Fundstelle SC-133, Vereinigte Staaten von Amerika (USA) - Evolution der Primaten

SC-133, Vereinigte Staaten von Amerika (USA)

Fundort:

SC-133, Vereinigte Staaten von Amerika (USA), Wyoming, Vereinigte Staaten von Amerika (USA)

Taxon:

Arctodontomys wilsoni aus der Familie Microsyopidae

Fossilien und Beschreibung der Fundstelle:

15 Fossilien gefunden:
Anzahl	Körpert./Zahn	Abkürzg.
17	unterer Molar	(m1)
1	unterer Molar	(m1)
1	unterer Molar	(m1)
1	unterer Molar	(m1)
30	unterer Molar	(m1)
6	oberer Prämolar	(P4)
9	oberer Molar	(M1)
6	oberer Molar	(M2)
8	unterer Prämolar	(p4)
16	unterer Molar	(m2)
29	oberer Molar	(M1)
39	oberer Molar	(M2)
29	oberer Molar	(M3)
23	unterer Molar	(m2)
34	unterer Molar	(m3)

Macrofossils,mesofossils, "zone Wa-2 of Gingerich, 1983" the Bird Quarry lens "varies from 10-20 cm in thickness" and the Calcirudite Site is another lens that outcrops "some 10 m higher stratigraphically" and has "a maximum thickness in placs of 30-40 cm", All Bird Quarry fossils are from a lens "within a bed of gray mudstone" that "is a complex mass of brecciated, bioturbated micrite with some spar-filled dessication cracks and rare spar-filled gastropods... distinct [silt-filled] burrows and networks of plant rootlets" whereas "the calcirudite bed is composed of rounded calcium carbonate nodules equivalent in grain size to coarse sand" and "grades upward into a thin platy sandstone"

Geschätztes Alter
der Fundstelle:

zwischen 50,3 und 55,8 Millionen Jahre aus der Willwood Formation in Vereinigte Staaten von Amerika (USA)

Geologie, Sratigraphie

Ypresian / Wasatchian / Willwood

Koordinaten:

44° 45 ' 59 '' N, 109° 5 ' 0 '' W

Die Daten sowie die folgende Systematik stammen aus der Paleobiology Database, Lizenz

Literatur P. D. Gingerich 1987, Early Eocene bats (Mammalia, Chiroptera) and other vertebrates in freshwater limestones of the Willlwood Formation, Clark's Fork Basin, Wyoming. Contributions from the Museum of Paleontology, University of Michigan. 27:11, p. 275 - 320
Systematik Primates †Microsyopidae †Navajovius †Navajovius kohlhaasae †Uintasoricinae †Choctawius †Choctawius mckennai †Choctawius foxi †Niptomomys †Niptomomys doreenae †Niptomomys thelmae †Niptomomys favorum †Uintasorex †Uintasorex montezumicus †Uintasorex parvulus †Microsyopinae †Megadelphus †Megadelphus lundeliusi †Craseops †Craseops sylvestris †Arctodontomys †Arctodontomys wilsoni †Arctodontomys nuptus †Arctodontomys simplicidens †Microsyops †Microsyops elegans †Microsyops cardiorestes †Microsyops kratos †Microsyops scottianus †Microsyops annectens †Microsyops angustidens †Microsyops speirianus †Microsyops latidens †Microsyops knightensis †Nanomomys †Nanomomys thermophilus

SC-133, Vereinigte Staaten von Amerika (USA)

Literatur

Systematik