Palaechthon woodi



Palaechthon woodi ist eine Primatenart, die ab dem Paläogen (Paläozän) im Danium lebte, das vor rund 66 Millionen Jahren begann und bis vor 61,6 Millionen Jahren andauerte.

Fundorte

Systematik

Daten zu den einzelnen Funden von Palaechthon woodi
Sammlung Kommentar zum Fundort Epoche, Alter Geologie, Formation Kommentar zur Sammlung
Big Pocket NW 1/4 sec 14 T27N R11W, Kutz Canyon "Almost all the material was recovered from approximately 100 linear yards of outcrop" (Wilson 1951) Danian
zwischen 61.7 und 63.3 Millionen Jahren
Nacimiento Angels Peak; KUVP Loc. 13; Locality NM 13; NMMNH 2635; UALP 7435, 7436, 75144; NMMNH locality L-2635
Kommentar z. Stratigraphie Lithographie Kommentar z. Taxonomie
from "a zone... three to four feet in thickness... The actual bone layer, not as yet located, may prove to be thinner than this" (Wilson 1951) not far below the middle of a reversed magnetic polarity zone in the Kutz Canyon section interpreted as C27r based on the position of the K-T boundary in the correlative Barrel Spring Arroyo = De-na-zin Wash section: see Butler et al. 1977, Lucas et al. 1997 "reddish silt" (Wilson 1951) UALP localities are at exactly the same level as KUVP 13 but may be at some distance following taxa listed by Williamson and Lucas may be from Big Pocket or a stratigraphically nearby locality: ? Peradectes sp. "D" Pentacodon inversus Protictis haydenianus "Protictis" sp. "A" Protictis (Protictis) sp. "B" Triisodon quivirensis Ellipsodon inaequidens
U.a. am Fundort ausgegraben: Plesiolestes nacimienti
Sammlung Epoche, Alter Geologie, Formation Kommentar zur Sammlung
Kimbetoh Arroyo (Middle) Danian
zwischen 61.7 und 63.3 Millionen Jahren
Nacimiento UALP 7784, 77113, 77114
Kommentar z. Stratigraphie Kommentar z. Taxonomie
three UALP localities are separated stratigraphically by five meters: Tomida 1981 near the top of the local section in a normal paleomag interval that is is probably chron 27n but could be chron 28n called "Upper Kimbetoh" by Tomida 1981
identical to list 12 of Williamson 1996
some records may be from an equivalent level in Betonnie- Tsosie Arroyo
list probably omits some multis
U.a. am Fundort ausgegraben: Paromomys depressidens
Sammlung Epoche, Alter Geologie, Formation Kommentar zur Sammlung
West Flank Torreon Wash (Pantolambda Zone) Danian
zwischen 61.7 und 63.3 Millionen Jahren
Nacimiento Sinclair and Granger Loc. 10 (in part); Torreon Wash Pantolambda Zone (in part); UCMP 87141, 87142; BUNM-77-184, -77-199a; NMMNH L-01287
Kommentar z. Taxonomie
identical to list 26 of Williamson 1996
presumably includes BUNM-77-183 of Tsentas 1981
clearly includes list of Tsentas 1981, despite lack of explicit discussion; includes all Pantolambda Zone taxa mentioned by Lindsay et al. 1978, 1981
two BUNM sites are the same
although Williamson 1996 reports specimen counts for Tsentas Quarry, these apply only to therians
normal polarity, correlated with 27N on basis of biochronology, but there is no independent tie point
U.a. am Fundort ausgegraben: Torrejonia wilsoni
Sammlung Kommentar zum Fundort Epoche, Alter Geologie, Formation Kommentar zur Sammlung
Eastern Tornillo Flat T2, between and 100 yds N of two very prominent black igneous peaks on E edge of Tornillo Flat, at foot of N end of McKinney Hills, Big Bend NP Danian
zwischen 61.7 und 63.3 Millionen Jahren
Black Peaks T2; TMM 40147; Middle Peak; Alligator Alley
Kommentar z. Stratigraphie Museum Kommentar z. Taxonomie
140 ft above base of formation; Torrejonian based on Leslie et al. (2018) TMM 43 m level of Fm.
new records of Williamson 1996 were described by Schiebout 1986 (Ph.D. thesis)
Sammlung Kommentar zum Fundort Epoche, Alter Geologie, Formation
Bangtail Gallatin N. F., Crazy Mountain Basin -
zwischen 56.8 und 61.7 Millionen Jahren
Fort Union
Kommentar z. Taxonomie
far removed from main CMB section of Simpson 1937a
U.a. am Fundort ausgegraben: Plesiolestes problematicus
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

Literatur

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
T. E. Williamson, S. G. Lucas 1993, Paleocene vertebrate paleontology of the San Juan Basin, New Mexico. New Mexico Museum of Natural History Bulletin. 2, p. 105 - 136
T. E. Williamson, S. G. Lucas 1996, The beginning of the age of mammals in the San Juan Basin, New Mexico; biostratigraphy and evolution of Paleocene mammals of the Nacimiento Formation. New Mexico Museum of Natural History and Science Bulletin. 8, p. 1 - 141