†Ignacius fremontensis (Paromomyidae)
Ignacius fremontensis ist eine Primatenart innerhalb der Familie Paromomyidae, die ab dem Paläogen (Paläozän) im Danium lebte, das vor rund 66 Millionen Jahren begann und bis vor 61,6 Millionen Jahren andauerte.
Daten zu den einzelnen Funden von Ignacius fremontensis
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | Kommentar zur Sammlung |
|---|---|---|---|---|
| Who Nose? | near Nose Creek in Calgary in SW 1/4 S23 T25 R1, W5 | Danian zwischen 61.7 und 63.3 Millionen Jahren |
Paskapoo | Nose Creek |
| Kommentar z. Stratigraphie | Kommentar z. Taxonomie | |||
| (?middle Torrejonian, To2), Protoselene opisthacus/Mixodectes pungens Interval Zone of Lofgren et al. (2004). | "fish, amphibians, lizards, and crocodylians" also present | |||
| U.a. am Fundort ausgegraben: | Edworthia greggi | |||
| 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 | |
|---|---|---|---|---|
| Aaron's Locality | 42 km E of Innisfail | - zwischen 56.8 und 61.7 Millionen Jahren |
Paskapoo | |
| Kommentar z. Taxonomie | ||||
| same as Fox 1990a | ||||
| U.a. am Fundort ausgegraben: | Elphidotarsius wightoni | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | Kommentar zur Sammlung |
|---|---|---|---|---|
| Shotgun | NE 1/4 SE 1/4 sec 31 T6N R3W, northern Wind River Basin: MacIntyre 1966 | - zwischen 56.8 und 61.7 Millionen Jahren |
Fort Union | UW V-60014, V-60016; Keefer Hill; Twin Buttes; Jenkins Mountain; New Anthill |
| Kommentar z. Taxonomie | ||||
| this is NOT West Side of Shotgun Butte (see), which is the uppermost of three fossiliferous horizons; the fauna of the lowest horizon is not discussed by Gunnell apart from the plesiadapiforms, Gunnell's list is mostly repeated from ancient sources without modification Gunnell lists Eudaemonema cuspidata from "Shotgun fauna, Keefer Hill" but omits this from his faunal list | ||||
| U.a. am Fundort ausgegraben: | Nannodectes intermedius | |||
| Sammlung | Kommentar zum Fundort | Epoche, Alter | Geologie, Formation | Kommentar zur Sammlung |
|---|---|---|---|---|
| Narcissus (TMP locality L2395) | South side of Bow River, west of Bearspaw Dam near the western limits of the city of Calgary, in Rocky View County | Danian zwischen 61.7 und 63.3 Millionen Jahren |
Porcupine Hills | Bearspaw local fauna; Bow river |
| Kommentar z. Stratigraphie | Lithographie | Museum | ||
| Middle Torrejonian (To2) | Caliche and clay clast lags at the base of massively bedded sandstones | TMP | ||
| U.a. am Fundort ausgegraben: | Plesiolestes problematicus | |||
Literatur
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 - 197R. C. Fox 1988, Late Cretaceous and Paleocene mammal localities of southern Alberta. Occasional Paper of the Tyrrell Museum of Palaeontology. 6, p. 1 - 38
G. F. Gunnell 1989, Evolutionary History of Microsyopoidea (Mammalia, ?Primates) and the Relationship Between Plesiadapiformes and Primates. University of Michigan Papers on Paleontology. 27, p. 1 - 157
C. S. Scott 1997, A new Paleocene mammal site from Calgary, Alberta. Journal of Vertebrate Paleontology. 17:3, p. 74A - 157
C. S. Scott, D. N. Spivak, A. R. Sweet 2013, First mammals from the Paleocene Porcupine Hills Formation of southwestern Alberta, Canada. Canadian Journal of Earth Sciences. 50:3, p. 355 - 378