†Picrodus silberlingi (Picrodontidae)
Picrodus silberlingi ist eine Primatenart innerhalb der Familie Picrodontidae, die ab dem Paläogen (Paläozän) im Danium lebte, das vor rund 66 Millionen Jahren begann und bis vor 61,6 Millionen Jahren andauerte.
Fundorte
Die Funddaten, die Systematik sowie die unten folgende Literatursammlung stammen aus der Paleobiology Database, Lizenz
Daten zu den einzelnen Funden von Picrodus silberlingi
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | Kommentar zur Sammlung |
|---|---|---|---|---|
| Swain Quarry | SE 1/4 NE 1/4 sec 3 T15N R92W, Washakie Basin | Danian zwischen 61.7 und 63.3 Millionen Jahren |
Fort Union | CM loc 217 |
| Kommentar z. Taxonomie | ||||
| there are seven other localities in the same section, but none of the material is described Mesodma pygmaea, i.e. sp. P, not listed, but mentioned by Krause 1977 | ||||
| U.a. am Fundort ausgegraben: | Paromomys maturus | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | |
|---|---|---|---|---|
| Gidley Quarry | Crazy Mountain Basin | Danian zwischen 61.7 und 63.3 Millionen Jahren |
Fort Union | |
| Kommentar z. Stratigraphie | Kommentar z. Taxonomie | |||
| said by Buckley 1993 to be in the same (unidentified) reversed polarity chron as Silberling Quarry, i.e., possibly C27r | many of the types were described by Simpson 1935d Simpson 1935d lists the type of "Chriacus pusillus" from "Gidley or Silberling Quarries" - no other specimens are listed but the type's catalogue number is close to that of other types from Gidley Quarry; however, this record is omitted by Simpson 1937a and later authors |
|||
| U.a. am Fundort ausgegraben: | Palaechthon alticuspis | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Kommentar zur Sammlung | |
|---|---|---|---|---|
| Rock Bench Quarry | Bighorn Basin | Danian zwischen 61.7 und 63.3 Millionen Jahren |
Locality No. 6 | |
| Kommentar z. Stratigraphie | Kommentar z. Taxonomie | |||
| in a stratigraphically isolated reversed polarity zone interpreted as chron 27r: Butler et al. 1987 | >I have used Van Valen's 1978 list of condylarths because Rose gives no reason for ignoring it meter level follows Butler et al. 1981 above two records presumably include "Tricentes cf. punitor" and "cf. Chriacus sp." |
|||
| U.a. am Fundort ausgegraben: | Plesiolestes problematicus | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | Kommentar zur Sammlung |
|---|---|---|---|---|
| Silberling Quarry | near Bear Butte, Crazy Mtn Basin. Gilmore (1938) gives the designation "Sec. 4, T. 5 N., R. 16 E." for the site. | Danian zwischen 61.7 und 63.3 Millionen Jahren |
"Fort Union" (= Lebo) | Simpson's Locality 1; Fish Creek; Bear Butte; Widdecombe Creek; Widdecombe Ranch |
| Kommentar z. Stratigraphie | Kommentar z. Taxonomie | |||
| in a stratigraphically isolated reversed polarity zone interpreted as chron C27r: Butler et al. 1987 | first described by Douglass 1908 | |||
| U.a. am Fundort ausgegraben: | Paromomys maturus | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | |
|---|---|---|---|---|
| Hand Hills West Lower Level | 25 km NE of Drumheller | - zwischen 56.8 und 61.7 Millionen Jahren |
Paskapoo | |
| Kommentar z. Taxonomie | ||||
| Fox 1988 | ||||
| U.a. am Fundort ausgegraben: | Ignacius frugivorus | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | Kommentar zur Sammlung |
|---|---|---|---|---|
| Rainy-day Resurrection | east flank Rock Springs Uplift | - zwischen 56.8 und 61.7 Millionen Jahren |
Fort Union | UW V-77059 |
| Museum | ||||
| UW | ||||
| U.a. am Fundort ausgegraben: | Plesiadapis fodinatus | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | |
|---|---|---|---|---|
| Cedar Point Quarry | 9 mi S of Lovell Jack Horner Res., T55N, R96W, Sect. 23 | - zwischen 56.8 und 61.7 Millionen Jahren |
Fort Union | |
| Museum | Kommentar z. Taxonomie | |||
| UMMP | same level as Jepsen Quarry and "clearly" underlying Croc Tooth and Divide Quarries: Gingerich 1976said by Gingerich and Winkler 1985 to be at "approximately 325 m" but I believe this is based on biochronological inference aloneI have used Van Valen's 1978 list of condylarths because Rose gives no reason for ignoring itsec 23-26 T55N R96W"Claenodon ferox" is omitted by Van Valen 1978 Zone Ti-3 | |||
| U.a. am Fundort ausgegraben: | Plesiadapis rex | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Kommentar zur Sammlung | |
|---|---|---|---|---|
| Douglass Quarry | Crazy Mountain Basin | - zwischen 56.8 und 61.7 Millionen Jahren |
Simpson's Locality 63 | |
| Kommentar z. Stratigraphie | Kommentar z. Taxonomie | |||
| in a stratigraphically isolated reversed polarity zone interpreted as chron C26r: Butler et al. 1987 | Krause and Maas 1990 give exact NISP counts that sum to 1205; however, "over 1800 identifiable specimens" are present according to Hartman and Krause 1993 | |||
| U.a. am Fundort ausgegraben: | Nannodectes intermedius | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | Kommentar zur Sammlung |
|---|---|---|---|---|
| Newell's Nook | Powder River Basin | - zwischen 56.8 und 61.7 Millionen Jahren |
Fort Union | USGS D-2003 |
| Museum | ||||
| USGS | ||||
| U.a. am Fundort ausgegraben: | Nannodectes intermedius | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | |
|---|---|---|---|---|
| Mehling Site | near Ekalaka | Danian zwischen 61.7 und 63.3 Millionen Jahren |
Fort Union | |
| U.a. am Fundort ausgegraben: | Pronothodectes matthewi | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | Kommentar zur Sammlung |
|---|---|---|---|---|
| Medicine Rocks Site 1 | "from six small wind-deflation pockets" near Ekalaka, in SE 1/4 SW 1/4 sec 2 T3N R58E (Estes 1976) | Danian zwischen 61.7 und 63.3 Millionen Jahren |
Fort Union | Medicine Rocks I |
| Kommentar z. Stratigraphie | Lithographie | Kommentar z. Taxonomie | ||
| "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) | said to be To3 several other localities in this area are Tiffanian Site III and Mehling Site are "at essentially the same stratigraphic level": Krause 1987a possibly relevant: Pantolambda bathmodon Simons 1960: "probably occurs in the Medicine Rocks local fauna" Pantolambda cavirictum Simons 1960: "Medicine Rock local fauna" SEE Sloan 1970 |
||
| U.a. am Fundort ausgegraben: | Elphidotarsius florencae | |||
Literatur
G. G. Simpson 1937, The Fort Union of the Crazy Mountain field, Montana and its mammalian faunas. Bulletin of the United States National Museum. 169, p. 1 - 287J. K. Rigby, Jr. 1980, Swain Quarry of the Fort Union Formation, Middle Paleocene (Torrejonian), Carbon County, Wyoming: geologic setting and mammalian fauna. Evolutionary Monographs. 3, p. 1 - 178
K. D. Rose 1981, The Clarkforkian Land-Mammal Age and Mammalian Faunal Composition Across the Paleocene-Eocene Boundary. University of Michigan Papers on Paleontology. 26, p. 1 - 197
G. F. Winterfeld 1982, Mammalian paleontology of the Fort Union Formation (Paleocene), eastern Rock Springs Uplift, Sweetwater County, Wyoming. Contributions to Geology, University of Wyoming. 21:1, p. 73 - 112
L. N. Robinson, J. G. Honey 1987, Geologic setting of a new Paleocene mammal locality in the northern Powder River basin, Montana. Palaios. 2:1, p. 87 - 90
D. W. Krause, M. C. Maas 1990, The biogeographic origins of late Paleocene - early Eocene mammalian immigrants to the Western Interior of North America. Geological Society of America Special Paper. 243:1, p. 71 - 105
R. C. Fox, M. C. Maas 1990, The succession of Paleocene mammals in western Canada. Geological Society of America Special Paper. 243:1, p. 51 - 70
C. 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