Itaboraí snake collections (Paleocene to of Brazil)

Where: Rio de Janeiro, Brazil (22.1° S, 41.6° W: paleocoordinates 25.0° S, 30.0° W)

• coordinate based on political unit

• basin-level geographic resolution

When: Itaboraian mammal zone, Late/Upper Paleocene to Late/Upper Paleocene (58.7 - 48.6 Ma)

Environment/lithology: terrestrial; carbonate

• All snake specimens collected from multiple fissure fills

Size classes: macrofossils, mesofossils

Collection methods: quarrying, surface (in situ), chemical, mechanical,

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 48091: authorized by Jason Head, entered by Jason Head on 13.03.2005, edited by Philip Mannion

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Squamata - Boidae
Boidae indet.1 Gray 1825 boa
two dentaries (DGM 1355-R: one rather complete dentary; DGM 1356-R: anteriormost part of a dentary)
Paraungaliophis pricei n. gen. n. sp.2 Rage 2008 dwarf boa
DGM 1365-R - holotype (mid-trunk vertebra); referred material: DGM 1366-R (posterior trunk vertebra)
cf. Paraungaliophis pricei2 Rage 2008 dwarf boa
DGM 1377-R - posterior (posteriormost?) trunk vertebra
Boinae " sp. A "1 Gray 1825 boa
one mid-trunk vertebra (DGM 1353-R)
Boinae " sp. B "1 Gray 1825 boa
one mid-trunk vertebra (DGM 1954-R)
Waincophis sp.1 Albino 1987 boa
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.1 Albino 1987 boa
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 cameratus n. sp.1 Rage 2001 boa
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. cameratus1 Rage 2001 boa
5 trunk vertebrae (DGM 1347a-R: 3 vertebrae; DGM 1347b-R: 1 vertebra; DGM 1347c-R: 1 vertebra)
Waincophis pressulus n. sp.1 Rage 2001 boa
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. pressulus1 Rage 2001 boa
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)
cf. Corallus sp.1 Daudin 1803 boa
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.1 Rage 2001 boa
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)
cf. Hechtophis sp.1 Rage 2001 boa
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.1 Rage 2001 boa
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)
 Squamata -
Itaboraiophis depressus n. gen. n. sp.2, Paulacoutophis perplexus n. gen. n. sp.2
Itaboraiophis depressus n. gen. n. sp.2 Rage 2008 snake
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)
Paulacoutophis perplexus n. gen. n. sp.2 Rage 2008 snake
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)
 Squamata - Russellophiidae
? Russellophiidae indet.2 Rage 1978 snake
DGM 1376-R (posteriormost trunk vertebra)
 Squamata -
Hoffstetterella brasiliensis n. gen. n. sp. Rage 1998 snake
DGM 1323-R (holotype) one mid-trunk vertebra; DGM 1324a-R, DGM 1324b-R, DGM 1325-R, seven vertebrae
cf. Hoffstetterella brasiliensis Rage 1998 snake
DGM 1321-R, one vertebra
 Squamata - Madtsoiidae
Madtsoia camposi n. sp. Rage 1998 snake
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.