PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
2009 | 54 | 2 |

Tytuł artykułu

Cynodont teeth from the Carnian [Late Triassic] of Northern Italy

Autorzy

Treść / Zawartość

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
A jaw fragment with three teeth preserved, collected from the Gorno Formation (Carnian, Upper Triassic) of Lombardy (Italy) is described. The teeth are transversely elongated, threecusped and bear anterior and posterior cingula. Their overall morphology supports their identification as postcanines of a “eucynodontian”. The unique tooth morphology of the new specimen supports its attribution to a new genus and species, while at the same time precluding positive assignment to already known gomphodont families. There is a fairly small record of gomphodont cynodonts in Europe, so that the described specimen adds to the knowledge of the distribution and diversity of European gomphodonts and it also represents the first ever collected in Italy.

Wydawca

-

Rocznik

Tom

54

Numer

2

Opis fizyczny

p.357-360,fig.,ref.

Twórcy

autor
  • Dipartimento di Biologia Strutturale e Funzionale, Universita degli Studi dell'Insubria, via Dunant 3, 21100 Varese, Italy
autor

Bibliografia

  • Abdala, F.J. and Ribeiro, A.M. 2003. A new traversodontid cynodont from the Santa Maria Formation (Ladinian–Carnian) of southern Brazil, with a phylogenetic analysis of Gondwanan traversodontids. Zoological Journal of the Linnean Society 139: 529–545.
  • Abdala, F., Neveling, J., and Welman J. 2006. A new trirachodontid cynodont from the lower levels of the Burgersdorp Formation (Lower Triassic) of the Beaufort Group, South Africa and the cladistic relationships of Gondwanan gomphodonts. Zoological Journal of the Linnean Society 147: 383–413.
  • Allasinaz, A. 1966. La fauna a lamellibranchi dello Julico (Carnico medio). Rivista Italiana di Paleontologia e Stratigrafia 72: 609–720.
  • Assereto, R. and Casati, P. 1965. Revisione della stratigrafia Permo−Triassica della Val Camonica meridionale (Lombardia). Milano. Rivista Italiana di Paleontologia e Stratigrafia 71: 999–1097.
  • Benton, M.J. 1984. Tooth form, growth, and function in Triassic rhynchosaurs (Reptilia, Diapsida). Palaeontology 28: 207–234.
  • Bonaparte, J.F. 1966. La Familia Traversodontidae (Terapsida–Cynodontia). Acta Geologica Lilloana 4: 163–194.
  • Brusca, C., Gaetani, M., Jadoul, F., and Viel, G. 1981. Paleogeografia e metallogenesi del Sudalpino. Memorie della Società Geologica Italiana 22: 65–82.
  • Carroll, R.L. and Lindsay, W. 1985. Cranial anatomy of the primitive reptile Procolophon. Canadian Journal of Earth Sciences 22: 1571–1587.
  • Colbert, E.H. 1946. Hypsognathus a Triassic reptile from New Jersey. Bulletin of the American Museum of Naural History 86: 225–274.
  • Crompton, A.W. 1955. On some Triassic cynodonts from Tanganyika. Proceedings of the Zoological Society of London 125: 617–669.
  • Crompton, A.W. 1972. Postcanine occlusion in cynodonts and tritylodontids. Bulletin British Museum of Natural History (Geology) 21: 29–71.
  • Edmund, A.G. 1969. Dentition. In: C. Gans, A. Bellairs, and T. Parsons (eds.), Biology of the Reptilia. Volume 1, 117–200. Academic Press, New York.
  • Flynn, J.J., Parrish, J.M., Amimanana, B.R., Ranivoharimanana, L., Sympson, W.F., and Wyss, A.R. 2000. New traversodontids (Synapsida: Eucynodontia) from the Triassic of Madagascar. Journal of Vertebrate Paleontology 20: 422–427.
  • Garzanti, E. 1985. Petrography and diagenesis of Upper Triassic volcanic arenites (San Giovanni Bianco, Gorno and Val Sabbia Formations; Bergamasc Alps). Bollettino della Società Geologica Italiana 104: 3–20.
  • Garzanti, E. and Jadoul, F. 1985. Stratigrafia e paleogeografia del Carnico lombardo (Sondaggio S. Gallo, Val Brembana). Rivista Italiana di Paleontologia e Stratigrafia 91: 295–320.
  • Gnaccolini, M. 1988. Arenaria di Val Sabbia e Formazione di Gorno: Un sistema deposizionale delta−laguna nel Trias superiore delle Prealpi Bergamasche.Rivista Italiana di Paleontologia e Stratigrafia 93: 329–336.
  • Gnaccolini, M. and Jadoul, F. 1988. Il sistema deposizionale delta−laguna−piattaforma carbonatica: un esempio del Trias superiore lombardo (Alpi Meridionali).Rivista Italiana di Paleontologia e Stratigrafia 93: 10–32.
  • Godefroit, P. and Battail, B. 1997. Late Triassic cynodonts from Saint−Nicolas−de−Port (north−eastern France). Geodiversitas 19: 567–631.
  • Gow, C.E. 1977. Tooth function and succession in the Triassic reptile Procolophon trigoniceps. Palaeontology 20: 695–704.
  • Hahn, G., Lepage, J.C., and Wouters, G. 1988. Traversodontiden−Zähne (Cynodontia) aus der Ober−Trias von Gaume (Sud−Belgien). Bulletin de l’Institut Royal des Sciences Naturelles de Belgique Sciences de la Terre 58: 177–186.
  • Hopson, J.A. 1984. Late Triassic traversodont cynodonts from Nova Scotia and southern Africa. Palaeontologia Africana 25: 181–201.
  • Hopson, J.A. and Sues, H.D. 2006. A traversodont cynodont from the Middle Triassic (Ladinian) of Baden−Württemberg (Germany). Paläontologische Zeitschrift 80: 124–129.
  • Kemp, T.S. 1982. Mammal−like Reptiles and the Origin of Mammals. 363 pp. Academic Press, London.
  • Kemp, T.S. 1980. Aspects of the structure and functional anatomy of the Middle Triassic cynodontLuangwa. Journal of Zoology London 191: 193–239.
  • Ivakhnenko, M.F. 1973. Skull structure in the Early Triassic procolophonian Tichvinskia vjatkensis. Palaeontological Journal 4: 511–518.
  • Lucas, S.G. and Hunt, A.P. 1994. The chronology and paleobiogeography of mammalian origins. In: N.C. Fraser and H.D. Sues (eds.), In the Shadow of Dinosaurs, Early Mesozoic Tetrapods, 335–351. Cambridge University Press, Cambridge.
  • Lucas, S.G., Estep, J.W., Heckert, A.B., and Hunt, A.P. 1999. Cynodont teeth from the Upper Triassic of New Mexico, USA. Neues Jahrbuch für Geologie und Paläontologie Monatshefte 1999: 331–344.
  • Nursall, J.R. 1996. The phylogeny of pycnodont fishes. In: G. Arratia and G. Viohl (eds.), Mesozoic Fishes, Systematics, and Paleoecology. Proceedings of the International Meeting Buckow 1997, 125–152. Dr. Friedrich Pfeil, Munich.
  • Osborn, H.F. 1903. On the primary division of the Reptilia into two sub−classes, Synapsida and Diapsida. Science 17: 275–276.
  • Renesto, S., Confortini, F., Gozzi, E., Malzanni, M., and Paganoni, A. 2003. A possible rauisuchid (Reptilia, Archosauria) tooth from the Carnian (Late Triassic) of Lombardy (Italy). Rivista Museo Civico di Scienze Naturali “E. Caffi” Bergamo 22: 109–114.
  • Renesto, S., Gozzi, E., and Tintori, A. 2005. Archosaur (possibly theropod) teeth from the Norian (Late Triassic) of Lombardy (Northern Italy) Neues Jahrbuch für Geologie und Palaeontology Monatshefte 2005: 529–546.
  • Small, B.Y. 1997. A new procolophonid from the Upper Triassic of Texas with a description of tooth replacement and implantation. Journal of Vertebrate Paleontology 17: 674–678.
  • Spielmann, J.A., Lucas S.G., Heckert, A.B., Rinehart, L.F., and Hunt, A.P. 2007. Taxonomy and biostratigraphy of the Late Triassic archosauromorph Trilophosaurus. New Mexico Museum of Natural History and Science Bulletin 40: 231–240.
  • Sues H.D. and Olsen, P.E. 1990. Triassic vertebrate of Gondwanan aspect from the Richmond Basin of Virginia. Science 249: 1020–1023.

Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

bwmeta1.element.agro-article-946f532f-3829-45f7-bc1a-96e2b46d8269
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.