La Cueva: Santacrucian, Argentina
collected by C. Ameghino

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Gruiformes - Phorusrhacidae
Alvarenga and Holfing 2003
Alvarenga and Holfing 2003
Brontornithidae indet. Moreno and Mercerat 1891
Buffetaut 2016
NHMUK PV A9057, tibiotarsus, originally classified as Callornis giganteus
Alvarenga and Holfing 2003
Phorusrhacos longissimus (Ameghino 1887)
Buffetaut 2016
NHMUK PV A581, tarsometatarsus, originally classified as Callornis giganteus
Reptilia - Anseriformes
Alvarenga and Holfing 2003
Reptilia - Falconidae
Degrange et al. 2012 1 specimen
BMNH-A 602, ulna, femur, tarsometatarsus
Reptilia
Erichosaurus bombimaxila n. sp. Ameghino 1899
Fernicola and Albino 2012 3 specimens
MACN-A 2283a-c
Erichosaurus debilis n. sp. Ameghino 1899
Fernicola and Albino 2012 1 specimen
MACN-A 5807
Erichosaurus diminutus n. gen., n. sp. Ameghino 1899
Fernicola and Albino 2012 1 specimen
MACN-A 2272
Mammalia - Sparassodonta
Borhyaena tuberata Ameghino 1887
Prevosti et al. 2012
MACN-A 6203–6365
Marshall 1981 5 specimens
MACN 9359, dentary p1-2; MACN 9360, mandible m1-4; MACN 9361, maxilla M2-3; MACN 9387, dentary m3-4; MACN 9388, dentary m3
Marshall 1981 1 specimen
MACN-A 8250, dentary m3, holotype
Sipalocyon gracilis Ameghino 1887
Marshall 1981 17 specimens
MACN 9357, C; MACN 9354, dentary p1, p3-m1; MACN 9353, dentary p3-m1; MACN 9358, distal humerus; MACN 9355, maxilla with molar; MACN 9356, maxilla with molar; MACN 5959, partial skull; MACN 5938–5949, upper and lower jaws and postcrania
Marshall 1981 1 specimen
MACN 5963, dentary p2, m1, m3, holotype
Marshall 1981 1 specimen
MACN 5964, dentary p1-m1, holotype
Marshall 1981 1 specimen
MACN 5965, dentary p2-m3, holotype
Mammalia - Microbiotheria - Microbiotheriidae
Marshall 1982 1 specimen
MACN 8471, right maxilla M1-4
Marshall 1982 5 specimens
MACN 10248, edentulous dentary; MACN 8478, dentary m2; MACN 8481, dentary p1-3, m2-4; MACN 8483, dentary p2-m4; MACN 8493, calcaneum
Mammalia - Paucituberculata - Caenolestidae
Stilotherium dissimile n. gen., n. sp. Ameghino 1887
Marshall 1982 9 specimens
MACN 8426, maxilla M2-3; 8427, rostrum with left C-P2 and right P1-2; 8428, dentary m3; 8429, dentary incisor, m2-4; 8431, M1; 8447, dentary m3; 8464, dentary with teeth, neotype; 8465, dentary p3-m4; 8466-8467 [or 8566-8567], left dentary with teeth
Mammalia - Paucituberculata - Pichipilidae
Marshall 1982 4 specimens
MACN 8457, lectotype, dentary p3-m3; 8458, dentary m2-3; 8461, dentary p3-m4; 8462, dentary m2-4
Mammalia - Paucituberculata - Palaeothentidae
Acdestis oweni Ameghino 1887
Bown and Fleagle 1993
Palaeothentes minutus Ameghino 1887
Abello et al. 2012
Abello et al. 2012
Abello et al. 2012
Mammalia - Paucituberculata - Abderitidae
Abello et al. 2012
MACN-A 8248, dentary p3-m3
Mammalia - Mylodontidae
Mylodon sp. Owen 1859
Pascual et al. 2002
Mammalia
Racco et al. 2018
Neotype: MACN-A 6445–6470, collected between 1892–93
Mammalia - Cingulata
Peltephilus nanus Ameghino 1898
Vizcaíno et al. 2012
MACN-A 7958–7959, femur, osteoderms
Mammalia - Cingulata - Dasypodidae
Vizcaíno et al. 2012
MACN-A 7272–7274, skull, mandible, ostederms
Mammalia - Cingulata - Propalaehoplophoridae
Vizcaíno et al. 2012
MACN-A 7693, humerus
Mammalia - Cingulata - Chlamyphoridae
Stenotatus patagonicus (Ameghino 1887)
Vizcaíno et al. 2012
MACN-A 7800, osteoderms; MACN-A 8235, carapace and postcrania
Mammalia - Panameriungulata - Proterotheriidae
MacPhee et al. 2021
MACN P5971
Mammalia - Rodentia - Acaremyidae
Arnal and Vucetich 2015 1 specimen
MACN A 10095, skull
see common names

Geography
Country:Argentina State/province:Santa Cruz
Coordinates: 50.3° South, 69.0° West (view map)
Paleocoordinates:49.7° South, 66.7° West (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:local area
Time
Period: Neogene Epoch: Miocene
Stage: Burdigalian 10 m.y. bin: Cenozoic 5
Key time interval: Santacrucian
Age range of interval: 17.5 - 16.3 m.y. ago
Stratigraphy
Formation:Santa Cruz
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collectors:C. Ameghino
Metadata
Database number:176565
Authorizer:J. Zijlstra, P. Mannion Enterer:J. Zijlstra, G. Varnham, M. Kouvari
Research group:vertebrate
Subset of collection #:27313
Created:2016-02-17 21:04:04 Last modified:2025-02-22 15:12:02
Access level:the public Released:2016-02-17 21:04:04
Creative Commons license:CC0
Reference information

Primary reference:
58167. S. F. Vizcaíno, R. F. Kay, and M. S. Bargo. 2012. Background for a paleoecological study of the Santa Cruz Formation (late Early Miocene) on the Atlantic Coast of Patagonia. In S. F. Vizcaí­no, R. F. Kay, M. S. Bargo (eds.), Early Miocene Paleobiology in Patagonia: High-Latitude Paleocommunities of the Santa Cruz Formation 1-22 [J. Zijlstra/J. Zijlstra/J. Zijlstra]

Secondary references:

58179 M. A. Abello, E. Ortiz-Jaureguizar, and A. M. Candela. 2012. Paleoecology of the Paucituberculata and Microbiotheria (Mammalia, Marsupialia) from the late Early Miocene of Argentina. In S. F. Vizcaíno, R. F. Kay, M. S. Bargo (eds.), Early Miocene Paleobiology in Patagonia: High-Latitude Paleocommunities of the Santa Cruz Formation 156-172 [J. Zijlstra/J. Zijlstra]
35669 H. M. F. Alvarenga and E. Holfing. 2003. Systematic revision of the Phorusrhacidae (Avies: Ralliformes). Papeis Avulsos de Zoologia 43(4):55-91 [M. Uhen/M. Uhen]
58126 M. Arnal and M. Vucetich. 2015. Revision of the fossil rodent Acaremys Ameghino, 1887 (Hystricognathi, Octodontoidea, Acaremyidae) from the Miocene of Patagonia (Argentina) and the description of a new acaremyid. Historical Biology 27(1):42-59 [J. Zijlstra/J. Zijlstra/J. Zijlstra]
73037 T. M. Bown and J. G. Fleagle. 1993. Systematics, Biostratigraphy, and Dental Evolution of the Palaeothentidae, Later Oligocene to Early-Middle Miocene (Deseadan-Santacrucian) Caenolestoid Marsupials of South America. Memoir (The Paleontological Society) 29:1-76 [P. Mannion/G. Varnham]
72951 E. Buffetaut. 2016. A reassessment of the giant birds Liornis floweri Ameghino, 1895 and Callornis giganteus Ameghino, 1895, from the Santacrucian (late Early Miocene) of Argentina. Palaeovertebrata 40(2) [P. Mannion/G. Varnham]
58178 F. J. Degrange, J. I. Noriega, and J. I. Areta. 2012. Diversity and paleobiology of the Santacrucian birds. In S. F. Vizcaíno, R. F. Kay, M. S. Bargo (eds.), Early Miocene Paleobiology in Patagonia: High-Latitude Paleocommunities of the Santa Cruz Formation 138-155 [J. Zijlstra/J. Zijlstra]
58177 J. C. Fernicola and A. Albino. 2012. Amphibians and squamate reptiles from the Santa Cruz Formation (late Early Miocene), Santa Cruz Province, Argentina: paleoenvironmental and paleobiological considerations. In S. F. Vizcaíno, R. F. Kay, M. S. Bargo (eds.), Early Miocene Paleobiology in Patagonia: High-Latitude Paleocommunities of the Santa Cruz Formation 129-137 [J. Zijlstra/J. Zijlstra/J. Zijlstra]
81723 R. D. E. MacPhee, S. Hernández del Pino, A. Kramarz, A. M. Forasiepi, M. Bond and R. B. Sulser. 2021. Cranial morphology and phylogenetic relationships of Trigonostylops wortmani, an Eocene South American native ungulate. Bulletin of the American Museum of Natural History 449(1):1-183 [P. Mannion/G. Varnham]
57760 L. Marshall. 1982. Systematics of the South American marsupial family Microbiotheriidae. Fieldiana Geology 10:1-75 [J. Zijlstra/J. Zijlstra]
58306 L. G. Marshall. 1981. Review of the Hathlyacyninae, an extinct subfamily of South American "dog-like" marsupials. Fieldiana Geology 7:1-120 [J. Zijlstra/J. Zijlstra]
73133 R. Pascual, A. A. Carlini, M. Bond and F. J. Goin. 2002. Mamíferos Cenozoicos. In M. J. Haller (ed.), Geología y Recursos Naturales de Santa Cruz. Relatorio del XV° Congreso Geológico Argentino II-11:1-12 [P. Mannion/G. Varnham]
58202 F. J. Prevosti, A. M. Forasiepi, M. D. Ercoli and G. F. Turazzini. 2012. Paleoecology of the mammalian carnivores (Metatheria, Sparassodonta) of the Santa Cruz Formation (late Early Miocene). In S. F. Vizcaíno, R. F. Kay, M. S. Bargo (eds.), Early Miocene Paleobiology in Patagonia: High-Latitude Paleocommunities of the Santa Cruz Formation 173-193 [J. Zijlstra/J. Zijlstra/J. Zijlstra]
71532 A. Racco, J. C. Fernicola, M. S. Bargo, S. F. Vizcaíno, and G. De Iuliis. 2018. On the type of Schismotherium fractum Ameghino, 1887 (Xenarthra, Folivora, Megatherioidea) from the early Miocene Santa Cruz Formation (Santa Cruz Province, Argentina). Ameghiniana 55(1):117-125 [P. Mannion/M. Kouvari]
58206 S. F. Vizcaíno, J. C. Fernicola, and M. S. Bargo. 2012. Paleobiology of Santacrucian glyptodonts and armadillos (Xenarthra, Cingulata). In S. F. Vizcaí­no, R. F. Kay, M. S. Bargo (eds.), Early Miocene Paleobiology in Patagonia: High-Latitude Paleocommunities of the Santa Cruz Formation 194-215 [J. Zijlstra/J. Zijlstra/J. Zijlstra]