PBDB Collection

Itaboraí snake collections: Late Paleocene - Early Eocene, Brazil

List of taxa

Where & when

Geology

Taphonomy & methods

Metadata & references

Taxonomic list

Reptilia - Madtsoiidae

	Madtsoia camposi n. sp. Rage 1998		217 specimens
	DGM 1311-R (holotype), one mid-trunk vertebra; Referred material: 1 palatine (DGM 13l3a-R), 1 maxilla (DGM 13l3b-R), 1 dentary (DGM 1313c-R), 177 vertebrae, complete or identifiable fragments (DGM 1310aR/ 1310i-R, DGM 1314-R, DGM 1315-R, DGM 1316a-R, 1316b-R, DGM 1317a-R, 1317b-R, DGM 1318a-R, DGM 1319-R, DGM 1320a-R, DGM 1320b-R), 36 ribs (DGM 1312a-R, DGM 1312b-R, DGM 1316c-R, DGM 1317c-R, DGM 1317d-R, DGM 1318b-R), (l31Oa-R/13lOi-R, 1315-R, 1320a-R, and 1320b-R.
unclassified

	Coniophis cf. precedens Marsh 1892		1 specimen
	DGM 1322-R, one posterior trunk vertebra
	= Alethinophidia indet.	Head 2020
Reptilia

	Paulacoutophis perplexus n. gen., n. sp. Rage 2008	Rage 2008
	DGM 1367-R - holotype (mid-trunk vertebra); referred material: ten trunk vertebrae (DGM 1368-R to 1372-R; DGM 1373a, b-R; DGM 1374a, b, c-R) and one cloacal or anterior caudal vertebra (DGM 1375-R)
Reptilia - Boidae

	Boidae indet. Gray 1825	Rage 2001	2 specimens
	two dentaries (DGM 1355-R: one rather complete dentary; DGM 1356-R: anteriormost part of a dentary)

	Paraungaliophis pricei n. gen., n. sp. Rage 2008	Rage 2008
	DGM 1365-R - holotype (mid-trunk vertebra); referred material: DGM 1366-R (posterior trunk vertebra)

	cf. Paraungaliophis pricei Rage 2008	Rage 2008
	DGM 1377-R - posterior (posteriormost?) trunk vertebra

	Boinae informal sp. A	Rage 2001	1 specimen
	one mid-trunk vertebra (DGM 1353-R)

	Boinae informal sp. B	Rage 2001	1 specimen
	one mid-trunk vertebra (DGM 1954-R)

	cf. Corallus sp. Daudin 1803	Rage 2001	15 specimens
	15 trunk vertebrae (DOM 1336a-R: 7 vertebrae; DOM 1336b-R: 1 vertebra; DOM 1336c-R: 4 vertebrae; DOM 1336d-R: 3 vertebrae)

	Corallus priscus n. sp. Rage 2001	Rage 2001	38 specimens
	DGM 1332-R (holotype), one mid-trunk vertebra; referred material consists of 37 trunk vertebrae (DGM 1333-R: 1 vertebra; DGM 1334a-R: 2 vertebrae; DGM 1334b-R: 9 vertebrae; DGM 1334c-R: 1 vertebra; DGM 1335a-R: 1 vertebra; DGM 1335b-R: 1 vertebra; DGM 1335c-R: 1 vertebra; DGM 1335d-R: 21 vertebrae)

	Waincophis sp. Albino 1987	Rage 2001	58 specimens
	58 trunk vertebrae (DGM 1348a-R: 14 vertebrae; DGM 1348b-R: 3 vertebrae; DGM 1348c-R: 10 vertebrae; DGM 1349a-R: 4 vertebrae; DGM 1349b-R: 2 vertebrae; DGM 1349c-R: 5 vertebrae; DGM 1349d-R: 1 vertebra; DGM 1349e-R: 1 vertebra; DGM 1349f-R: 18 vertebrae)

	cf. Waincophis sp. Albino 1987	Rage 2001	36 specimens
	2 dentaries (DGM 1350-R and DGM 135 1-R); 34 trunk vertebrae (DGM 1352a-R: 2 vertebrae; DGM 1352b-R: 5 vertebrae; DGM 1352c-R: 1 vertebra; DGM 1352d-R: 3 vertebrae; DGM 1352e-R: 18 vertebrae; DGM 1352f-R: 5 vertebrae

	Waincophis pressulus n. sp. Rage 2001	Rage 2001	35 specimens
	DGM 1337-R, one mid-trunk vertebra; referred material consists of 34 trunk vertebrae (DGM 1338-R: 1 vertebra; DGM 1339-R: 1 vertebra; DGM 1340a-R: 3 vertebrae; DGM 1340b-R: 4 vertebrae; DGM 1340c-R: 4 vertebrae; DGM 1341a-R: 2 articulated vertebrae; DGM 1341b-R: 1 vertebra; DGM 1341c-R: 4 vellebrae; DGM 1341d-R: 13 vertebrae; DGM 1341e-R: 1 vertebra)

	Waincophis cf. pressulus Rage 2001	Rage 2001	14 specimens
	14 trunk vertebrae (DGM 1342a-R: 7 vertebrae; DGM 1342b-R: 2 vertebrae; DGM 1342~-R: 1 vertebra; DGM 1342d-R: 3 vertebrae; DGM 1342e-R: 1 vertebra)

	Waincophis cameratus n. sp. Rage 2001	Rage 2001	49 specimens
	DGM 1343-R (holotype), one mid-trunk vertebra; referred material consists of 48 trunk vertebrae (DGM 1344-R: 1 vertebra; DGM 1345a-R: 3 vertebrae; DGM 1345b-R: 5 vertebrae; DGM 1345c-R: 1 vertebra; DGM 1346a-R: 21 vertebrae; DGM 1346b-R: 17 vertebrae)

	Waincophis cf. cameratus Rage 2001	Rage 2001	5 specimens
	5 trunk vertebrae (DGM 1347a-R: 3 vertebrae; DGM 1347b-R: 1 vertebra; DGM 1347c-R: 1 vertebra)

	cf. Hechtophis sp. Rage 2001	Rage 2001	35 specimens
	35 trunk vertebrae (DOM 1331a-R: 3 vertebrae; DOM 1331b-R: 11 vertebrae; DOM 1331c-R: 11 vertebrae; DOM 1331d-R: 6 vertebrae; DOM 1331e-R: 4 vertebrae)

	Hechtophis austrinus n. gen., n. sp. Rage 2001	Rage 2001	72 specimens
	DGM 1326-R (holotype), one mid-trunk vertebra; referred material consists of 71 trunk vertebrae (DOM 1327-R: 1 vertebra; DOM 1328-R: 1 vertebra; DOM 1329a-R: 11 vertebrae; DOM 1329b-R: 1 vertebra; DOM 1329c-R: 1 vertebra; DOM 1329d-R: 10 vertebrae; DOM 1329e-R: 13 vertebrae; DOM 1330a-R: 7 116 vertebrae; DGM 1330b-R: 7 vertebrae; DGM 1330c-R: 3 vertebrae; DGM 1330d-R: 2 vertebrae; DGM 1330e-R: 14 vertebrae)
Reptilia - Russellophiidae

	? Russellophiidae indet. (Rage 1978)	Rage 2008
	DGM 1376-R (posteriormost trunk vertebra)
Reptilia

	Itaboraiophis depressus n. gen., n. sp. Rage 2008	Rage 2008
	DGM 1357-R - holotype (mid-trunk vertebra); referred material: ten trunk vertebrae (DGM 1358-R to 1362-R; DGM 1363a, b-R; DGM 1364a, b, c-R)

	Hoffstetterella brasiliensis n. gen., n. sp. Rage 1998		8 specimens
	DGM 1323-R (holotype) one mid-trunk vertebra; DGM 1324a-R, DGM 1324b-R, DGM 1325-R, seven vertebrae

	cf. Hoffstetterella brasiliensis Rage 1998		1 specimen
	DGM 1321-R, one vertebra
see common names

Geography

Country:	Brazil	State/province:	Rio de Janeiro	County:	Cabucu
Coordinates:	22.1° South, 41.6° West (view map)
Paleocoordinates:	25.0° South, 30.0° West
Basis of coordinate:	based on political unit
Geographic resolution:	basin

Time

Period:	Paleogene	Epoch:	Paleocene - Eocene
Stage:	Thanetian - Ypresian	10 m.y. bin:	Cenozoic 1 - Cenozoic 2
Key time interval:	Late Paleocene - Early Eocene	Mammal zone:	Itaboraian
Age range of interval:	59.2 - 47.8 m.y. ago

Stratigraphy

Lithology and environment

Primary lithology:	"carbonate"
Lithology description: All snake specimens collected from multiple fissure fills
Environment:	terrestrial indet.

Taphonomy

Modes of preservation:	body
Size of fossils:	macrofossils,mesofossils
Preservation of anatomical detail:	good
Disassociated major elements:	all

Collection methods and comments

Collection methods:	selective quarrying,surface (in situ),chemical,mechanical,survey of museum collection
Collection size:	475 specimens
Reason for describing collection:	taxonomic analysis

Metadata

Database number:	48091
Authorizer:	J. Head, P. Mannion	Enterer:	J. Head, P. Mannion
Modifier:	R. Butler	Research group:	vertebrate
Created:	2005-03-13 09:59:55	Last modified:	2016-01-08 18:45:07
Access level:	the public	Released:	2005-03-13 09:59:55
Creative Commons license:	CC BY

Reference information

Primary reference:

12895.

J.-C. Rage. 1998. Fossil snakes from the Palaeocene of São José de Itaboraí, Brazil. Part I. Madtsoiidae, Aniliidae. Palaeovertebrata 27(3-4):109-144 [J. Head/J. Head/J. Head]

Secondary references:

74641		J. J. Head. 2020. A South American snake lineage from the Eocene Greenhouse of North America and a reappraisal of the fossil record of “anilioid” snakes. Geobios [E. Vlachos/E. Vlachos/P. Mannion]
12871		J.-C. Rage. 2001. Fossil snakes from the Palaeocene of São José de Itaboraí, Brazil. Part II. Boidae. Palaeovertebrata 30(3-4):111-150 [J. Head/J. Head/J. Head]
54397		J.-C. Rage. 2008. Fossil snakes from the Palaeocene of São José de Itaboraí, Brazil. Part III. Ungaliophiinae, booids incertae sedis, and Caenophidia. Summary, update and discussion of the snake fauna from the locality. Palaeovertebrata 36(1-4):37-73 [P. Mannion/P. Mannion]