Palaeobiodiversity and Palaeoenvironments

, Volume 90, Issue 1, pp 83–98

A new species of Amphilagus (Mammalia: Lagomorpha) from the Late Oligocene lake deposits of Enspel (Westerwald, Germany)

Original paper

Abstract

The Paleogene lagomorph record in Europe is based exclusively on dental remains—with the exception of an undetermined skeleton from the Late Oligocene oil shale locality of Rott, Germany (Paleogene Mammal Unit MP 30). The specimen described here was excavated from the Late Oligocene oil shales of the Enspel locality in the Westerwald, Germany. These crater lake deposits have an 40Ar/39Ar date of between 24.79 Ma and 24.56 Ma and are biostratigraphically correlated with MP 28. The specimen is preserved as a skull with an almost complete dentition and mandibles as well as an articulated partial skeleton with trunk and forelimbs. Based on the dentition, it can be safely attributed to the European early lagomorph Amphilagus, and it is one of the oldest representatives of the genus. The cheek teeth are significantly larger than those of Amphilagus antiquus, the only species known from the European Paleogene. Therefore, we assign the Enspel lagomorph to a new species of Amphilagus. The Enspel specimen represents a juvenile individual based on the presence of almost unworn cheek teeth and a number of deciduous teeth. On the basis of the development of the dentition and skeletal elements, we estimate the individual age of the animal at about 5 weeks. Nevertheless, it is much larger than the Rott lagomorph, which also is a juvenile individual of approximately the same age, suggesting that the Rott lagomorph represents a taxon different from the Enspel Amphilagus.

Keywords

Dentition Morphology Ontogeny Paleogene Skeleton Skull 

References

  1. Angelone C (2007) Messinian Prolagus (Ochotonidae, Lagomorpha) of Italy. Geobios 40:407–421CrossRefGoogle Scholar
  2. Angelone C (2009) Lagomorphs from the Miocene of Sandelzhausen (southern Germany). Paläont Z 83:67–75CrossRefGoogle Scholar
  3. Angermann R (2004) Lagomorpha, Hasentiere. In: Westheide W, Rieger R (eds) Spezielle Zoologie. Teil 2: Wirbel- oder Schädeltiere. Spektrum Akademischer Verlag, Munich, pp 524–531Google Scholar
  4. Böhme M (2000) Die Cypriniden (Teleostei: Cyprinidae) des oberoligozänen Maares von Enspel nebst Bemerkungen zur Phylogenie und Biogeographie der Phoxininae. Paläont Z 74:99–112Google Scholar
  5. Dawson MR (1969) Osteology of Prolagus sardus, a Quaternary ochotonid (Mammalia, Lagomorpha). Palaeovertebrata 2:157–190Google Scholar
  6. De Iuliis G, Pulerà D (2007) The dissection of vertebrates. A laboratory manual. Elsevier, AmsterdamGoogle Scholar
  7. Engesser B, Storch G (1999) Eomyiden (Mammalia, Rodentia) aus dem Oberoligozän von Enspel im Westerwald (Westdeutschland). Eclogae Geol Helv 92:483–493Google Scholar
  8. Forsyth-Major CI (1899) On fossil and recent Lagomorpha. Trans Linn Soc Lond 7:433–520Google Scholar
  9. Fraguglione D (1957) Die Milchzähne des Feldhasen (Lepus europaeus Pallas 1778). Z Jagdwiss 3:141–145CrossRefGoogle Scholar
  10. Heissig K, Schmidt-Kittler N (1976) Neue Lagomorphen-Funde aus dem Mitteloligozän. Mitt Bayer Staatsslg Paläont Hist Geol 16:83–93Google Scholar
  11. Li CK, Meng J, Wang JQ (2007) Dawsonolagus antiquus, a primitive lagomorph from the Eocene Arshanto Formation, Nei Mongol, China. Bull Carnegie Mus Nat Hist 39:97–110CrossRefGoogle Scholar
  12. Lopatin AV, Averianov AO (2008) The earliest lagomorph (Lagomorpha, Mammalia) from the basal Eocene of Mongolia. Doklady Biol Sci 419:131–132CrossRefGoogle Scholar
  13. Lopez N, Thaler L (1974) Sur le plus ancien lagomorphe européen et la “Grande Coupure” oligocène de Stehlin. Palaeovertebrata 6:243–251Google Scholar
  14. Lopez-Martinez N (2008) The lagomorph fossil record and the origin of the European Rabbit. In: Alves PC, Ferrand N, Hackländer K (eds) Lagomorph biology: evolution, ecology, and conservation. Springer, Berlin, pp 27–46Google Scholar
  15. Maus M, Wuttke M (2002) Comparative anatomical and taphonomical examination of the larvae of Pelobates decheni Troschel 1861 and Eopelobates anthracinus Parker 1929 (Anura, Pelobatidae) found at the upper Oligocene sites at Enspel (Westerwald/Germany) and Rott (Siebengebirge/Germany). Cour Forsch-Inst Senckenberg 237:129–138Google Scholar
  16. Maus M, Wuttke M (2004) The ontogenetic development of Pelobates cf. decheni tadpoles from the Upper Oligocene of Enspel (Westerwald/Germany). N Jb Geol Paläont Abh 232:215–230Google Scholar
  17. Mertz DF, Renne PR, Wuttke M, Mödden C (2007) A numerically calibrated reference level (MP28) for the terrestrial mammal-based biozonation of the European Upper Oligocene. Int J Earth Sci 96:353–361CrossRefGoogle Scholar
  18. Mörs T (1995) Die Sedimentationsgeschichte der Fossillagerstätte Rott und ihre Alterseinstufung anhand neuer Säugetierfunde (Oberoligozän, Rheinland). Cour Forsch-Inst Senckenberg 187:1–129Google Scholar
  19. Mörs T, von Koenigswald W (2000) Potamotherium valletoni (Carnivora, Mammalia) aus dem Oberoligozän von Enspel im Westerwald. Senckenberg leth 80:257–273CrossRefGoogle Scholar
  20. Moss-Salentjin L (1978) Vestigial teeth in the rabbit, rat and mouse; their relationship to the problem of lacteal dentitions. In: Butler PM, Joysey KA (eds) Development, function and evolution of teeth. Academic Press, London, pp 13–29Google Scholar
  21. Nickel R, Schummer A, Seiferle E (1992) Lehrbuch der Anatomie der Haustiere, vol. 1: Bewegungsapparat. Parey, BerlinGoogle Scholar
  22. Rose KD, Burke DeLeon V, Missiaen P, Rana RS, Sahni A, Singh L, Smith T (2008) Early Eocene lagomorph (Mammalia) from Western India and the early diversification of Lagomorpha. Proc R Soc B 275:1203–1208CrossRefGoogle Scholar
  23. Schindler T, Wuttke M (2010) Geology and limnology of the Enspel Formation (Chattian, Oligocene; Westerwald, Germany). Palaeobio Palaeoenv 90(1). doi:10.1007/s12549-009-0014-4
  24. Schneider E (1987) Pfeifhasen oder Pikas. In: Grzimek B (ed) Grzimeks Enzyklopädie Säugetiere, vol 4. Kindler, Munich, pp 314–324Google Scholar
  25. Smith AT, Weston ML (1990) Ochotona princeps. Mamm Species 532:1–8CrossRefGoogle Scholar
  26. Sorin A, Myers P (2001) Ochotonidae. In: Animal Diversity Web. Available at: http://animaldiversity.ummz.umich.edu/site/accounts/information/Ochotonidae.html. Accessed 20 Feb 2009
  27. Storch G, Engesser B, Wuttke M (1996) Oldest fossil record of gliding in rodents. Nature 379:439–441CrossRefGoogle Scholar
  28. Tobien H (1963) Zur Gebiß-Entwicklung tertiärer Lagomorphen (Mamm.) Europas. Notizbl hess L-amt Bodenforsch 91:16–35Google Scholar
  29. Tobien H (1974) Zur Gebißstruktur, Systematik und Evolution der Genera Amphilagus und Titanomys (Lagomorpha, Mammalia) aus einigen Vorkommen im jüngeren Tertiär Mittel- und Westeuropas. Mainzer Geowiss Mitt 3:95–214Google Scholar
  30. Tobien H (1975) Zur Gebißstruktur, Systematik und Evolution der Genera Piezodus, Prolagus und Ptychoprolagus (Lagomorpha, Mammalia) aus einigen Vorkommen im jüngeren Tertiär Mittel- und Westeuropas. Notizbl Hess L-amt Bodenforsch 103:103–186Google Scholar
  31. Tobien H (1978) Brachyodonty and hypsodonty in some Paleogene Eurasian lagomorphs. Mainzer Geowiss Mitt 6:161–175Google Scholar
  32. Uhl D, Herrmann M (2010) Palaeoclimate estimates for the Late Oligocene taphoflora of Enspel (Westerwald, W-Germany) based on palaeobotanical proxies. Palaeobio Palaeoenv 90(1). doi:10.1007/s12549-009-0018-0
  33. Vinther J, Briggs DEG, Prum RO, Saranathan V (2008) The colour of fossil feathers. Biol Lett 4:522–525CrossRefGoogle Scholar
  34. Vinther J, Briggs DEG, Clarke J, Mayr G, Prum RO (2010) Structural coloration in a fossil feather. Biol Lett 6:128–131Google Scholar
  35. Viret J (1929) Les faunes de mammifères de l’Oligocène supérieur de la Limagne Bourbonnaise. Ann Univ Lyon N S 1:1–47Google Scholar
  36. von Koenigswald W, Mörs T (1996) Die Säugetierfunde von Rott. In: von Koenigswald W (ed) Fossillagerstätte Rott bei Hennef im Siebengebirge. Das Leben an einem subtropischen See vor 25 Millionen Jahren, 2nd edn. Rheinlandia, Siegburg, pp 83–97Google Scholar
  37. von Koenigswald W, Wuttke M (1987) Zur Taphonomie eines unvollständigen Skelettes von Leptictidium nasutum aus dem Ölschiefer von Messel. Geol Jb Hessen 115:65–79Google Scholar
  38. von Meyer H (1870) Ueber Titanomys Visenoviensis und andere Nager aus der Braunkohle von Rott. Palaeontogr 17:225–232Google Scholar
  39. Wedmann S, Poschmann M, Hörnschemeyer T (2010) Fossil insects from the Late Oligocene Enspel Lagerstätte and their palaeobiogeographic and palaeoclimatic significance. Palaeobio Palaeoenv 90(1). doi:10.1007/s12549-009-0013-5 CrossRefGoogle Scholar
  40. Wible JR (2007) On the cranial osteology of the Lagomorpha. Bull Carnegie Mus Nat Hist 39:213–234CrossRefGoogle Scholar
  41. Wuttke M (1983) “Weichteilerhaltung” durch lithifizierte Mikroorganismen bei mittel-eozänen Vertebraten aus dem Ölschiefer der “Grube Messel” bei Darmstadt. Senckenberg leth 64:509–527Google Scholar
  42. Wuttke M (1988) Erhaltung – Lösung – Umbau, zum Verhalten biogener Stoffe bei der Fossilisation. In: Schaal S, Ziegler W (eds) Messel—Ein Schaufenster in die Geschichte der Erde und des Lebens. Frankfurt a.M, Waldemar Kramer, pp 265–275Google Scholar
  43. Wuttke M, Poschmann M (2010) First finding of fish in the diet of water-dwelling extinct frog Palaeobatrachus from the Upper Oligocene Fossil-Lagerstätte Enspel (Westerwald Mountains, Western Germany). Palaeobio Palaeoenv 90(1). doi:10.1007/s12549-009-0019-z
  44. Zhang F, Kearns SL, Orr PJ, Benton MJ, Zhou Z, Johnson D, Xu X, Wang X (2010) Fossilized melanosomes and the colour of Cretaceous dinosaurs and birds. Nature. doi:10.1038/nature08740

Copyright information

© Senckenberg, Gesellschaft für Naturforschung and Springer 2010

Authors and Affiliations

  1. 1.Department of PalaeozoologySwedish Museum of Natural HistoryStockholmSweden

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