PBDB Collection

Upper Meniscotherium (Eocene of the United States)

Also known as UCMP V71238; Palatobaena gaffneyi type locality

Where: Sweetwater County, Wyoming (41.7° N, 109.0° W: paleocoordinates 46.6° N, 92.6° W)

• coordinate based on political unit

When: Wa7 mammal zone, Main Body Member (Wasatch Formation), Wasatchian (55.8 - 50.3 Ma)

• Main body of Wasatch Formation

Environment/lithology: fluvial; massive, lag sandstone

• The Upper Meniscotherium locality corresponds

•to the basal lag deposit in a sandstone unit with clay-pebble lenses

•and unionid clams that immediately overlies and cuts into the

•mudstone of V71237 (UCMP locality records; also see Williamson

•2001). Strait et al. 2016: "massive, moderately-indurated sandstone unit that immediately overlies the mudstone of V71237. In V71238 fossils are found as lag in apprximately 10 cm at the base of this sandstone unit and appear to represent a direct reworking of the underlying mudstone unit."

Size classes: macrofossils, mesofossils, microfossils

Collected in 1972 onward; reposited in the UCM, UCMP

Collection methods: surface (float), surface (in situ), sieve

• collected repeatedly by UCMP and UCM crews

Primary reference: J. D. Archibald and J. H. Hutchison. 1979. Revision of the genus Palatobaena (Testudines, Baenidae), with the description of a new species. Postilla 177:1-19 [P. Mannion/P. Mannion/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 118482: authorized by Philip Mannion, entered by Philip Mannion on 14.10.2011, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

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Aves
Neornithes -	Anseriformes indet.² Anseriformes indet.² Wagler 1831 waterfowl
Reptilia
Crocodylia - Alligatoridae	cf. Allognathosuchus sp.² cf. Allognathosuchus sp.² Mook 1921 crocodilian
Squamata -	Iguania indet.², Anguimorpha indet.² Iguania indet.² squamates Anguimorpha indet.² squamates
Testudines -	Planetochelys sp.² Planetochelys sp.² Weems 1988 turtle
Testudines - Kinosternidae	"Kinosternidae indet." = Kinosternoidea² "Kinosternidae indet." = Kinosternoidea² Hay 1892 mud turtle
Testudines -	"Echmatemys testudinea" = Notomorpha testudinea² "Echmatemys testudinea" = Notomorpha testudinea² Cope 1872 turtle
Testudinata - Baenidae	Palatobaena gaffneyi n. sp. Palatobaena gaffneyi n. sp. Archibald and Hutchison 1979 turtle UCMP 114529 - type (nearly complete skull lacking right orbital region, sutures not co-ossified, slightly distorted)
Mammalia
Multituberculata - Neoplagiaulacidae	Parectypodus sp.², Ectypodus sp.² Parectypodus sp.² Jepsen 1930 multituberculate Ectypodus sp.² Matthew and Granger 1921 multituberculate
Theriamorpha - Leptictidae	Palaeictops sp.², Prodiacodon sp.² Palaeictops sp.² Matthew 1899 eutherian Prodiacodon sp.² Matthew 1929 eutherian
Cimolesta - Apatemyidae	Apatemys sp.² Apatemys sp.² Marsh 1872 eutherian
Cimolesta - Coryphodontidae	Coryphodon sp.² Coryphodon sp.² Owen 1845 pantodont
Cimolesta - Esthonychidae	Esthonyx sp.² Esthonyx sp.² Cope 1874 tillodont
Cimolesta - Pentacodontidae	Amaramnis gregoryi² Amaramnis gregoryi² Gazin 1962 eutherian
Macroscelidea - Adapisoricidae	Adapisoricidae indet.² Adapisoricidae indet.² Schlosser 1887 elephant shrew
Macroscelidea - Apheliscidae	Apheliscus sp.², Haplomylus speirianus² Apheliscus sp.² Cope 1875 elephant shrew Haplomylus speirianus² Cope 1880 elephant shrew
Condylarthra - Hyopsodontidae	Hyopsodus paulus² Hyopsodus paulus² Leidy 1870 condylarth
Creodonta -	Limnocyoninae indet.² Limnocyoninae indet.² Wortman 1902 creodont
Carnivora - Miacidae	Miacidae indet.² Miacidae indet.² Cope 1880 carnivoran
Perissodactyla - Equidae	Arenahippus pernix² Arenahippus pernix² Marsh 1876 horse
Perissodactyla -	Homogalax protapirinus², Cardiolophus semihians² Homogalax protapirinus² Wortman 1896 odd-toed ungulate Cardiolophus semihians² Cope 1882 odd-toed ungulate
Theriamorpha - Phenacodontidae	Meniscotherium tapiacetum² Meniscotherium tapiacetum² condylarth
Artiodactyla - Diacodexeidae	Bunophorus robustus² Bunophorus robustus² Sinclair 1914 even-toed ungulate
Theriamorpha - Nyctitheriidae	Leptacodon sp.², Wyonycteris sp.² Leptacodon sp.² Matthew and Granger 1921 placental Wyonycteris sp.² Gingerich 1987 placental
Theriamorpha - Pantolestoidae	Palaeosinopa sp.² Palaeosinopa sp.² Matthew 1901 placental
Rodentia - Cylindrodontidae	Tuscahomys ctenodactylops² Tuscahomys ctenodactylops² Korth 1984 rodent
Rodentia - Ischyromyidae	Microparamys hunterae², Lophiparamys murinus², Paramys taurus², Paramys copei² Microparamys hunterae² Ivy 1990 rodent Lophiparamys murinus² Matthew 1918 rodent Paramys taurus² Korth 1984 rodent Paramys copei² Loomis 1907 rodent
Primates - Notharctidae	Cantius mckennai², Copelemur sp.² Cantius mckennai² Gingerich and Simons 1977 primate Copelemur sp.² Gingerich and Simons 1977 primate
Primates - Omomyidae	Tetonoides pearcei² Tetonoides pearcei² Gazin 1962 tarsier
Proteutheria - Palaeoryctidae	Aceroryctes dulcis¹ Aceroryctes dulcis¹ Rankin and Holroyd 2014 eutherian
Theriamorpha - Peradectidae	Mimoperadectes sp.², Peradectes protinnaminatus² Mimoperadectes sp.² Bown and Rose 1979 marsupial Peradectes protinnaminatus² marsupial
Actinopteri
Amiiformes - Amiidae	Amiidae indet.² Amiidae indet.² Huxley 1861 bowfin
Lepisosteiformes - Lepisosteidae	cf. Lepisosteus sp.² cf. Lepisosteus sp.² Agassiz 1843 gar
Bivalvia
Unionida - Unionidae	Unionidae indeterminate¹ Unionidae indeterminate¹ freshwater mussel "unionid clams"

¹Rankin and Holroyd 2014; ²Strait et al. 2016