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) | ||||||||||||||||
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| Taxon: | Picrodus silberlingi aus der Familie Picrodontidae | ||||||||||||||||
| Fossilien und Beschreibung der Fundstelle: |
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| 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 | ||||||||||||||||
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Die Daten sowie die folgende Systematik stammen aus der Paleobiology Database, Lizenz
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LiteraturC. S. Scott, R. C. Fox 2005, Windows on the evolution of Picrodus (Plesiadapiformes: Primates): morphology and relationships of a species complex from the Paleocene of Alberta. Journal of Paleontology. 79:4, p. 635 - 657 |
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Systematik |