Low durophagous predation on Toarcian (Early Jurassic) ammonoids in the northwestern Panthalassa shelf basin

• Autorzy: Takeda Y. , Tanabe K.
• Języki publikacji: EN

Abstrakty

EN

Predatory shell breakage is known to occur occasionally on the ventrolateral portion of the body chamber in Mesozoic ammonoids. Here we report, for the first time, quantitative data of shell breakage in large ammonoid samples that were recovered from the lower Toarcian (Lower Jurassic) strata in the Toyora area, western Japan. The strata yielding the ammonoid samples consisted mostly of well-laminated, bituminous black shale that was deposited in an oxygen-depleted shelf basin of the northwestern Panthalassa, under the influence of the early Toarcian oceanic anoxic event. Among a total of 1305 specimens from 18 localities, apparent shell breakage was recognised in 35 specimens belonging to 7 genera, resulting in only a 2.7% frequency of occurrence relative to the total number of specimens. The breakage occurs mostly on the ventrolateral side of the body chamber with a complete shell aperture. This fact, as well as the low energy bottom condition suggested for the ammonoid-bearing shale, indicate that the shell breaks observed in the examined ammonoids were not produced by non-biological, post-mortem biostratinomical processes but were lethal injuries inflicted by nek-tonic predators such as reptiles, jawed fishes, coleoids, nautiloids, and carnivorous ammonoids with calcified rostral tips in their upper and lower jaws. Similar predatory shell breaks on the ventrolateral side of the body chamber have been found in contemporaneous ammonoid assemblages of the Tethys Realm, with a much higher frequency of occurrence than in the examined samples from the northwestern Panthalassa, suggesting a weaker durophagous predation pressure on ammonoids in the latter bioprovince.

Słowa kluczowe

EN

Toarcian; Early Jurassic; Jurassic; ammonoid; Panthalassa zob.Panthalassic Ocean; Panthalassic Ocean; shelf basin; Ammonoidea; predation; ventral bite mark; paleontology

• Wydawca: -
• Czasopismo: Acta Palaeontologica Polonica
• Rocznik: 2015
• Tom: 60
• Numer: 4
• Opis fizyczny: p.781-794,fig.,ref.

Twórcy

autor

Takeda Y.

• Department of Earth and Planetary Science, The University of Tokyo, 7-3-1, Hongo, Tokyo 113-0033, Japan

autor

Tanabe K.

• Department of Earth and Planetary Science, The University of Tokyo, 7-3-1, Hongo, Tokyo 113-0033, Japan

Bibliografia

• Alexander, R.R. and Dietl, G.P. 2003. The fossil record of shell-breaking predation on marine bivalves and gastropods. In: P.H. Kelly, M. Kowalewski, and T.A. Hansen (eds.), Predator-Prey Interactions in the Fossil Record, 141-176. Plenum Press, New York.
• Andrew, C., Howe, P., Paul, C.R.C., and Donovan, S.K. 2010. Fatally bitten ammonites from the lower Lias Group (Lower Jurassic) of Lyme Regis, Dorset. Proceedings of the Yorkshire Geological Society 58: 81-94.
• Brown, B. 1904. Stomach stones and food of plesiosaurs. Science (New Series) 20: 184-185.
• Cicimurri, D.J. and Everhart, M.J. 2001. An elasmosaur with stomach contents and gastroliths from the Pierre Shale (Late Cretaceous) of Kansas. Transactions of the Kansas Academy of Science 104: 129-143.
• De Baets, K., Keupp, H., and Klug, C. 2015. Parasites of ammonoids. In: C. Klug, D. Korn, K. De Baets, I. Kruta, and R.H. Mapes (eds.), Ammonoid Paleobiology: from Anatomy to Ecology. Topics in Geobiology 43: 845-884.
• Dietl, G.P., Alexander, R.R., and Bien, W.F. 2000. Escalation in Late Cretaceous-early Paleocene oysters (Gryphaeidae) from the Atlantic Coastal Plain. Paleobiology 26: 215-237.
• Doguzhaeva, L. and Mutvei, H. 1991. Organization of the soft body in Aconeceras (Ammonitina), interpreted on the basis of shell morphology and muscle-scars. Palaeontographica Abteilung A 218: 17-33.
• Doguzhaeva, L. and Mutvei, H. 1996. Attachment of the body to the shell in ammonoids. In: N.H. Landman, K. Tanabe, and R.A. Davis (eds.), Ammonoid Paleobiology, 44-63. Plenum Press, New York.
• Fuchs, D. 2006. Morphology, taxonomy and diversity of vampyropod coleoids (Cephalopoda) from the Upper Cretaceous of Lebanon. Mem-orie della Societa Italiana di Scienze Naturali e del Museo Civico di StoriaNaturale diMilano 34: 1-28.
• Goto, M. 1994. Palaeozoic and early Mesozoic fish faunas of the Japanese Islands. The Island Arc 3: 247-254.
• Hamada, T. 1965. Post-mortem drift of Nautilus [in Japanese, with English abstract]. Venus 24: 181-198.
• Harper, E.M. 2003. The Mesozoic Marine Revolution. In: P.H. Kelly, M. Kowalewski, and T.A. Hansen (eds.), Predator-Prey Interactions in the Fossil Record, 433-455. Plenum Press, New York.
• Harper, E.M., Peck, L.S., and Hendry, K.R. 2009. Patterns of shell repair in articulate brachiopods indicate size constitutes a refuge from predation. Marine Biology 156: 1993-2000.
• Hasegawa, Y., Manabe, M., Hirano, H., and Takahashi, F. 1998. A turtle from the Early Jurassic Toyora Group, Yamaguchi, Japan. Memoirs of the National Science Museum 31: 67-72.
• Hauff, B. 1953. Das Holzmadenbuch. 54 pp. Hohenlohesche Buchhandlung, Öhringen.
• Haven, N. 1972. The ecology and behavior of Nautilus pompilius in the Philippines. The Veliger 15: 75-81.
• Hengsbach, R. 1996. Ammonoid pathology. In: N.H. Landman, K. Tanabe, and R.A. Davis (eds.), Ammonoid Paleobiology, 581-605. Plenum Press, New York.
• Hirano, H. 1971. Biostratigraphic study of the Jurassic Toyora Group. Part 1. Memoirs of the Faculty of Science, Kyushu University, Series D 21: 93-128.
• Hirano, H. 1973a. Biostratigraphic study of the Jurassic Toyora Group. Part 2. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 89: 1-14.
• Hirano, H. 1973b. Biostratigraphic study of the Jurassic Toyora Group. Part 3. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 90: 45-71.
• Hoffmann, R. and Keupp, H. 2015. Ammonoid paleopathology. In: C. Klug, D. Korn, K. De Baets, I. Kruta, and R.H. Mapes (eds.), Ammonoid Paleobiology: from Anatomy to Ecology. Topics in Geobiology 43: 885-934.
• Hoffmeister, A.P. and Kowalewski, M. 2001. Spatial and environmental variation in the fossil record of drilling predation: A case study from the Miocene of central Europe. Palaios 16: 566-579.
• Hone, D.W.E. and Benton, M.J. 2005. The evolution of large size: how does Cope's Rule work? Trends in Ecology and Evolution 20: 4-6.
• Howarth, M.K. 1975. The shell structure of the Liassic ammonite family Dactylioceratidae. Bulletin of the British Museum (Natural History), Geology 26: 45-67.
• Ifrim, C. 2013. Paleobiology and paleoecology of the early Turonian (Late Cretaceous) ammonite Pseudaspidoceras flexuosum. Palaios 28: 9-22.
• Izumi, K., Miyaji, T., and Tanabe, K. 2012. Early Toarcian (Early Jurassic) oceanic anoxic event recorded in the shelf deposits in the northwestern Panthalassa: Evidence from the Nishinakayama Formation in the Toyora area, west Japan. Palaeogeography, Palaeoclimatology, Palaeoecology 315-316: 100-108.
• Jacobs, D.K. and Chamberlain, J.A. 1996. Buoyancy and hydrodynamics in ammonoids. In: N.H. Landman, K. Tanabe, and R.A. Davis (eds.), Ammonoid Paleobiology, 169-223. Plenum Press, New York.
• Jäger, M. and Fraaye, R. 1997. The diet of the early Toarcian ammonite Harpoceras falciferum. Palaeontology 40: 557-574.
• Jones, D.L. 1961. Muscle attachment impressions in a Cretaceous ammonite. Journal of Paleontology 35: 502-504.
• Jordan, R. 1968. Zur Anatomie mesozoischer Ammoniten nach den Strukturelementen der Gehäuse-Innenwand. Beihefte zum Geologischen Jahrbuch 77: 1-64.
• Kase, T., Johnson, P.A., Seilacher, A., and Boyce, J.B. 1998. Alleged mo-sasaur bite marks on late Cretaceous ammonite are limpet (patellogas-tropod) home scars. Geology 26: 947-950.
• Kase, T., Shigeta, Y., and Futakami, M. 1994. Limpet home depressions in Cretaceous ammonites. Lethaia 27: 49-58
• Kase, T., Shigeta, Y., and Futakami, M. 1995. Limpet pits on ammonoids living in surface waters: reply. Lethaia 28: 315-316.
• Kauffman, E.G. 1990. Mosasaur predation on ammonites during the Cretaceous—an evolutionary history. In: A.J. Boucot (ed.), Evolutionary Paleobiology of Behavior and Coevolution, 184-189. Elsevier, Amsterdam.
• Kauffman, E.G. and Kesling, R.V. 1960. An Upper Cretaceous ammonite bitten by a mosasaur. University of Michigan, Museum of Paleontology Contributions 15: 193-248.
• Kelley, P.H., Hansen, T.A., Graham, S.E., and Huntoon, A.G. 2001. Temporal patterns in the efficiency of naticid gastropod predators during the Cretaceous and Cenozoic of the United States Coastal Plain. Palaeogeography, Palaeoclimatology, Palaeoecology 166: 165-176.
• Kemp, D.B. and Izumi, K. 2014. Multiproxy geochemical analysis of a Panthalassic margin record of the early Toarcian oceanic anoxic event (Toyora area, Japan). Palaeogeography, Palaeoclimatology, Palaeo-ecology 414: 332-341.
• Keupp, H. 2000. Ammoniten. 165 pp. Jan Thorbecke Verlag, Stuttgart.
• Keupp, H. 2006. Sublethal punctures in body chambers of Mesozoic ammonites (forma aegra fenestra n.f.), a tool to interpret synecological relationships, particularly predator-prey interactions. Paläontologische Zeitschrift 80: 112-123.
• Keupp, H. 2012. Atlas zur Paläopathologie der Cephalopoden. Berliner Paläobiologische Abhandlungen 12: 1-392.
• Klompmaker, A.A., Waljaard, N.A., and Fraaije, R.H.B. 2009. Ventral bite marks in Mesozoic ammonoids. Palaeogeography, Palaeoclimatology, Palaeoecology 280: 245-257.
• Klug, C. 2007. Sublethal injuries in Early Devonian cephalopod shells from Morocco. ActaPalaeontologicaPolonica 52: 749-759.
• Klug, C. and Korn, D. 2004. The origin of ammonoid locomotion. Acta Palaeontologica Polonica 49: 235-242.
• Klug, C., Schweigert, G., Fuchs, D., and Dietl, G. 2010. First record of a belemnite preserved with beaks, arms and ink sca from the Nusplingen Lithographic Limestone (Kimmeridgian, SW Germany). Lethaia 43: 445-456.
• Konishi, T., Newbrey, M.G., and Caldwell, M.W. 2014. A small, exquisitely preserved specimen of Mosasaurus missouriensis (Squamata, Mosasauridae) from the upper Campanian of the Bearpaw Formation, western Canada, and the first stomach contents for the genus. Journal of Vertebrate Paleontology 34: 802-819.
• Kowalewski, M. 2002. The fossil record of predation: an overview of analytical methods. Paleontological Society Papers 8: 3-42.
• Kröger, B. 2000. Schalenverletzungen an jurassischen Ammoniten - ihre paläobiologische und paläoökologische Aussagefähigkeit. Berliner Geowissenschaftliche Abhandlungen E33: 1-96.
• Kröger, B. 2002. Antipredatory traits of the ammonoid shell—indications from Jurassic ammonoids with sublethal injuries. Paläontologische Zeitschrift 76: 223-234.
• Kröger, B. 2011. Size matters—Analysis of shell repair scars in endocerid cephalopods. Fossil Record 14: 109-118.
• Kröger, B., Vinther, J., and Fuchs, D. 2012. Cephalopod origin and evolution: A congruent picture emerging from fossils, development and molecules. Bioessays 33: 602-613.
• Landman, N.H., Lane, J., Cobban, W., Jorgensen, S.D., Kennedy, W.J., and Larson, N.L. 1999. Impressions of the attachment of the soft body to the shell in Late Cretaceous pachydiscid ammonites from the Western Interior of the United States. American Museum Novitates 3273: 1-31.
• Landman, N.H. and Waage, K.M. 1986. Shell abnormalities in scaphitid ammonites. Lethaia 19: 211-224.
• Lehmann, U. 1976. Ammoniten: ihre Leben und ihre Umwelt. 171 pp. Enke, Stuttgart.
• Lehmann, U. and Weitschat, W. 1973. Zur Anatomie und Ökologie von Am-moniten: Funde von Kropf und Kiemen. Paläontologische Zeitschrift 47: 69-76.
• Lehmann, U., Tanabe, K., Kanie, Y., and Fukuda, Y. 1980 Über den Kieferapparat der Lytoceratacea (Ammonoidea). Paläontologische Zeitschrift 54: 319-329.
• Maeda, H. and Seilacher, A. 1996. Ammonoid taphonomy. In: N.H. Landman, K. Tanabe, and R.A. Davis (eds.), Ammonoid Paleobiology, 543-578. Plenum Press, New York.
• Manabe, M. and Hasegawa, Y. 1998. A crocodile from the Early Jurassic Toyora Group, Yamaguchi, Japan. Memoirs of the National Science Museum National Science Museum 31: 73-77.
• Mapes, R.H. and Chaffin, D.T. 2003. Predation on cephalopods: A general overview with a case study from the Upper Carboniferous of Texas. In: P.H. Kelly, M. Kowalewski, and T.A. Hansen (eds.), Predator-Prey Interactions in the Fossil Record, 177-213. Plenum Press, New York.
• Mapes, R.H. and Hansen, M.C. 1984, Pennsylvanian shark-cephalopod predation: a case study. Lethaia 17: 175-182.
• Mapes, R.H., Hembree, D.I., Rasor, B.A., Stigall, A., Goirand, C., and De Forges, B.R. 2010a. Modern Nautilus (Cephalopoda) taphonomy in a subtidal to backshore environment, Lifou (Loyalty Islands). Palaios 25: 656-670.
• Mapes, R.H., Landman, N.H., Cochran, K., Goiran, C., De Forges, B.R., and Renfro, A. 2010b. Early taphonomy and significance of naturally submerged Nautilus shells from the New Caledonia region. Palaios 25: 597-610.
• Mapes, R.H., Sims, M.S., and Boardman, D.R. II 1995. Predation on the Pennsylvanian ammonoid Gonioloboceras and its implications for al-lochthonous vs. autochthonous accumulations of goniatites and other ammonoids. Journal of Paleontology 69: 441-446.
• Martill, D.M. 1990. Predation on Kosmoceras by semionotid fish in the Middle Jurassic Lower Oxford Clay in England. Palaeontology 33: 739-742.
• Martill, D.M. 1992. Pliosaur stomach contents from the Oxford Clay. Mercian Geologist 13: 37-42.
• Mehl, J. 1978. Ein Koprolith mit Ammoniten-Aptychen aus dem Solnhofer Plattenkalk. Jahresberichte der Wetterauischen Gesellschaft für die gesamte Naturkunde 129/130: 75-93.
• Nakada, K. and Matsuoka, A. 2011. International correlation of the Pliens-bachian/Toarcian (Lower Jurassic) ammonoid biostratigraphy of the Nishinakayama Formation in the Toyora Group, southwest Japan. Newsletters on Stratigraphy 44: 89-111.
• Odunze, S. and Mapes, R.H. 2013. Nearly circular, oval and irregular holes in Cretaceous ammonoids from Nigeria. Lethaia 46: 409-415.
• Okamoto, T. 1996. Theoretical modeling of ammonoid morphology. In: N.H. Landman, K. Tanabe, and R.A. Davis (eds.), Ammonoid Paleobiology, 225-251. Plenum Press, New York.
• Page, K.N. 1996. Mesozoic ammonoids in space and time. In: N.H. Landman, K. Tanabe, and R.A. Davis (eds.), Ammonoid Paleobiology, 755-794. Plenum Press, New York.
• Page, K.N. 2008. The evolution and geography of Jurassic ammonoids. Proceedings of the Geologists' Association 119: 35-57.
• Parent, H., Westermann, G.E.G., and Chamberlain, J.A., Jr. 2014. Ammonite aptychi: Functions and role in propulsion. Geobios 47: 45-55.
• Pollard, J.E. 1968. The gastric contents of an ichthyosaur from the Lower Lias of Lyme Regis, Dorset. Palaeontology 11: 376-388.
• Richter, A.E. 2009. Ammoniten-Gehäuse mit Bissspuren. Berliner paläo-biologische Abhandlungen 10: 297-305.
• Richter, G. and Baszio, S. 2001. Traces of a limnic food web in the Eocene Lake Messel; a preliminary report based on fish coprolite analyses. Palaeogeography, Palaeoclimatology, Palaeoecology 166: 345-368.
• Riegraf, W., Werner, G., and Lörcher, F. 1984. DerPosidonienschiefer. Bio-stratigraphie, Fauna und Fazies des südwestdeutschen Untertoarciums (Lias epsilon). 195 pp. Enke, Stuttgart.
• Ritterbush, K.A., Hoffmann, R., Lukeneder, A., and De Baets, K. 2014. Pelagic palaeoecology: the importance of recent constraints on ammonoid palaeobiology and life history. Journal of Zoology 292: 229-241.
• Sato, T. and Tanabe, K. 1998. Cretaceous plesiosaurs ate ammonites. Nature 394: 629-630.
• Saunders, W.B. and Shapiro, E.A. 1986. Calculation and simulation of ammonoid hydrostatics. Paleobiology 12: 64-79.
• Saunders, W.B., Spinosa, C., and Davis, L.E. 1987. Predation on Nautilus. In: W.B. Saunders and N.H. Landman (eds.), Nautilus: The Biology and Paleobiology of a Living Fossil, 201-212. Plenum Press, New York.
• Schaeffer, B. and Patterson, C. 1984. Jurassic fishes from the western United States, with comments on Jurassic fish distribution. American Museum Novitates 2796: 1-86.
• Schweigert, G. 1997. Erstaunliches Regenerationsvermögen bei Ammo-niten. Fossilien 1: 36-40.
• Schweigert, G. and Dietl, A. 1999. Zur Erhaltung und Einbettung von Ammoniten im Nusplinger Plattenkalk (Oberjura, Südwestdeutschland). Stuttgarter Beiträge zur Naturkunde Serie B (Geologie und Paläontologie) 272: 1-31.
• Schweizer, C.E. and Feldmann, R.M. 2010. The Decapoda (Crustacea) as predators on Mollusca through geologic time. Palaios 25: 167-182.
• Scotese, C.R. 2001. Atlas ofEarthHistory, Vol. 1, Paleogeography. PALEO-MAP Project, Arlington, Texas.
• Slotta, F., Korn, D., Klug, C., Kröger, B., and Keupp, H. 2011. Sublethal shell injuries in Late Devonian ammonoids (Cephalopoda) from Katten-siepen (Rhenish Mountains). Neues Jahrbuch für Geologie und Pälaon-tologie Abhandlungen 261: 321-336.
• Tanabe, K. 1988. Record of trapping experiment. Kagoshima University Research Center for the South Pacific, Occasional Papers 15: 5-15.
• Tanabe, K. 1991. Early Jurassic macrofauna of the oxygen-depleted epi-continental marine basin in the Toyora area, west Japan. Saito Ho-on Kai Special Publication 3: 147-161.
• Tanabe, K. 2012. Comparative morphology of modern and fossil coleoid jaw apparatuses. Neues Jahrbuch für Geologie und Pälaontologie Abhandlungen 266: 9-18.
• Tanabe, K. and Fukuda, Y. 1999. Morphology and function of cephalopod buccal mass. In: E. Savazzi (ed.), Functional Morphology of the Invertebrate Skeleton, 245-262. John Wiley & Sons, London.
• Tanabe, K., Fukuda, Y., Kanie, Y., and Lehmann, U. 1980. Rhyncholites and conchorhynchs as calcified jaw elements in some late Cretaceous ammonites. Lethaia 13: 157-168.
• Tanabe, K., Hikida, Y., and Iba, Y. 2006. Two coleoid jaws from the Upper Cretaceous of Hokkaido, Japan. Journal of Paleontology 80: 138-145.
• Tanabe, K., Inazumi, A., Ohtsuka, Y., Katsuta, T., and Tamahama, K. 1982. Litho- and biofacies and chemical composition of the Lower Jurassic Nishinakayama Formation (Toyora Group) in west Japan [in Japanese, with English abstract]. Memoirs of Ehime University, Series D (Earth Science) 9: 47-62.
• Tanabe, K., Inazumi, A., Tamahama, K., and Katsuta, T. 1984. Taphonomy of half and compressed ammonites from the lower Jurassic black shales of the Toyora area, west Japan. Palaeogeography, Palaeoclimatology, Palaeoecology 47: 329-346.
• Tanabe, K., Kruta, I., and Landman, N.H. 2015. Ammonoid buccal mass and jaw apparatus. In: C. Klug, D. Korn, K. De Baets, I. Kruta, and R.H. Mapes (eds.), Ammonoid Paleobiology: from Anatomy to Ecology. Topics in Geobiology 43: 437-492.
• Tanabe, K., Kulicki, C., and Landman, N.H. 2008a. Development of the embryonic shell structure of Mesozoic ammonoids. American Museum Novitates 3621: 1-19.
• Tanabe, K., Misaki, A., Landman, N.H., and Kato, T. 2013. The jaw apparatuses of Cretaceous Phylloceratina (Ammonoidea). Lethaia 46: 399-408.
• Tanabe, K., Shinomiya, A., and Fukuda, Y. 1988. Notes on shell breakage in Nautiluspompilius from Fiji. Kagoshima University Research Center for South Pacific, Occasional Papers 15: 52-55.
• Tanabe, K., Trask, P., Ross, R., and Hikida, Y. 2008b. Late Cretaceous octo-brachiate coleoid lower jaws from the north Pacific regions. Journal of Paleontology 82: 398-408.
• Tarlo, L.B. 1959. Pliosaurus brachyspondylus Owen from the Kimmeridge Clay. Palaeontology 1: 283-291.
• Taverne, N. 2000. Ammonieten als prooidier. Gea 35: 9-15.
• Taylor, M.A. 1993. Stomach stones for feeding or buoyancy? The occurrence and function of gastroliths in marine tetrapods. Philosophical Transactions of the Royal Society ofLondon B 341: 163-175.
• Trueman, A.E. 1941. The ammonite body-chamber, with special reference to the buoyancy and mode of life of the living ammonite. Quaternary Journal of Geological Society of London 96: 339-383.
• Tsujita, C.J. and Westermann, G.E.G. 2001. Were limpets or mosasaurs responsible for the perforations in the ammonite Placenticeras? Palaeo-geography, Palaeoclimatology, Palaeoecology 169: 245-270.
• Vermeij, G.J. 1977. The Mesozoic marine revolution: evidence from snails, predators and grazers. Paleobiology 3: 245-258.
• Vermeij, G.J. 1982. Unsuccessful predation and evolution. The American Naturalist 120: 701-720.
• Vermeij, G.J. 1987. Evolution and Escalation: An Ecological History ofLife. 544 pp. Princeton University Press, Princeton.
• Vullo, R. 2011. Direct evidence of hybodont shark predation on Late Jurassic ammonites. Naturwissenschaften 98: 845-549.
• Walker, S.E. and Brett, C.E. 2002. Post-Paleozoic patterns in marine preda-tion: was there a Mesozoic and Cenozoic marine predatory revolution? Paleontological Society Papers 8: 119-194.
• Wani, R. 2001. Reworked ammonoids and their taphonomic implications in the upper Cretaceous of northwestern Hokkaido, Japan. Cretaceous Research 22: 615-625.
• Wani, R. 2004. Experimental fragmentation patterns of modern Nautilus shells and the implications for fossil cephalopod taphonomy. Lethaia 37: 113-123.
• Ward, D.J. and Hollingworth, N.T.J. 1990. The first record of a bitten ammonite from the Middle Oxford Clay (Callovian, Middle Jurassic) of Bletchley, Buckinghamshire. Mesozoic Research 2: 153-161.
• Westermann, G.E.G. 1996. Ammonoid life and habitat. In: N.H. Landman, K. Tanabe, and R.A. Davis (eds.), Ammonoid Paleobiology, 607-707. Plenum Press, New York.
• Westermann, G.E.G. 2000. Marine faunal realms of the Mesozoic: review and revision under the new guidelines for biogeographic classification and nomenclature. Palaeogeography, Palaeoclimatology, Palaeoeco-logy 163: 49-68.
• Wright, J.K., Bassett-Butt, L., and Wright, M.C. 2014. Fatally bitten ammonites from the Lower Calcareous Grit Formation (Upper Jurassic) of NE Yorkshire, UK. Proceedings of the Yorkshire Geological Society 60: 1-8.
• Yabumoto, Y. and Uyeno, T. 1992. Late Mesozoic and Cenozoic fish faunas of Japan. Abstracts of the 29th International Geological Congress 2: 350.
• Zatoń, M. 2010. Sublethal injuries in Middle Jurassic ammonite shells from Poland. Geobios 43: 365-375.