PBDB

Buck Spring Quarries (Eocene of the United States)

Also known as CM loc. 1040; K-6

Where: Natrona County, Wyoming (43.2° N, 107.1° W: paleocoordinates 47.8° N, 90.2° W)

• coordinate based on political unit

When: Lost Cabin Member (Wind River Formation), Lostcabinian (55.8 - 50.3 Ma)

• B-2 Horizon
said to be Lostcabinian

Environment/lithology: terrestrial

Primary reference: R. K. Stucky, L. Krishtalka, and A. D. Redline. 1990. Geological Society of America Special Paper 243 [J. Alroy/J. Alroy/M. Kosnik]more details

PaleoDB collection 15917: authorized by John Alroy, entered by John Alroy on 18.02.1993

Creative Commons license: CC BY (attribution)

Taxonomic list

• shown as SW of K-5 on large map but SE of K-6; the latter therefore puts it across the county line in Natrona County
cannot be correlated with standard Buck Spring section (K-5 area), apart from occurrence of DR Stratum
not the same as either CM loc. 1039 (K-5 area) or Guthrie's Locality 3 (UCM loc. 81029, "Dark Red Stratum")

Show authors, comments, and common names

unclassified
-	Amaramnus sp. Amaramnus sp.
Mammalia
Primates - Microsyopidae	Uintasorex sp., Microsyops sp., Microsyops cf. scottianus Uintasorex sp. Matthew 1909 primate Microsyops sp. Leidy 1872 primate said to be new Microsyops cf. scottianus Cope 1881 primate
Primates - Omomyidae	Absarokius abbotti¹, Shoshonius cooperi, Hemiacodon casamissus n. sp.² Absarokius abbotti¹ Loomis 1906 tarsier Shoshonius cooperi Granger 1910 tarsier described by Beard and MacPhee 1994 Hemiacodon casamissus n. sp.² Beard et al. 1992 tarsier from CM 1040, collected in 1989
Primates - Notharctidae	Notharctus venticolus, Cantius nunienus¹ Notharctus venticolus Osborn 1902 primate described by Krishtalka et al. 1990 Cantius nunienus¹ Cope 1881 primate
Primates - Paromomyidae	Phenacolemurinae indet.¹ Phenacolemurinae indet.¹ Simpson 1955 primate
Cimolesta - Coryphodontidae	Coryphodon sp. Coryphodon sp. Owen 1845 pantodont
Cimolesta - Palaeoryctidae	"Palaeoryctidae" indet. "Palaeoryctidae" indet. Winge 1917 eutherian
Cimolesta - Pentacodontidae	Amaramnis sp.¹ Amaramnis sp.¹ Gazin 1962 eutherian
Leptictida - Leptictidae	Palaeictops multicuspis Palaeictops multicuspis Granger 1910 eutherian
Rodentia - Sciuravidae	Pauromys sp., Knightomys sp. Pauromys sp. Troxell 1923 rodent Knightomys sp. Gazin 1961 rodent
Rodentia - Ischyromyidae	? Mattimys sp., Microparamys sp., Paramys copei, cf. Thisbemys sp. ? Mattimys sp. Korth 1984 rodent Microparamys sp. Wood 1959 rodent Paramys copei Loomis 1907 rodent cf. Thisbemys sp. Wood 1959 rodent
Lipotyphla - Geolabididae	Centetodon sp. Centetodon sp. Marsh 1872 placental "A" and "B"
Placentalia -	Perissodactyla indet.¹ Perissodactyla indet.¹ Owen 1848 odd-toed ungulate
Perissodactyla - Brontotheriidae	Lambdotherium popoagicum Lambdotherium popoagicum Cope 1880 brontothere
Perissodactyla -	Heptodon cf. posticus, Heptodon calciculus¹ Heptodon cf. posticus Cope 1882 odd-toed ungulate Heptodon calciculus¹ Cope 1880 odd-toed ungulate
Perissodactyla - Palaeotheriidae	Hyracotherium vasacciense Hyracotherium vasacciense Cope 1872 odd-toed ungulate
Tribosphenida - Nyctitheriidae	Nyctitherium sp. Nyctitherium sp. Marsh 1872 placental
Tribosphenida -	Erinaceomorpha indet.¹, Talpavus sp. Erinaceomorpha indet.¹ Gregory 1910 placental Talpavus sp. Marsh 1872 placental
Ferae -	Creodonta indet. Creodonta indet. Cope 1875 creodont
Creodonta - Oxyaenidae	Oxyaenidae indet.¹ Oxyaenidae indet.¹ Cope 1877 creodont
Ferae - Viverravidae	Didymictis altidens, Viverravus lutosus Didymictis altidens Cope 1880 placental Viverravus lutosus Gazin 1952 placental
Ferae -	Carnivora indet. Carnivora indet. Bowditch 1821 carnivoran
Carnivora - Miacidae	? Miacis sp. ? Miacis sp. Cope 1872 carnivoran
Ferae - Epoicotheriidae	Dipassalus oryctes⁴ Dipassalus oryctes⁴ Rose et al. 1991 placental
Ferae - Metacheiromyidae	cf. Palaeanodon sp.⁴ cf. Palaeanodon sp.⁴ Matthew 1918 placental
Macroscelidea - Amphilemuridae	Scenopagus priscus, Scenopagus edenensis, Macrocranion sp. Scenopagus priscus Marsh 1872 elephant shrew Scenopagus edenensis McGrew et al. 1959 elephant shrew Macrocranion sp. Weitzel 1949 elephant shrew
Chiroptera - Natalidae	Honrovits tsuwape n. gen. n. sp.³ Honrovits tsuwape n. gen. n. sp.³ Beard et al. 1992 funnel-eared bat two forms, one of which is Honrovits tsuwape type of Beard et al. 1992
Ungulata - Hyopsodontidae	Hyopsodus walcottianus, Hyopsodus wortmani Hyopsodus walcottianus Matthew 1915 condylarth confirmed by Redline 1997 Hyopsodus wortmani Osborn 1902 condylarth includes "H. paulus": Redline 1997
Ungulata - Homacodontidae	Antiacodon sp.⁵ Antiacodon sp.⁵ Marsh 1872 even-toed ungulate (pers. comm. 7.4.94)
Ungulata - Leptochoeridae	Diacodexis woltonensis Diacodexis woltonensis Krishtalka and Stucky 1985 even-toed ungulate
Ungulata - Diacodexeidae	Bunophorus sinclairi, Diacodexis secans Bunophorus sinclairi Guthrie 1966 even-toed ungulate Diacodexis secans Cope 1881 even-toed ungulate sensu stricto: see Krishtalka and Stucky 1985
Ungulata - Phenacodontidae	Phenacodus sp.¹, Phenacodus vortmani Phenacodus sp.¹ Cope 1873 condylarth Phenacodus vortmani Cope 1880 condylarth
Insectivora - Apatemyidae	Apatemys sp. Apatemys sp. Marsh 1872 insectivoran "A" and "B"
Acreodi - Hapalodectidae	Hapalodectes sp. Hapalodectes sp. Matthew 1909 condylarth
Hyaenodonta -	Prolimnocyon antiquus Prolimnocyon antiquus Matthew and Granger 1915 eutherian
Hyaenodonta - Hyaenodontidae	Hyaenodontidae indet. Hyaenodontidae indet. Leidy 1869 eutherian "A" and "B"
Hyaenodonta -	Didelphodus sp. Didelphodus sp. Cope 1882 eutherian "A" and "B"
Theriiformes - Peradectidae	Armintodelphys dawsoni, Armintodelphys blacki, Peradectes chesteri Armintodelphys dawsoni Krishtalka and Stucky 1983 metatherian Armintodelphys blacki Krishtalka and Stucky 1983 metatherian Peradectes chesteri Gazin 1952 metatherian
Theriiformes - Herpetotheriidae	"Copedelphys innominata" = Herpetotherium innominatum¹, "Herpetotherium marsupium" = Peratherium marsupium¹ "Copedelphys innominata" = Herpetotherium innominatum¹ Simpson 1928 marsupial "Herpetotherium marsupium" = Peratherium marsupium¹ Troxell 1923 marsupial

¹Alroy 2002; ²Beard et al. 1992; ³Beard et al. 1992; ⁴Rose et al. 1991; ⁵Stucky 1994