.

R. J. Horný. 1970. Undicornu gen. n., a new minute monoplacophoran mollusc from the Silurian of Bohemia. asopis Národni Muzea - Oddíl pírodovdny 137(3-4):30-32.

R. J. Horný. 1992. New Lower Devonian gastropod genera of Bohemia (Mollusca). asopis Národniho Muzea, ada píodovdná 158(1-4):105-107.

R. J. Horný. 1992. New Lower Devonian Gastropoda and Tergomya (Mollusca) of Bohemia. asopis Národniho Muzea, ada píodovdná 159(1-4):99-119.

R. J. Horný. 1994. Branzovya, a new Lower Devonian murchisoniacean gastropod from Bohemia. asopis Národniho Muzea, ada píodovdná 162(1-4):100-100.

R. J. Horný. 1997. Circumbilical retractor muscle attachment area in the Ordovician trilobed bellerophontoidean gastropod Tritonophon peeli sp. n. (Mollusca). Bulletin of the Czech Geological Survey 72(4):333-338.

R. J. Horný. 1997. New, rare, and better recognized Ordovician Tergomya and Gastropoda. Bulletin of the Czech Geological Survey 72(3):223-237.

R. J. Horný. 1997. Ordovician Tergomya and Gastropoda (Mollusca) of the Anti-Atlas (Morocco). Acta Musei Nationalis Pragae, Series B - Historia Naturalis 53(3-4):37-78.

R. J. Horný. 1997. Quasisininuites rapax gen. et sp. n., a new Ordovician sinuate cyrtonellid mollusc (Class Tergomya) with involute shell from Morocco. Bulletin of the Czech Geological Survey 73(4):345-350.

R. J. Horný. 1997. Shell breakage and repair in explanate bellerophontoidean gastropods from the Middle Ordovician of Bohemia. Bulletin of the Czech Geological Survey 72(2):159-170.

R. J. Horný. 2000. Barrandicellopsis, a new Ordovician archinacelloid genus (Mollusca, Gastropoda). Bulletin of the Czech Geological Survey 75(2):145-152.

R. J. Horný. 2000. Mode of life of some Silurian and Devonain platyceratids. Bulletin of the Czech Geological Survey 75(2):135-143.

R. J. Horný. 2000. Tachloconcha gen. n. and Spirina Kayser, 1889, two additional Lower Palaeozoic gastropods with preserved retractor muscle attachment scars. Bulletin of the Czech Geological Survey 75(4):415-426.

R. J. Horný. 2001. Novakopteron, a new Beraunia-like frilled genus from the Silurian of Bohemia (Mollusca, Gastropoda). asopis Národniho Muzea, ada píodovdná 170(1-4):37-41.

R. J. Horný. 2002. Anomalous development of apertural margin and failed predation in the Lower Devonian gastropod Anarconcha pulchra from the Barrandian (Czech Republic). asopis Národniho Muzea, ada píodovdná 171(1-4):1-6.

R. J. Horný. 2002. Krolmusium, a new genus of the subfamily Agnesiinae (Gastropoda) from the Lower Devonian of Bohemia (Czech Republic). asopis Národniho Muzea, ada píodovdná 171(1-4):7-11.

R. J. Horný. 2004. Kosovina, a new Silurian tryblidiid genus (Mollusca, Tergomya) from Bohemia (Czech Republic). Acta Musei Nationalis Pragae, Series B, Natural History 60(3-4):143-148.

R. J. Horný. 2004. Shell morphology, presumed mode of life, and shell repair of the Lower Devonian paragastropod Antigyra from Bohemia (Czech Republic). asopis Národniho Muzea, ada píodovdná 173(1-4):65-76.

R. J. Horný. 2005. Muscle scars, systematics and mode of life of the Silurian family Drahomiridae (Mollusca, Tergomya). Acta Musei Nationalis Pragae, Series B - Historia Naturalis 61(1-2):53-76.

R. J. Horný. 2005. Two new bellerophontiform tergomyans (Mollusca) from the Early Devonian (Lochkovian) of the Barrandian Area, Bohemia (Czech Republic). asopis Národniho Muzea, ada píodovdná 174(1-4):7-12.

R. J. LeBlanc and J.O. Barry. 1941. Fossiliferous localities of Midway Group in Louisiana. Bulletin of the American Association of Petroleum Geologists 25(4):734-738.

R. J. Mutter and A. G. Neuman. 2008. New eugeneodontid sharks from the Lower Triassic Sulphur Mountain Formation of western Canada. In L. Cavin, A. Longbottom, M. Richter (eds.), Fishes and the Break-up of Pangaea. Geological Society, London, Special Pub.

R. J. Mutter. 1998. Zur systematischen Stellungh einiger Bezahnugsreste von Acrodus georgii sp. nov. (Selachii, Hybodontoidea) aus der Grenzbitumenzone (Mittlere Trias) des Monte San Giorgio (Kanton Tessin, Schweiz). Eclogae Geologicae Helvetiae 91:513-51.

R. J. Powell and G. R. Baum. 1982. Eocene biostratigraphy of South Carolina and its relationship to Gulf Coastal Plain zonations and global changes of coastal onlap. Geological Society of America Bulletin 93:1099-1108.

R. J. Prokop. 2011. Carpocrinus chlupaci sp. n. and Bouskacrinus solus gen. et sp. n. (Echinodermata, Crinoidea) from the Konprusy Limestone (Lower Devonian, Pragian) of the Barrandian area, Czech Republic. Journal of the National Museum (Prague), Natural.

R. J. Ross, Jr. 1951. Stratigraphy of the Garden City Formation in northeastern Utah, and its trilobite faunas. Yale Peabody Museum of Natural History Bulletin 6:1-161.

R. J. Ross, Jr. 1953. Additional Garden City (Early Ordovician) trilobites. Journal of Paleontology 27(5):633-646.

R. J. Ross, Jr. 1965. Early Ordovician trilobites from the Seward Peninsula, Alaska. Journal of Paleontology 39(1):17-20.

R. J. Ross, Jr. 1972. Fossils from the Ordovician bioherm at Meiklejohn Peak, Nevada. United States Geological Survey Professional Paper 685.

R. J. Ross, Jr. and F. C. Shaw. 1972. Distribution of the Middle Ordovician Copenhagen Formation and its trilobites in Nevada. United States Geological Survey Professional Paper 749:1-33.

R. J. Ross, Jr. and H. B. Barnes. 1967. Some Middle Ordovician Brachiopods and Trilobites from the Basin Ranges, Western United States. United States Geological Survey Professional Paper 523-D.

R. J. Ross, Jr., T. B. Nolan, and AG Harris. 1980. The Upper Ordovician and Silurian Hanson Creek Formation of central Nevada. United States Geological Survey Professional Paper (1126-A-J):C1-C22.

R. J. Scarlett. 1983. Tereingaornis moisleyi -- a new Pliocene penguin. New Zealand Journal of Geology and Geophysics 26:419-428.

R. J. Scolaro. 1970. Note on Miocene Bryozoa from northwestern Florida. Tulane Studies in Geology and Paleontology 8(2):93-98.

R. J. W. Douglas and P. Harker. 1958. Mississippian succession in Mount Head area, Alberta. Jurassic and Carboniferous of Western Canada .

R. J. Wernlund. 1977. Biostratigraphy and paleocology of Holothurian sclerites from the Pinery Member, Bell Canyon Formation (Permian) of the Delaware Basin of West Texas. Master thesis, Geosciences Faculty of Texas Tech University .

R. J. Whittle, S. E. Gabbott, and R. J. Aldridge, J. N. Theron. 2007. Taphonomy and palaeoecology of a Late Ordovician caryocaridid from the Soom Shale Lagerstätte, South Africa. Palaeogeography, Palaeoclimatology, Palaeoecology 251(3-4):383-397.

R. J. Williams. 2002. Observations on the London Clay excavation at Aveley, Essex. Tertiary Research 21(1-4):95-112.

R. J. Willink. 1979. Some conservative and some highly-evolved Permian crinoids from eastern Australia. Alcheringa 3:117-134.

R. J. Willink. 1979. The crinoid genera Tribrachyocrinus McCoy, Calceolispongia Etheridge, Jimbacrinus Teichert and Meganotocrinus n. gen. in the Permian of eastern Australia. Palaeontographica Abt. A 165(3-6):137-194.

R. J. Willink. 1980. A new coiled-stemmed camerate crinoid from the Permian of eastern Australia. Journal of Paleontology 54:15-34.

R. J. Willink. 1980. Two new camerate crinoid species from the Permian of eastern Australia. Alcheringa 4(3-4):227-232.

R. J. Zhang. 1977. Bivalvia. Palaeontological Atlas of South-Central China 2:471-533.

R. J., J.r. Ross. 1970. Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada. United States Geological Survey Professional Paper 639:1-99.

R. K. P. Kikuchi and Z. M. A. Leao. 1997. Rocas (southwestern equatorial Atlantic, Brazil): an atoll built primarily by coralline algae. Proceedings of the 8th International Coral Reef Symposium (1):731-736.

R. K. Pabian and H. L. Strimple. 1974. Crinoid Studies Part I. Some Pennsylvanian crinoids from Nebraska. Part II. Some Permian crinoids from Nebraska, Kansas, and Oklahoma. Bulletins of American Paleontology 64(281):247-337.

R. K. Pabian and H. L. Strimple. 1978. Delocrinus vastus Lane and Webster from the Hughes Creek Shale (Lower Permian), Richardson County, Nebraska. Journal of Paleontology 52:1393-1394.

R. K. Pabian and J. A. Fagerstrom. 1972. Late Paleozoic trilobites from southeastern Nebraska. Journal of Paleontology 46(6):789-816.

R. K. Pabian and W. J. Rushlau. 2002. Taphonomic Analysis and Systematic Descriptions of Some Late Pennsylvanian and Early Permian Crinoids from Southeastern Nebraska, Eastern Kansas and Southwestern Iowa. Geological Survey Papers 20.

R. K. Pickerill and J. M. Hurst. 1983. Sedimentary facies, depositional environments, and faunal associations of the lower Llandovery (Silurian) Beechill Cove Formation, Arisaig, Nova Scotia. Canadian Journal of Earth Sciences 20:1761-1779.

R. Kellogg. 1922. Pinnipeds from Miocene and Pleistocene deposits of California. University of California Publications in Geological Sciences 13(4):23-132.

R. Kellogg. 1923. Description of an apparently new toothed cetacean from South Carolina. Smithsonian Miscellaneous Collections 76(7):1-7.

R. Kellogg. 1923. Description of two squalodonts recently discovered in the Calvert Cliffs, Maryland, and notes on the shark-toothed cetaceans. Proceedings of the U. S. National Museum 62(16):1-69.

R. Kellogg. 1924. A fossil porpoise from the Calvert Formation of Maryland. Proceedings of the United States National Museum 63(14):1-39.

R. Kellogg. 1925. A new fossil sirenian from Santa Barbara County, California. Carnegie Institution of Washington 348:9-11.

R. Kellogg. 1925. Fossil cetotheres from California. Contributions to Palaeontology from the Carnegie Institution of Washington 348(2):35-56.

R. Kellogg. 1925. On the occurrence of remains of fossil porpoises of the genus Eurhinodelphis in North America. Proceedings of the United States National Museum 66(26):1-40.

R. Kellogg. 1925. Two physeteroid whales from California. Contributions to Palaeontology from the Carnegie Institution of Washington 348(1):1-35.

R. Kellogg. 1927. Kentriodon pernix, a Miocene porpoise from Maryland. Proceedings of the United States National Museum 69(19):1-14.

R. Kellogg. 1927. Study of the skull of a fossil sperm-whale from the Temblor Miocene of Southern California. Contributions to Palaeontology from the Carnegie Institution of Washington .

R. Kellogg. 1929. A new cetothere from southern California. University of California Publications in Geological Sciences 18(15):449-457.

R. Kellogg. 1929. A new fossil toothed whale from Florida. American Museum Novitates 389:1-10.

R. Kellogg. 1931. Pelagic mammals of the Temblor Formation of the Kern River region, California. Proceedings of the California Academy of Science 19(12):217-397.

R. Kellogg. 1932. A Miocene long-beaked porpoise from California. Smithsonian Miscellaneous Collections 87(2):1-11.

R. Kellogg. 1934. A new cetothere from the Modelo Formation at Los Angeles, California. Carnegie Institution of Washington 447:83-104.

R. Kellogg. 1936. A Review of the Archaeoceti. Carnegie Institution of Washington 482:1-366.

R. Kellogg. 1944. Fossil Cetaceans from the Florida Tertiary. Bulletin of the Museum of Comparative Zoology at Harvard College XCIV(9):433-471.

R. Kellogg. 1955. Three Miocene porpoises from the Calvert Cliffs, Maryland. Proceedings of the United States National Museum 105(3354):101-154.

R. Kellogg. 1957. Two additional Miocene porpoises from the Calvert Cliffs Maryland. Proceedings of the United States National Museum 107(3387):279-337.

R. Kellogg. 1965. The Miocene Calvert sperm whale Orycterocetus. Bullten of the United States National Museum 247(2):47-63.

R. Kellogg. 1966. A new odontocete from the Calvert Miocene of Maryland. Proceedings of the United States National Museum 247(4):99-101.

R. Kellogg. 1966. New Species of Extinct Miocene Sirenia. United States National Museum Bulletin 247(3):65-98.

R. Kindlimann. 1990. Ein Nachweis von Acrodus nobilis Agassiz aus dem Sinemurien der Tongrube Gruhalde, Frick, Kt. Aargau (Nordschweiz). Eclogae Geologicae Helvetiae 83:829-843.

R. Kner. 1866. Die Fische der bituminösen Schiefer von Raibl in Kärnthen. Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften 53(1):152-197.

R. Knox. 1826. [Report of a seal from a bed of clay near Camelon]. Memoirs of the Wernerian Natural History Society, Edinburgh 5(2):572.

R. Kozlowski. 1914. Les brachiopodes du Carbonifère supérieur de Bolivie. Annales de Paléontologie 9:1-100.

R. L. Batten and W.L. Stokes. 1986. Early Triassic gastropods from the Sinbad Member of the Moenkopi Formation, San Rafael Swell, Utah. American Museum Novitates 2864:1-33.

R. L. Batten. 1958. Permian Gastropoda of the southwestern United States. 2. Pleurotomariacea: Portlockiellidae, Phymatopleuridae, and Eotomariidae. Bulletin of the American Museum of Natural History 114(2):153-246.

R. L. Batten. 1964. Some Permian Gastropoda from eastern Arizona. American Museum Novitates 2165:1-16.

R. L. Batten. 1966. The Lower Carboniferous gastropod fauna from the Hotwells Limestone of Compton Martin, Somerset. Part I. Palaeontographical Society Monographs 119(509):1-52.

R. L. Batten. 1966. The Lower Carboniferous gastropod fauna from the Hotwells Limestone of Compton Martin, Somerset. Part II. Palaeontographical Society Monographs 119(513):53-109.

R. L. Batten. 1972. Permian gastropods and chitons from Perak, Malaysia. Part I. Chitons, bellerophontids, euomphalids and pleurotomarians. Bulletin of the American Museum of Natural History 147:1-44.

R. L. Batten. 1979. Permian gastropods from Perak Malaysia. Part 2. The trochids, patellids, and neritids. American Museum Novitates (2685):1-26.

R. L. Batten. 1984. The Calcitic Wall in the Paleozoic Families Euomphalidae and Platyceratidae (Archeogastropoda). Journal of Paleontology 58(5):1186-1192.

R. L. Batten. 1985. Gastropods and chitons from Perak, Malaysia. Part 3: the murchisoniids, cerithiids, loxonematids, and subulitids. American Museum Novitates 2829:1-40.

R. L. Batten. 1989. Permian Gastropoda of the southwestern United States. 7. Pleurotomariacea: Eotomariidae, Lophospiriidae, Gosseletinidae. American Museum Novitates 2958:1-64.

R. L. Batten. 1995. Pennsylvanina (Morrowan) gastropods from the Magdalena Formation of the Hueco Mountains, Texas. American Museum Novitates 3122:1-46.

R. L. Brownwell Jr., P. J. Clapham, and T. Miyashita, T. Kasuya. 2001. Conservation status of North Pacific right whales. Journal of Cetacean Research and Management 2:269-286.

R. L. Christie. 1964. Geological Reconnaissance of northeastern Ellesmere Island, District of Franklin. Geological Survey of Canada Memoir 331:1-79.

R. L. Clifton. 1942. Invertebrate Faunas from The Blaine and The Dog Creek Formations of the Permain Leonard Series. Journal of Paleontology 16(6):685-699.

R. L. Cox. 1931. The geology of the Farsan Islands, Oizan and Kamaran Island, Red Sea. Part 2.- Molluscan palaeontology. Geological Magazine 68:1-18.

R. L. Ellison. 1965. Stratigraphy and Paleontology of the Mahantango Formation in south-central Pennsylvania. Pennsylvania Geological Survey Bulletin G48 .

R. L. Feng and Z. L. Jiang. 1978. Brachiopoda. Paleontological Atlas of Southwest China, Guizhou Volume 2:231-305.

R. L. Gertman. 1969. Cenozoic Typhinae (Mollusca: Gastropoda) of the Western Atlantic region. Tulane Studies in Geology and Paleontology 7(4):143-192.

R. L. Hall. 1991. Seirocrinus subangularis (Miller, 1821), a Pliensbachian (Lower Jurassic) crinoid from the Fernie Formation, Alberta, Canada. Journal of Paleontology 65(2):300-307.

R. L. Hay. 1990. Olduvai Gorge, a case study in the interpretation of hominid paleoenvironments in East Africa. Geological Society of America Special Publication 242:23-37.

R. L. Heller. 1954. Stratigraphy and paleontology of the Roubidoux Formation of Missouri. State of Missouri Department of Business and Administration, Division of Geological Survey and Water Resources .

R. L. Langenheim and R. C. Epis. 1957. Holothurian sclerites from the Mississippian Escabrosa limestone, Arizona. Micropaleontology 3(2):165-170.

R. L. Langenheim, Jr., B. G. Huff, and E. W. Lipman, R. C. Vaiden. 1985. Preliminary report of the brachiopod fauna, Arrow Canyon section, southern Nevada, U.S.A. Xth International Congress, Carboniferous Stratigraphy and Geology, Madrid, 1983, Compte ren.