Notharctus robustior (Notharctidae)



Notharctus robustior ist eine Primatenart innerhalb der Familie Notharctidae, die ab dem Paläogen (Eozän) im Ypresium lebte, das vor rund 56 Millionen Jahren begann und bis vor 47,8 Millionen Jahren andauerte.

Fundorte

Systematik

Daten zu den einzelnen Funden von Notharctus robustior
Sammlung Epoche, Alter Geologie, Formation
Henry's Fork Divide Ypresian
zwischen 46.2 und 50.3 Millionen Jahren
Bridger
Kommentar z. Taxonomie
based on maps of Wood 1934, Wheeler 1961, and West 1976a this appears to be the same as Hickey Mountain
presumed to fall entirely in Bridger D based on available records
"Telmatherium cultridens" type is actually from Henry's Fork Hill, see Osborn 1929
Sammlung Epoche, Alter Geologie, Formation Kommentar zur Sammlung
Henry's Fork Hill (Bridger C) Ypresian
zwischen 46.2 und 50.3 Millionen Jahren
Bridger Cedar Mountain; Henry's Fork Table
Kommentar z. Taxonomie
not the same as North of Cedar Mountain (see)
Sammlung Epoche, Alter Geologie, Formation Kommentar zur Sammlung
Henry's Fork Hill (Bridger D) Ypresian
zwischen 46.2 und 50.3 Millionen Jahren
Bridger Cedar Mountain; Henry's Fork Table
Kommentar z. Taxonomie
not the same as North of Cedar Mountain (see)
U.a. am Fundort ausgegraben: Uintasorex parvulus
Sammlung Epoche, Alter Geologie, Formation Kommentar zur Sammlung
Sage Creek (Bridger C) Ypresian
zwischen 46.2 und 50.3 Millionen Jahren
Bridger Sage Creek Spring
U.a. am Fundort ausgegraben: Hemiacodon gracilis
Sammlung Kommentar zum Fundort Epoche, Alter Geologie, Formation Kommentar zur Sammlung
State Line Quarry NW 1/4 sec 1 and NE 1/4 sec 2, T15N, R121W according to Nelson 1974 Ypresian
zwischen 46.2 und 50.3 Millionen Jahren
Fowkes Thomas Canyon
Kommentar z. Stratigraphie Lithographie Kommentar z. Taxonomie
all fossils are from a single quarry within a member "tuffaceous mudstone, sandstone, and siliceous limestone" (Nelson 1973) or "tuffaceous mudstone and sandstone" (Nelson 1974, 1977) close to the Utah state line and well west of the Green River Basin date of 47.9 (49.1 corrected) +/- 1.9 Ma (K-Ar on biotite) on a sample immediately above the quarry; date of 47.7 Ma reported earlier is from a site 48 km to the north
U.a. am Fundort ausgegraben: Omomys carteri
Sammlung Epoche, Alter Geologie, Formation
Sand Wash Lutetian
zwischen 40.4 und 46.2 Millionen Jahren
Washakie
Kommentar z. Stratigraphie Kommentar z. Taxonomie
said to be early Uintan replaces assorted Sand Wash lists of West and Dawson 1975
West and Dawson report specimen counts, but these are not valid estimates in light of the later CM collections
apparently from a restricted stratigraphic interval that is correlable with the lower Adobe Town Mbr. in the Washakie Basin
"Hemiacodon sp." is said to be "Washakius sp." of West and Dawson, which is from Lang Springs

"Viverravus sp." is probably the specimen from Lang Springs described by West and Dawson 1975

"Tillomys cf. senex": probably the specimen from Lang Springs described by West and Dawson 1975

true identity of numerous remaining brontotheres of both West and Dawson 1975 and Stucky et al. is completely unclear; "Tanyorhinus" species could be Dolichorhinus or something else, and "Manteoceras" species could be Metatelmatherium, Dolichorhinus, or Telmatherium; Mader 1989 added Metatelmatherium ultimum to the list, but this is omitted by Stucky et al.; similarly, "Sphenocoelus sp." is listed by Prothero and Schoch 1989 but ignored by both Mader and Stucky et al.
U.a. am Fundort ausgegraben: Microsyops annectens
Sammlung Epoche, Alter Geologie, Formation Kommentar zur Sammlung
Washakie A Lutetian
zwischen 40.4 und 46.2 Millionen Jahren
Washakie LaClede Meadows
Kommentar z. Taxonomie
this unit spans beds 569 to 620 of Roehler; most of this interval is reversed, but there are two normal excursions of unclear significance; it is best treated as a reversed chron immediately preceding the normal chron seen in the overlying unit
Turnbull 1972 distinguished "upper" and "lower" Washakie A faunas but the upper fauna is duplicated almost entirely by the lower fauna and the two are merged by McCarroll et al.; list is still incomplete and certain older i.d.s therefore may be valid
U.a. am Fundort ausgegraben: Microsyops annectens
Sammlung Epoche, Alter Geologie, Formation
Washakie B (Lower) Lutetian
zwischen 40.4 und 46.2 Millionen Jahren
Washakie
Kommentar z. Taxonomie
this unit spans beds 620 to 675 of Roehler; most of the fauna appears to be from the lower half, which is entirely in a normal polarity interval
replaces list of Turnbull 1972

Literatur

W. Granger, W. K. Gregory 1917, A revision of the Eocene primates of the genus Notharctus. Bulletin of the American Museum of Natural History. 37:34, p.
P. Robinson, W. K. Gregory 1957, The species Notharctus from the Middle Eocene. Postilla. 28:34, p. 1 - 27
M. E. Nelson, W. K. Gregory 1977, Middle Eocene primates (Mammalia) from southwestern Wyoming. Southwestern Naturalist. 22:4, p. 487 - 493
R. K. Stucky, D. R. Prothero, W. G. Lohr, J. R. Snyder 1996, Magnetic stratigraphy, sedimentology, and mammalian faunas of the early Uintan Washakie Formation, Sand Wash Basin, northwestern Colorado. The Terrestrial Eocene-Oligocene Transition in North America. :4, p. 40 - 51
S. M. McCarroll, J. J. Flynn, W. D. Turnbull 1996, Biostratigraphy and magnetostratigraphy of the Bridgerian-Uintan Washakie Formation, Washakie Basin, Wyoming. The Terrestrial Eocene-Oligocene Transition in North America. :4, p. 25 - 39, DOI: 10.1017/CBO9780511665431.003