PBDB Collection

Arroyo Blanco (AMNH Quarry 88) (Eocene of the United States)

Where: Rio Arriba County, New Mexico (36.5° N, 107.0° W: paleocoordinates 41.2° N, 91.7° W)

• coordinate based on political unit

• small collection-level geographic resolution

When: San Jose Formation, Wasatchian (55.8 - 50.3 Ma)

Environment/lithology: terrestrial

Reposited in the AMNH

Primary reference: L. Krishtalka. 1976. Early Tertiary Adapisoricidae and Erinaceidae (Mammalia, Insectivora) of North America. Bulletin of Carnegie Museum of Natural History 1 [J. Alroy/J. Alroy/J. Ju]more details

PaleoDB collection 15453: authorized by John Alroy, entered by John Alroy on 05.01.1995, edited by Terri Cleary and Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

• this is the only major AMNH quarry in this area

Show authors, comments, and common names

Reptilia
Squamata -	Lacertilia indet.⁷ Lacertilia indet.⁷ lizard
Squamata - Iguanidae	cf. Swainiguanoides milleri⁷ cf. Swainiguanoides milleri⁷ Sullivan 1982 squamates
Squamata - Xantusiidae	Palaeoxantusia fera⁷ Palaeoxantusia fera⁷ Hecht 1956 night lizard
Squamata - Anguidae	Anguidae indet.⁷, Glyptosaurinae indet.⁷, Paraglyptosaurus cf. yatkolai⁷, Paraglyptosaurus yatkolai n. sp.⁶ Anguidae indet.⁷ Gray 1825 squamates Glyptosaurinae indet.⁷ Marsh 1872 squamates Paraglyptosaurus cf. yatkolai⁷ Sullivan 1979 squamates AMNH 2600 and 7296 expressly referred as cf. Paraglyptosaurus yatkolai n. sp.⁶ Sullivan 1979 squamates AMNH 5181, anterior half of coalesced frontals
Squamata -	cf. Saniwa sp.⁷ cf. Saniwa sp.⁷ Leidy 1870 squamates
Squamata - Necrosauridae	cf. Provaranosaurus sp.⁷ cf. Provaranosaurus sp.⁷ Gilmore 1942 squamates
Mammalia
Leptictida - Leptictidae	Prodiacodon tauricinerei⁴ Prodiacodon tauricinerei⁴ Jepsen 1930 eutherian
Macroscelidea - Amphilemuridae	"Scenopagus nitens" = Macrocranion nitens⁵ "Scenopagus nitens" = Macrocranion nitens⁵ Matthew 1918 elephant shrew see also Krishtalka 1976a
Perissodactyla - Equidae	Equidae indet.¹ Equidae indet.¹ Gray 1821 horse
Artiodactyla - Diacodexeidae	Simpsonodus chacensis³ Simpsonodus chacensis³ Cope 1875 even-toed ungulate neotype
Soricomorpha - Nyctitheriidae	Leptacodon catulus n. sp.², "Scenopagus curtidens" = Nyctitherium curtidens Leptacodon catulus n. sp.² Krishtalka 1976 placental AMNH 48173 "Scenopagus curtidens" = Nyctitherium curtidens Matthew 1909 placental

¹Alroy 2002; ²Krishtalka 1976; ³Krishtalka and Stucky 1986; ⁴Novacek 1977; ⁵Robinson 1968; ⁶Sullivan 1979; ⁷Sullivan and Lucas 1988