Where: Santa Fe County, New Mexico (35.5° N, 106.2° W: paleocoordinates 36.1° N, 103.1° W)
• coordinate based on political unit
When: Skull Ridge Member (Tesuque Formation), Early/Lower Barstovian (16.3 - 12.5 Ma)
Environment/lithology: terrestrial; lithology not reported
Size class: macrofossils
Reposited in the AMNH
Primary reference: R. H. Tedford. 1981. Mammalian biochronology of the late Cenozoic basins of New Mexico. Geological Society America Bulletin 92 [J. Alroy/J. Alroy/J. Ju]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 19547: authorized by John Alroy, entered by John Alroy on 27.09.1993, edited by Jonathan Marcot and Mark Uhen
Creative Commons license: CC BY (attribution)
Taxonomic list
FT on zircon dates, in Ma:
No. 2 white ash: 14.6 +/- 1.2
No. 4 white ash: 14.1 +/- 1.1
second date on No. 4 ash (Izett & Naeser 1986): 12.7 +/- 1.4
No. 4 white ash redated at 15.42 +/- 0.06 Ma (SCLF Ar-Ar on sanidine) by McIntosh and Quade 1995; No. 3 white ash dated at 15.65 +/- 0.065 Ma according to Quade (1999 personal communication); White Operation Quarry is "just below" the No. 4 ash according to McIntosh and Quade
No. 2 ash redated at 15.59 +/- 0.07 Ma (SCLF AA on sanidine): Kuhle and Smith 2001
underlies Pojoaque Mbr.
"Cosoryx ilfonsensis" of Frick 1937 is omitted by Tedford and Barghoorn 1993
Aves | |
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Mammalia | |
Aphelops megalodus10 Cope 1873 rhinoceros includes "Tesque Locality" and "Skull Ridge" from ""Skull Ridge Member"
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"Merychippus isonesus" = Acritohippus isonesus, "Merychippus cf. intermontanus" = Scaphohippus intermontanus, Anchitheriinae indet.14, Hypohippus cf. pertinax14, Megahippus sp.14
"Merychippus cf. intermontanus" = Scaphohippus intermontanus Merriam 1915 horse
Anchitheriinae indet.14 Leidy 1869 anchitheriine horse "unnamed genus close to Anchitherium"; presumably includes "Anchitherium sp."
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Australocamelus sp.14, Rakomylus raki4, Paramiolabis minutus9, Nothotylopus sp.14, Miolabis sp.14, Aepycamelus sp.14, Michenia sp.14, Protolabis sp.14
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Cynarctoides acridens17, Tomarctus hippophaga17, Tomarctus brevirostris17, Psalidocyon marianae n. sp.17, Microtomarctus cf. conferta14, Paracynarctus kelloggi17, Leptocyon leidyi15, Osbornodon fricki n. sp.16
Cynarctoides acridens17 Barbour and Cook 1914 bone-crushing dog "Tesuque Grant, Skull Ridge Member... Santa Fe County"
Tomarctus hippophaga17 Matthew and Cook 1909 bone-crushing dog "Southeast of White Operation Wash"; "Cuyamunque"; "One mi north of White Operation"
Psalidocyon marianae n. sp.17 Wang et al. 1999 bone-crushing dog "southeast of White Operation, Skull Ridge Member... Sante Fe County"
Paracynarctus kelloggi17 Merriam 1911 bone-crushing dog "Cuyamunque"; "Tesuque"; "east of Tesuque"; "east of Tesuque Fault"; "west of Tesuque, Tesuque Boundary wash, light band east of Tesuque Fault"; "1 mi east of Cuyamunque"; and "5 ft below Ash A in block no. 3 south of Arroyo Seco, Skull Ridge"
Osbornodon fricki n. sp.16 Wang 1994 canid from Skull Ridge N of Pojoaque Church and S of Arroyo Seco
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Amphicyon ingens, "Amphicyon sinapius" = Cynelos sinapius
Amphicyon ingens Matthew 1924 bear-dog
"Amphicyon sinapius" = Cynelos sinapius Matthew 1902 bear-dog | |
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Bassariscus cf. parvus1 Hall 1927 ringtail "west of Cuyamunque"; "southeast of White Operation"; "Third District"; "Skull Ridge" (sensu stricto); "west of highway and north of boundary of Pojoaque Grant, above #4 white ash"; "J Rak wash, 25 feet above ash F"
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"Cupidinimus cf. kleinfelderi" = Perognathoides kleinfelderi7
"Cupidinimus cf. kleinfelderi" = Perognathoides kleinfelderi7 Storer 1970 rodent "Skull Ridge Member, east of Three Sisters Buttes"
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