PBDB Collection

Laguna Umayo, Chulpas level: Thanetian - Ypresian, Peru
collected 1993

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Mammalia

	? Caroloameghiniinae indet. (Ameghino 1901)	Crochet and Sigé 1993
	CHU 35 (right M4)
Mammalia - Didelphimorphia - Didelphidae

	Didelphidae informal sp. 1	Crochet and Sigé 1993
	CHU 17-19 and 26 (teeth)

	Didelphidae informal sp. 2	Crochet and Sigé 1993
	CHU 21 (tooth)

	Didelphidae informal sp. 3	Crochet and Sigé 1993
	CHU 14-16 (teeth)

	Didelphidae indet. Gray 1821	Crochet and Sigé 1993
	CHU 21,22 and 24 (teeth)
Mammalia

	aff. Chulpasia indet. Crochet and Sigé 1993

	Chulpasia mattaueri n. gen., n. sp. Crochet and Sigé 1993	Crochet and Sigé 1993
	CHU 30 - holotype (LM1); referred material: CHU 12 (RM2 or 3), CHU 1 (LM1), CHU 2 (LM2 or 3), and CHU 5-11 (fragmented teeth)
Mammalia - Sillustaniidae

	Caenolestoidea indet. ()	Crochet and Sigé 1993
	= Sillustania quechuense n. gen., n. sp. Crochet and Sigé 1996	Sigé et al. 2004
	CHU 33 - holotype (tooth); referred specimen: CHU 34 (tooth)
Mammalia - Notoungulata

	Notoungulata informal sp. 1	Crochet and Sigé 1993
	CHU 31 and 32 (teeth)

	Notoungulata informal sp. 2	Crochet and Sigé 1993
	CHU 45, 46, 53 and 54 (teeth)

	Notoungulata informal sp. 3	Crochet and Sigé 1993
	CHU 61 (tooth)
Mammalia - Proteutheria

	Proteutheria indet. Romer 1966	Crochet and Sigé 1993
	CHU 39, 40, 42 and 43 (teeth)
Reptilia - Crocodilia

	Crocodilia indet. Owen 1842
Dipnomorpha - Lepidosirenidae

	Lepidosiren cf. paradoxa Fitzinger 1837
Actinopteri - Albuliformes - Albulidae

	cf. Albulidae indet. Bleeker 1859
Actinopteri - Characiformes - Characidae

	Tetragonopterinae indet. Lundberg 1997
unclassified

	? Porocharacea indet.

	Serrasalminae indet.
see common names

Country:	Peru	State/province:	Puno
Coordinates:	15.7° South, 70.2° West (view map)
Paleocoordinates:	17.5° South, 54.9° West (Wright 2013)
Basis of coordinate:	based on nearby landmark
Altitude:	3917 meters
Geographic resolution:	outcrop

Period:	Paleogene	Epoch:	Paleocene - Eocene
Stage:	Thanetian - Ypresian	10 m.y. bin:	Cenozoic 1 - Cenozoic 2
Key time interval:	Thanetian - Ypresian
Age range of interval:	59.24 - 48.07 m.y. ago

Geological group:	Puno	Formation:	Muñani
Stratigraphic resolution:	group of beds
Stratigraphy comments: Lower Muñani Formation. Likely correlative to Chron 26r (early Late Paleocene) or Chron 24r (latest Paleocene–earliest Eocene), or, less likely, to Chron 29r (latest Cretaceous–earliest Paleocene). Correlation to Chron 24r is favored (Sige et al. 2004). Chron 24r (Thanetian– Ypresian) (Sigé et al. 2004). Originally attributed to Vilquechico Formation (Maastrichtian-Danian) on paleobotanical evidence (charophytes).

Primary lithology:	"cross stratification" argillaceous,calcareous conglomerate
Secondary lithology:	lithified sandstone
Includes fossils?	Y
Lithology description: "The fossils are found in thin banks of heterogeneous sediment, a sort of microconglomerate formed from fine, irregular, more or less rounded calcareous nodules, and clayey and partially calcitic cement. Within these beds, some last thin clay layers preserve dessication marks. This matrix is often superficially altered and friable, more compact in-depth. The series includes several beds of this nature, which alternate with thicker deposits of red clays, grayish-red marls, and banks of compact sandstone. Throughout this ensemble, and particularly in the fossiliferous levels, cross-bedded stratifications abound. At the base, the series rests by soft layers (clays?) on an ensemble where compact sandstones dominate in thick banks. At the summit, they terminate by a strong thickness of soft beds, and pass to an essentially detritic ensemble, beginning with very ferruginous sandstones." (Translation by M. Carrano)
Environment:	lacustrine indet.

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils
Fragmentation:	frequent

Collection methods:	field collection
Reason for describing collection:	general faunal/floral analysis
Collection dates:	1993 onwards

Also known as:	LURMU
Database number:	132938
Authorizer:	P. Mannion	Enterer:	P. Mannion
Modifier:	M. Kouvari	Research group:	vertebrate
Created:	2012-08-29 21:30:57	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	2012-08-29 21:30:57
Creative Commons license:	CC0

56313		L. Chornogubsky and F. J. Goin. 2015. A review of the molar morphology and phylogenetic affinities of Sillustania quechuense (Metatheria, Polydolopimorphia, Sillustaniidae), from the early Paleogene of Laguna Umayo, southeastern Peru. Journal of Vertebrate Paleontology 35:e983238:1-5 [P. Mannion/P. Mannion]
46227		J.-Y. Crochet and B. Sigé. 1993. Les mammifères de Chulpas (Formation Umayo, Transition Crétacé-Tertiaire, Pérou): données préliminaires. Documents des Laboratoires de Géologie de Lyon 125:97-107 [P. Mannion/P. Mannion]
44144		B. Sigé, M. Archer, J.-Y. Crochet, H. Godthelp, S. Hand and R. Beck. 2009. Chulpasia and Thylacotinga, late Paleocene-earliest Eocene trans-Antarctic Gondwanan bunodont marsupials: New data from Australia. Geobios 42:813-823 [P. Mannion/P. Mannion]