PBDB Collection

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

unclassified

	Spermatophyta indet.
	"fossil wood"
Chondrichthyes - Myliobatiformes - Potamotrygonidae

	Potamotrygonidae indet.		2 elements
	teeth
Amphibia - Temnospondyli

	Anura indet. (Fischer von Waldheim 1813)
	"non-Pipidae (maxilla fgts + postcranial elements)"
Reptilia - Serpentes

	Serpentes indet. Linnaeus 1758
	"non-booid (vertebrae)"
Reptilia

	Colubroidea indet. Oppel 1811		1 element
	"vertebra"

	Booidea indet. Gray 1825
	"vertebrae"
Reptilia - Testudines

	Pleurodira informal indet. A
	"plate fragments"

	Pleurodira informal indet. B
	"shell fragments"
Reptilia

	Aves indet. Linnaeus 1758		1 element
	claw

	? Balanerodus sp. Langston 1965		2 fragments
	"two tooth fragments"

	Caimaninae indet. Brochu 1999
	"teeth & fragments"

	Gavialoidea indet. Brochu 1997
	"several teeth & fragments"
Reptilia - Sebecidae

	cf. Sebecus sp. Stirton 1953
	"numerous tooth fragments"
Mammalia - Cingulata - Dasypodidae

	Tolypeutinae indet. Gray 1865		2 elements
	scutes
Mammalia - Cingulata - Pachyarmatheriidae

	cf. Neoglyptatelus sp. Carlini et al. 1997		1 element
	scute
Mammalia - Cingulata - Pampatheriidae

	Pampatheriidae indet. Paula Couto 1954		2 elements
	scutes
Mammalia - Astrapotheria - Astrapotheriidae

	Astrapotheriidae indet. Ameghino 1887
	"enamel fragments – vertical decussating"
Mammalia - Notoungulata

	Notoungulata indet. Roth 1903
	"enamel fragments"
Mammalia - Primates

	Anthropoidea indet. Mivart 1864		1 element
	"small (1 pollical phalanx)"
Mammalia - Rodentia

	Caviomorpha indet. (Wood and Patterson 1955)	Boivin et al. 2017
	MUSM 2867–2868

	Octodontoidea indet. Waterhouse 1839	Boivin et al. 2017
	MUSM 2869

	cf. Eosallamys sp. Frailey and Campbell 2004		7 elements
	teeth
	= aff. Eosallamys sp. Frailey and Campbell 2004	Boivin et al. 2017
	MUSM 2858-2860 and 2575
Mammalia - Rodentia - Echimyidae

	Adelphomyinae indet. Patterson and Pascual 1968		1 element
	MUSM 2856
Mammalia - Rodentia

	Octodontoidea informal n. sp. 1		2 elements
	upper molars
	= Loretomys minutus n. gen., n. sp. Boivin et al. 2017	Boivin et al. 2017
	MUSM 2854 - holotype; hypodigm: MUSM 2855

	Caviomorpha informal n. sp. 3		11 elements
	"Family indet., new genus and new species (11 teeth)"
	= Chambiramys shipiborum n. sp. Boivin et al. 2017	Boivin et al. 2017
	MUSM 2849 - type; hypodigm: MUSM 2843–2853
Mammalia - Rodentia - Erethizontidae

	Erethizontidae informal n. sp. 2		8 elements
	teeth
	= Palaeosteiromys amazonensis n. gen., n. sp. Boivin et al. 2017	Boivin et al. 2017
	MUSM 2865 - holotype; referred material: MUSM 2861-2864 and 2866
Mammalia - Rodentia

	Caviomorpha informal n. sp. 4		1 element
	"Chinchilloidea/Cavioidea?, new genus and new species (1 M2)"
	= Ucayalimys crassidens n. gen., n. sp. Boivin et al. 2017	Boivin et al. 2017
	MUSM 2857 - holotype
Mammalia - Panameriungulata

	? Litopterna indet. Ameghino 1889
	"enamel fragments"
Mammalia - Chiroptera

	? Rhinolophoidea indet.
	"upper molar plus upper and lower canines"
Mammalia - Chiroptera - Emballonuridae

	Emballonuridae indet. Dobson 1875		2 elements
	"lower teeth"
Mammalia - Chiroptera

	Vespertilionoidea indet.		1 element
	"small (fragmentary lower tooth)"
Mammalia - Microbiotheria

	Microbiotheria indet. Ameghino 1899		2 fragments
	"lower molar fragments"
Mammalia - Paucituberculata - Abderitidae

	Abderites sp. Ameghino 1887		1 element
	left M2

	cf. Abderites indet. Ameghino 1887		1 element
	left M2
Mammalia - Paucituberculata - Palaeothentidae

	? Palaeothentidae indet. Sinclair 1906		1 element
	lower molar
Mammalia - Herpetotheriidae

	? Herpetotheriidae indet. Trouessart 1879		1 element
	"large (?M1)"
Actinopterygii

	Actinopterygii indet. Cope 1887
	"isolated teeth and spines"
Actinopteri - Cichliformes - Cichlidae

	Cichlidae indet. Heckel 1840
	"maxilla/dentary"
Actinopteri - Characiformes

	Characiformes informal hook-like teeth

	Characiformes informal pad-like teeth
Actinopteri - Characiformes - Erythrinidae

	? Erythrinidae indet.
Actinopteri - Characiformes - Anostomidae

	Leporinus sp. Lundberg 1997
	ca. 520 teeth
Actinopteri - Characiformes - Cynodontidae

	cf. Hydrolycus sp. Lundberg 1997
	ca. 100 teeth
Actinopteri - Siluriformes - Loricariidae

	Loricariidae indet. Gill 1872
	spines
Actinopteri - Siluriformes - Pimelodidae

	Pimelodidae indet. Eigenmann and Eigenmann 1918
	spines
unclassified

	cf. Astyanax sp.

	Serrasalminae informal pacu-like
	ca. 300 teeth

	Serrasalminae informal piranha-like
	ca. 300 teeth
Malacostraca - Decapoda - Trichodactylidae

	Trichodactylidae indet. Milne-Edwards 1853
see common names

Geography

Country:	Peru	State/province:	Loreto
Coordinates:	7.3° South, 74.9° West (view map)
Paleocoordinates:	6.8° South, 67.5° West (Wright 2013)
Basis of coordinate:	stated in text
Geographic resolution:	small collection

Time

Period:	Paleogene	Epoch:	Oligocene
Stage:	Chattian	10 m.y. bin:	Cenozoic 4
Key time interval:	Late Oligocene
Age range of interval:	27.3 - 23.04 m.y. ago

Stratigraphy

Formation:	Chambira	Member:	base
Stratigraphic resolution:	bed
Stratigraphy comments: 30 m above the base of the Chambira Formation

Lithology and environment

Primary lithology:	blue claystone
Secondary lithology:	pebbly conglomerate
Includes fossils?	Y
Lithology description: bluish lacustrine clays topping a conglomerate with centimetric pebbles of fluvial origin
Environment:	fluvial-lacustrine indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	mesofossils

Collection methods and comments

Reason for describing collection:

general faunal/floral analysis

Metadata

Also known as:	Contamana; CTA 32
Database number:	176130
Authorizer:	J. Zijlstra, P. Mannion	Enterer:	J. Zijlstra, P. Mannion
Modifier:	P. Mannion	Research group:	vertebrate
Created:	2016-01-29 23:27:14	Last modified:	2025-02-22 15:12:02
Access level:	the public	Released:	2016-01-29 23:27:14
Creative Commons license:	CC0

Reference information

Primary reference:

57830.

P. Antoine, M. A. Abello, S. Adnet, A. J. A. Sierra, P. Baby, G. Billet, M. Boivin, Y. Calderón, A. Candela, J. Chabain, and F. Corfu. 2016. A 60-million-year Cenozoic history of western Amazonian ecosystems in Contamana, eastern Peru. Gondwana Research 31:30-59 [J. Zijlstra/J. Zijlstra/P. Wagner]

Secondary references:

62623

M. Boivin, L. Marivaux, A. M. Candela, M. J. Orliac, F. Pujos, R. Salas-Gismondi, J. V. Tejada-Lara and P.-O. Antoine. 2017. Late Oligocene caviomorph rodents from Contamana, Peruvian Amazonia. Papers in Palaeontology 3(1):69-109 [P. Mannion/P. Mannion]