Open WL Archief (OWA)

Over het archief

Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.

Basisinformatie over ‘Open Access to scholarly information'.

[ meld een fout in dit record ]

mandje (1): toevoegen | toon

---

one publication added to basket [214187]

The taxonomic value of rostral nodes of extinct sharks, with comments on previous records of the genus Lamna (Lamniformes, Lamnidae) from the Pliocene of Lee Creek Mine, North Carolina (USA) Mollen, F.H.; Jagt, J.W.M. (2012). The taxonomic value of rostral nodes of extinct sharks, with comments on previous records of the genus Lamna (Lamniformes, Lamnidae) from the Pliocene of Lee Creek Mine, North Carolina (USA). Acta Geol. Pol. 62(1): 117-127 In: Acta Geologica Polonica. Muzeum Ziemi: Warszawa. ISSN 0001-5709; e-ISSN 2300-1887, meer

---

Beschikbaar in	Auteurs
VLIZ: Open access 233444 [ download pdf ]

---

Trefwoorden

Fossils Geological time > Phanerozoic > Geological time > Cenozoic > Tertiary > Cenozoic > Neogene > Pliocene Identification Cosmopolitodus; Lamna ditropis Hubbs & Follett, 1947 [WoRMS]; Lamna nasus (Bonnaterre, 1788) [WoRMS]; Lamnidae Bonaparte, 1835 [WoRMS]; Megaselachus; Otodontidae USA, North Carolina [Marine Regions] Marien/Kust

Author keywords

Lamnidae; Otodontidae; Lamna nasus; Lamna ditropis; Carcharodon;Cosmopolitodus; Megaselachus; Parotodus; Rostrum; Rostral node; CT scans

---

Auteurs		Top
Mollen, F.H., meer Jagt, J.W.M.

---

Abstract

Shark rostral nodes from the Yorktown Formation (Zanclean, early Pliocene) of Lee Creek Mine, North Carolina (USA), previously assigned to the genus Lamna Cuvier, 1816, have been reinterpreted using a preliminary identification key for extant Lamniformes based on rostral morphology. In addition, the fossil rostral nodes have been compared in detail with Recent material of both the porbeagle, Lamna nasus (Bonnaterre, 1788) and the salmon shark, Lamna ditropis Hubbs and Follet, 1947. Despite the fact that the rostra compared relatively well with those of Recent Lamna, the Lee Creek Mine specimens proved to differ significantly in having near-parallel lateral rostral cartilages that join the rostral node individually, instead of abutting ones. Based on this observation, we here propose to strike the genus Lamna from the Lee Creek Mine faunal list, so long as no other diagnostic material is forthcoming. These partially preserved rostra are likely to have belonged to extinct taxa within the families Lamnidae or Otodontidae, both of which have been documented from the Yorktown Formation on the basis of isolated teeth of at least three species, Cosmopolitodus hastalis (Agassiz, 1838), Megaselachus megalodon (Agassiz, 1835) and Parotodus benedenii (Le Hon, 1871).

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs

IMIS is ontwikkeld en wordt gehost door het VLIZ.