Abstract
Rapid diversification of clades within a restricted geographic area is fairly common, and has been well studied as a model of adaptive radiation. The monophyletic clades produced by this type of event have been called “species flocks.” An investigation of the Cenomanian radiation of acanthoceratid ammonites in the North American Western Interior Seaway reveals that this clade shows all the characteristics of a species flock: the acanthoceratid genera are speciose and diversified rapidly, and many of the species are geographically restricted within the Western Interior, possibly due to environmental barriers. A cladistic analysis shows many true polytomies, a high autapomorphy to synapomor- phy ratio, and much parallelism, all reflecting rapid diversification from a single ancestral lineage. These ammonites also show pronounced plasticity of developmental timing. Most differences in morphology among taxa are due to small changes in developmental timing, and an unusually high number of progenic dwarf spinoff taxa occur in this clade, indicating that larger-scale changes in ontogenetic timing are also common. It seems, then, that the developmental program of this ammonite clade was exceedingly labile during its radiation. This plasticity may have allowed the clade to radiate so rapidly and profusely. As developmental plasticity may be a characteristic of ammonoids as a whole, this internal factor, rather than sensitivity to external environmental conditions, may be the root cause of high speciation rates in ammonoids.
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References
Bayer, U., and McGhee, G. R., Jr., 1985, Evolution in marginal epicontinental basins: The role of phylogenetic and ecological factors, in: Sedimentary and Evolutionary Cycles (U. Bayer and A. Seilacher, eds.), Lecture Notes in Earth Sciences Vol. 1, Springer-Verlag, Berlin, pp. 164–220.
Becker, R. T., 1993, Anoxia, eustatic changes, and Upper Devonian to lowermost Carboniferous global ammonoid diversity, in: The Ammonoidea: Environment, Ecology, and Evolutionary Change (M. R. House, ed.), The Systematics Association Special Volume No. 47. Clarendon Press, Oxford, pp. 115–163.
Callomon, J. H., 1985, The evolution of the Jurassic ammonite family Cardioceratidae, Special Papers in Palaeontology 33:49–90.
Cobban, W. A., 1987, Some Middle Cenomanian (Upper Cretaceous) acanthoceratid ammonites from the Western Interior of the United States, USGS Professional Paper 1445.
Cobban, W. A., and Kennedy, W. J., 1991, Evolution and biogeography of the Cenomanian (Upper Cretaceous) ammonite Metoicoceras Hyatt, 1903, with a revision of Metoicoceras praecox Haas, 1949, USGS Bulletin 1934.
Geyssant, J. R., 1988, Diversity in mode and tempo of evolution within one Tithonian ammonite family, the Simo-ceratids, in: Cephalopods-Present and Past (J. Wiedmann and J. Kullmann, eds.), Schweizerbart’sche Verlagsbuchhandlung, Stuttgart, pp. 79–88.
Glenister, B. F., and Furnish, W. M., 1988, Terminal Progenesis in Late Paleozoic Ammonoid Families, in: Cephalopods—Present and Past (J. Wiedmann and J. Kullmann, eds.), Schweizerbart’sche Verlagsbuchhandlung, Stuttgart, pp. 51–66.
Gould, S. J., 1977, Ontogeny and Phytogeny, Harvard University Press, Cambridge.
Greenwood, P. H., 1981, Species-flocks and explosive evolution, in: Chance, Change and Challenge — The evolving biosphere (P. H. Greenwood and P. L. Forey, eds.), Cambridge University Press and British Museum (Natural History), London, pp. 61–74.
Greenwood, P. H., 1984, African cichlids and evolutionary theories, in: Evolution of fish species flocks (A. Echelle and I. Kornfield, eds.), University of Maine Press, Orono, Maine, pp. 141–154.
Hallam, A., 1989, The case for sea-level change as a dominant causal factor in mass extinction of marine invertebrates, Philosophical Transactions of the Royal Society of London B 325:437–455.
Hallam, A., 1990, Biotic and abiotic factors in the evolution of early Mesozoic marine molluscs, in: Causes of Evolution: A Paleontological Perspective (R. M. Ross and W. D. Allmon, eds.), University of Chicago Press, Chicago, pp. 249–268.
House, M. R., 1985, Correlation of mid-Palaeozoic ammonoid evolutionary events with global sedimentary perturbations, Nature 313:17–22.
House, M. R., 1989, Ammonoid extinction events, Philosophical Transactions of the Royal Society of London B325:307–326.
House, M. R., 1993, Fluctuations in ammonoid evolution and possible environmental controls, in: The Am-monoidea: Environment, Ecology, and Evolutionary Change (M. R. House, ed.), The Systematics Association Special Volume No. 47, Clarendon Press, Oxford, pp. 13–34.
Kauffman, E. G., and Caldwell, W. G. E., 1993, The Western Interior Basin in Space and Time, in: Evolution of the Western Interior Basin (W. G. E. Caldwell and E. G. Kauffman, eds.), Geological Association of Canada Special Paper 39, pp. 1–30.
Kennedy, W. J., 1988, Late Cenomanian and Turonian ammonite faunas from north-east and central Texas, Special Papers in Palaeontology 39: 1–131.
Kennedy, W. J., and Cobban, W. A., 1990a, Cenomanian ammonite faunas from the Woodbine Formation and lower part of the Eagle Ford Group, Texas, Palaeontology 33(1):75–154.
Kennedy, W. J., and Cobban, W. A., 1990b, Cenomanian micromorph ammonites from the Western Interior of the USA, Palaeontology 33(2): 379–422.
Kennedy, W. J., and Wright, C. W., 1985, Evolutionary patterns in Late Cretaceous ammonites, Special Papers in Palaeontology 33:131–143.
Kennedy, W. J., and Wright, C. W., 1987, The Ammonoidea of the Lower Chalk, Part 2, Monograph of the Pa-laeontological Society, Publication No. 573
Korn, D., 1995, Paedomorphosis of ammonoids as a result of sealevel fluctuations in the Late Devonian Wock-lumeria Stufe, Lethaia 28: 155–165.
Kowallis, B. J., Christiansen, E. H., Deino, A. L., Kunk, M. J., and Heaman, L. M., 1995, Age of the Cenomanian-Turonian boundary in the Western Interior of the United States, Cretaceous Research 16(1): 109–129.
Landman, N. H., 1987, Ontogeny of Upper Cretaceous (Turonian-Santonian) scaphitid ammonites from the Western Interior of North America: Systematics, developmental patterns and life history, Bulletin of the American Museum of Natural History 185(2): 117–241.
Landman, N. H., 1988, Heterochrony in ammonites, in: Heierochrony in Evolution (M. L. McKinney, ed.), Plenum Press, New York, pp. 159–182.
Landman, N. H., 1989, Iterative progenesis in Upper Cretaceous ammonites, Paleobiology 15(2): 95–117.
Landman, N. H., and Geyssant, J. R., 1993, Heterochrony and ecology in Jurassic and Cretaceous ammonites, in: Sème Symposium international sur les Céphalopodes actuels et fossiles (S. Elmi, C. Mangold, and Y. Aimeras, eds.), Geobios, Mémoire Special 15, pp. 247–255.
Landman, N. H., Dommergues, J.-L., and Marchand, D., 1991, The complex nature of progenetic species-examples from Mesozoic ammonites, Lethaia 24: 409–421.
Marchand, D., and Dommergues, J.-L., 1988, Rythmes évolutifs et hétérochronies du développement: Exemples pris parmi les Ammonites Jurassiques, in: Cephalopods — Present and Past (J. Wiedmann and J. Kullmann, eds.), Schweizerbart’sche Verlagsbuchhandlung, Stuttgart, pp. 67–78.
McCune, A. R., 1982, Early Jurassic Semionotidae (Pisces) from the Newark Supergroup: systematics and evolution of a fossil species flock, Ph.D. dissertation, Yale University, New Haven, Connecticut, USA.
McCune, A. R., 1987a, Toward a phylogeny of a fossil species flock: semionotid fishes from a lake deposit in the Early Jurassic Towaco Formation, Newark Basin, Yale Peabody Museum of Natural History Bulletin 43: 1–108.
McCune, A. R., 1987b, Lakes as laboratories of evolution: endemic fishes and environmental cyclicity, Palaios 2:446–454.
McCune, A. R., 1990, Evolutionary novelty and atavism in the Semionotus Complex: relaxed selection during colonization of an expanding lake, Evolution 44: 71–85.
McCune, A. R., 1996, Biogeographic and stratigraphic evidence for rapid speciation in semionotid fishes, Paleobiology 22: 34–48.
McCune, A. R., Thomson, K. S., and Olsen, P. E., 1984, Semionotid fishes from the Mesozoic great lakes of North America, in: Evolution offish species flocks (A. Echelle and I. Kornfield, eds.), University of Maine Press, Orono, Maine, pp. 27–44.
McKinney, M. L., and McNamara, K. J., 1991, Heterochrony: The evolution of ontogeny, Plenum Press, New York.
Meyer, A., 1993, Phylogenetic relationships and evolutionary processes in East African cichlid fishes, Trends in Ecology and Evolution 8(8): 279–284.
Nations, J. D., and Eaton, J. G. (eds.), 1991, Stratigraphy, depositional environments, and sedimentary tectonics of the western margin, Cretaceous Western Interior Seaway, Geological Society of America Special Paper 260
Obradovich, J. D., 1993, A Cretaceous Time Scale, in: Evolution of the Western Interior Basin (W. G. E. Caldwell and E. G. Kauffman, edsj, Geological Association of Canada Special Paper 39, pp. 379–396.
Rawson, P. F., 1993, The influence of sea-level changes on the migration and evolution of early Cretaceous (pre-Aptian) ammonites, in: The Ammonoidea: Environment, Ecology, and Evolutionary Change (M. R. House, ed.), The Systematics Association Special Volume No. 47, Clarendon Press, Oxford, pp. 227–242.
Smith, A. B., 1994, Systematics and the fossil record: documenting evolutionary patterns, Blackwell Scientific Publications, Oxford.
Smith, A. G., Smith, D. G., and Funneil, B. F., 1994, Atlas of Mesozoic and Cenozoic coastlines, Cambridge University Press, Cambridge.
Swan, A. R. H., 1988, Heterochronic trends in Namurian ammonoid evolution, Palaeontology 31: 1033–1051.
Swofford, D. L., 1989, PAUP: Phylogenetic Analysis Using Parsimony, Version 3.0. Computer program distributed by the Illinois Natural History Survey, Champaign, Illinois, USA. [Currently available from Sinauer Associates, Inc., Sunderland, Massachusetts.]
TAnabe, K., 1993, Variability and mode of evolution of the Middle Cretaceous ammonite Subprionocyclus (Ammonitina: Collignoniceratidae) from Japan, in: 3ème Symposium international sur les Céphalopodes actuels et fossiles (S. Elmi, C. Mangold, and Y. Aiméras, eds.), Geobios M.S. 15, pp. 347–357.
Thomson, K. S., 1988, Morphogenesis and Evolution, Oxford University Press, Oxford.
Wagner, P. J., and Erwin, D. H., 1995, Phylogenetic patterns as tests of speciation models, in: New Approaches to Speciation in the Fossil Record (D. H. Erwin and R. L Anstey, eds.), Columbia University Press, New York, pp. 87–122.
Webb, G. E., 1994, Parallelism, non-biotic data and phytogeny reconstruction, Lethaia 27: 185–192.
Westermann, G. E. G., 1993, Global bio-events in mid-Jurassic ammonites controlled by seaways, in: The Ammonoidea: Environment, Ecology, and Evolutionary Change (M. R. House, ed.), The Systematics Association Special Volume No. 47, Clarendon Press, Oxford, pp. 187–226.
Wiedmann, J., 1988, Plate tectonics, sea level changes, climate—and the relationship to ammonite evolution, provincialism and mode of life, in: Cephalopods—Present and Past (J. Wiedmann and J. Kullmann, eds.), Schweizerbart’sehe Verlagsbuchhandlung, Stuttgart, pp. 737–765.
Williams, G. D., and Stelck, C. R., 1975, Speculations on the Cretaceous palaeogeography of North America, in: The Cretaceous System in the Western Interior of North America (W. G. E. Caldwell, ed.), Geological Association of Canada Special Paper No. 13, pp. 1–20.
Cobban, W. A., 1953, Cenomanian ammonite fauna from the Mosby Sandstone of Central Montana, USGS Professional Paper 243-D, [Dunveganoceras]
Cobban, W. A., 1983, Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior, in: Stratigraphy and paleontology of mid-Cretaceous rocks in Minnesota and contiguous areas (W. A. Cobban and E. A. Merewether, eds.), USGS Professional Paper 1253, pp. A1–A23. [Metoicoceras]
Cobban, W. A., 1987, Some Middle Cenomanian (Upper Cretaceous) acanthoceratid ammonites from the Western Interior of the United States, USGS Professional Paper 1445, [Acanthoceras, Cunningtoniceras, Plesia-canthoceras, Plesiacanthoceratoides]
Cobban, W. A., 1988a, Some acanthoceratid ammonites from Upper Cenomanian (Upper Cretaceous) rocks of Wyoming, USGS Professional Paper 1353, [Dunveganoceras, Metoicoceras]
Cobban, W. A., 1988b, Tarrantoceras Stephenson and related ammonoid genera from Cenomanian (Upper Cretaceous) rocks in Texas and the Western Interior of the United States, USGS Professional Paper 1473, [Neo-cardioceras, Tarrantoceras]
Cobban, W. A., 1990, Ammonites and some characteristics bivalves from the Upper Cretaceous Frontier Formation, Natrona County, Wyoming, USGS Bulletin 1917-B. [Conlinoceras, Cunningtoniceras]
Cobban, W. A., and Hook, S. C., 1983, Mid-Cretaceous (Turonian) ammonite fauna from Fence Lake area of west-central New Mexico, New Mexico Bureau of Mines and Mineral Resources Memoir 41. [Acanthoceras]
Cobban, W. A., and Kennedy, W. J., 1991, Evolution and biogeography of the Cenomanian (Upper Cretaceous) ammonite Metoicoceras Hyatt, 1903, with a revision of Metoicoceras praecox Haas, 1949. USGS Bulletin 1934-B, [Metoicoceras]
Cobban, W. A., and Scott, G. R., 1972, Stratigraphy and ammonite fauna of the Graneros Shale and Greenhorn Limestone near Pueblo, Colorado. USGS Professional Paper 645, [Acanthoceras, Calycoceras, Conlinoceras, Tarrantoceras]
Collignon, M., 1937, Ammonites Cénomaniennes du sud-ouest de Madagascar. Annales Géologiques du Service des Mines de Madagascar 8: 29–72. [Acanthoceras, Cunningtoniceras]
Emerson, B. L., Emerson, J. H., Akers, R. E., and Akers, T. J., 1994, Texas Cretaceous Ammonites and Nautiloids, Houston Gem and Mineral Society, Paleontology Section, Texas Paleontology Series, Publication No. 5. [Graysonites]
Haas, O., 1942, Some Upper Cretaceous ammonites from Angola. American Museum Novitates no. 1182, [Shar-peiceras]
Haas, O., 1949, Acanthoceratid Ammonoidea from near Greybull, Wyoming, American Museum of Natural History Bulletin 93(1). [Dunveganoceras]
Haas, O., 1951, Supplementary notes on the ammonoid genus Dunveganoceras, American Museum Novitates No. 1490, [Dunveganoceras]
Haas, O., 1963, Par acanthoceras wyomingense (Reagan) from the western interior of the United States and from Alberta (Ammonoidea), American Museum Novitates 2151, [Plesiacanthoceras]
Haas, O., 1964, Plesiacanthoceras, new name for Paracanthoceras Haas 1963, non Furon, 1935, Journal of Paleontology 38(3):610. [Plesiacanthoceras]
Hyatt, A., 1903, Pseudoceratites of the Cretaceous, USGS Monograph 44, [Acompsoceras, Calycoceras, Metoicoceras]
Juignet, P., and Kennedy, W. J., 1976, Faunes d’ammonites et biostratigraphie comparée du Cénomanien du nord-oest de la France (Normandie) et du sud de l’Angleterre, Société Géologique de Normandie et Amis du Muséum du Havre 63(2). [Plesiacanthoceras]
Kennedy, W. J., 1971, Cenomanian ammonites from southern England, Palaeontological Association of London, Special Papers in Palaeontology 8. [Acanthoceras, Calycoceras, Plesiacanthoceras]
Kennedy, W. J., and Cobban, W. A., 1990, Cenomanian ammonite faunas from the Woodbine Formation and the lower part of the Eagle Ford Group, Texas, Palaeontology 33(1):75–154. [Acanthoceras, Conlinoceras, Cunningtoniceras, Plesiacanthoceras, Plesiacanthoceratoides, Tarrantoceras]
Kennedy, W. J., and Delamette, M., 1994, Neophlycticeras SPATH, 1922 (Ammonoidea) from the Upper Albian of Ain, France, N. Jb. Geol Paläont. Abh, 191(1): 1–24. [Neophlycticeras]
Kennedy, W. J., and Hancock, J. M., 1970, Ammonites of the genus Acanthoceras from the Cenomanian of Rouen, France, Palaeontology 13(3): 462–490. [Acanthoceras]
Kennedy, W. J., and Juignet, P., 1993, A revision of the ammonite faunas of the Type Cenomanian. 4. Acantho-ceratinae (Acompsoceras, Acanthoceras, Protacanthoceras, Cunningtoniceras and Thomelites), Cretaceous Research 14: 145–190. [Acanthoceras, Acompsoceras]
Kennedy, W. J., and Juignet, P., 1994a, A revision of the ammonite faunas of the type Cenomanian 5. Acantho-ceratinae (Calycoceras (Calycoceras), C. (Gentoniceras) and C. (Newboldiceras), Cretaceous Research 15: 17–57. [Calycoceras]
Kennedy, W. J., and Juignet, P., 1994b, A revision of the ammonite faunas of the type Cenomanian 6. Acantho-ceratinae (Calycoceras (Proeucalycoceras), Eucalycoceras, Pseudocalycoceras, Neocardioceras), Euom-phaloceratinae, Mammitinae and Vascoceratidae, Cretaceous Research 15: 469–501. [Calycoceras, Metoicoceras, Neocardioceras]
Kennedy, W. J., Juignet, P., and Hancock, J. M., 1981, Late Cenomanian ammonites from Anjou and the Vendee, western France, Palaeontology 24(1): 25–84. [Metoicoceras]
Kennedy, W. J., Wright, C. W., and Hancock, J. M., 1980, Origin, evolution, and systematics of the Cretaceous am-monoid Spathites, Palaeontology 23(4): 821–837. [Metoicoceras]
Matsumoto, T., 1960, On some type ammonites from the Gulf Coast Cretaceous, Kyushu University Faculty of Sciences, Science Reports, Geology 5(1): 36–49. (In Japanese). [Plesiacanthoceras]
Matsumoto, T., and Obata, I., 1966, An acanthoceratid ammonite from Sakhalin, Bulletin of the National Science Museum 9(1): 43–52. [Plesiacanthoceras]
Morrow, A. L., 1935, Cephalopods from the Upper Cretaceous of Kansas, Journal of Paleontology 9(6): 463–473.[Acanthoceras]
Neumayr, M., 1875, Die ammoniten der Kriede und die Systematik der Ammonitiden, Zeitschr. deutsch, geol Gesell., Band 27: 854–892. [Acanthoceras]
Owen, H. G., 1971, Middle Albian stratigraphy in the Anglo-Paris Basin, Bulletin of the British Museum of Natural History (Geology) 71 (Supplement 8): 1–164. [Lyelliceras]
Spath, L. F., 1921, On Cretaceous Cephalopoda from Zululand, Annals of the South African Museum 12:217–321. [Lyelliceras]
Spath, L. F., 1926, On new ammonites from the Cretaceous Chalk, Geological Magazine 63(740): 77–83. [Neocardioceras]
Spath, L. F., 1931, A Monograph of the Ammonoidea of the Gault, Volume II, Part VIII, Monograph of the Pa-laeontographical Society. [Lyelliceras]
Stephenson, L. W., 1952, Larger invertebrate fossils of the Woodbine formation (Cenomanian) of Texas, USGS Professional Paper 242. [Acanthoceras]
Stephenson, L. W., 1955, Basal Eagle Ford fauna (Cenomanian) in Johnson and Tarrant counties, Texas, USGS Professional Paper 247 - C [Acanthoceras, Tarrantoceras]
Thomel, G., 1980, Ammonites, Nice: Editions Serre [Acanthoceras, Calycoceras, Lyelliceras, Metoicoceras, Stoliczkaia]
Warren, P. S., and Stelck, C. R., 1940, Cenomanian and Turonian faunas in the Pouce Coupe district, Alberta and British Columbia, Royal Society of Canada Transactions, third series 34(4): 143–152. [Dunveganoceras]
Wright, C. W., 1963, Cretaceous ammonites from Bathurst Island, Northern Australia, Palaeontology 6(4): 597–614. [Acanthoceras]
Wright, C. W., and Kennedy, W. J., 1981, The Ammonoidea of the Plenus Marls and the Middle Chalk, Monograph of the Paleontographical Society. [Mammites, Neocardioceras, Spathites]
Wright, C. W., and Kennedy, W. J., 1984, The Ammonoidea of the Lower Chalk, Part I, Monograph of the Palaeontological Society. [Forbesiceras, Mantelliceras, Sharpeiceras, Stoliczkaia]
Wright, C. W., and Kennedy, W. J., 1987, The Ammonoidea of the Lower Chalk, Part 2, Palaeontographical Society Monographs, pp. 127–218. [Acanthoceras, Acompsoceras, Calycoceras, Cunningtoniceras, Plesiacanthoceras]
Young, K., 1957, Cretaceous ammonites from eastern Apache County, Arizona, Journal of Paleontology 31(6): 1167–1174. [Metoicoceras]
Young, K., 1958, Graysonites, a Cretaceous ammonite in Texas, Journal of Paleontology 32(1):171–182. [Graysonites]
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Yacobucci, M.M. (1999). Plasticity of Developmental Timing as the Underlying Cause of High Speciation Rates in Ammonoids. In: Olóriz, F., Rodríguez-Tovar, F.J. (eds) Advancing Research on Living and Fossil Cephalopods. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4837-9_6
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