Medicine Rocks Site 1, Vereinigte Staaten von Amerika (USA)


Fundort: Medicine Rocks Site 1, Vereinigte Staaten von Amerika (USA), Montana, Vereinigte Staaten von Amerika (USA)
Taxon: Pronothodectes matthewi aus der Familie Plesiadapidae
Fossilien und Beschreibung der Fundstelle:
7 Fossilien gefunden:
Bezeichng. Anzahl Seite Körpert./Zahn Abkürzg.
9unterer Molar(m1)
3unterer Molar(m1)
3oberer Molar(M1)
3oberer Molar(M2)
1oberer Molar(M3)
7unterer Molar(m2)
8unterer Molar(m3)
Mesofossils, "The Medicine Rocks Sandstone, a unit that was originally mapped as part of the Tongue River Member of the Fort Union Formation. More recent work, however, has shown that the Medicine Rocks Sandstone is bounded by unconformities and it has thus been designated as its own unit, now called the Ekalaka Member of the Fort Union Formation YPM PU 16781 is from “Locality 1,” which Sloan (1970) grouped with other localities into an assemblage named Medicine Rocks I. A tentative Torrejonian 3 age is typically given on the basis of the mammalian assemblage found at that site (e.g., Lofgren et al. 2004)" (Joyce et al. 2009), "sandstone" (Estes 1976)
Geschätztes Alter
der Fundstelle:
zwischen 61,7 und 63,3 Millionen Jahre aus der Fort Union Formation in Vereinigte Staaten von Amerika (USA)
Geologie, Sratigraphie Danian / Torrejonian / Fort Union
Koordinaten: 46° 2 ' 59 '' N, 104° 28 ' 59 '' W

Literatur

P. D. Gingerich 1976, Cranial Anatomy and Evolution of Early Tertiary Plesiadapidae (Mammalia, Primates). University of Michigan Papers on Paleontology. 15, p. 1 - 141

Systematik

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