Hoyo Negro, Sac Actun cave system (Pleistocene of Mexico)

Where: Quintana Roo, Mexico (20.3° N, 87.4° W: paleocoordinates 20.3° N, 87.4° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: karst; lithology not reported

Size class: macrofossils

Primary reference: H. G. McDonald, J. C. Chatters, and T. J. Gaudin. 2017. A new genus of megalonychid ground sloth (Mammalia, Xenarthra) from the late Pleistocene of Quintana Roo, Mexico. Journal of Vertebrate Paleontology 37(3):e1307206:1-14 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 212361: authorized by Philip Mannion, entered by Philip Mannion on 12.08.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Proboscidea - Gomphotheriidae
Cuvieronius cf. tropicus
Cuvieronius cf. tropicus Cope 1884 gomphothere
 Perissodactyla - Tapiridae
Tapirus bairdii
Tapirus bairdii Gill 1865 Baird's tapir
 Artiodactyla - Tayassuidae
Tayassuidae indet.
Tayassuidae indet. Palmer 1897 peccary
 Carnivora - Felidae
Smilodon cf. fatalis, Lynx rufus, Puma concolor
Smilodon cf. fatalis Leidy 1868 saber-toothed cat
Lynx rufus Schreber 1777 bobcat
Puma concolor Linnaeus 1771 puma
 Carnivora - Canidae
Protocyon troglodytes
Protocyon troglodytes Lund 1938 canine
 Carnivora - Ursidae
Arctotherium wingei
Arctotherium wingei Ameghino 1902 bear
Originally identified as Tremarctos
 Carnivora - Procyonidae
Nasua narica
Nasua narica Linnaeus 1766 white-nosed coati
 Megatherioidea - Megalonychidae
Nohochichak xibalbahkah n. gen. n. sp.
Nohochichak xibalbahkah n. gen. n. sp. McDonald et al. 2017 edentate
INAH DP5832 - type
 Megatherioidea - Nothrotheriidae
"Nothrotheriops shastensis" = Nothrotherium shastense
"Nothrotheriops shastensis" = Nothrotherium shastense Sinclair 1905 Shasta ground sloth