Buen Formation
Geology
Members: unnamed (12), Lower (2)
Lithologies: not reported (1), "siliciclastic" (11), mudstone (7), "shale" (17), sandstone (18), conglomerate (1), marl (3), grainstone (2), "limestone" (25), slate (1)
Paleoenvironments: marine indet. (6), terrestrial indet. (2), carbonate indet. (3), open shallow subtidal (1), sand shoal (2), reef, buildup or bioherm (25), perireef or subreef (5), deep subtidal indet. (1), offshore ramp (2), offshore shelf (3), transition zone/lower shoreface (8), offshore (7), fluvial indet. (1)
Collections
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Cambrian | Greenland (Peary Land) | (155087 155182) | |
| Early/Lower Cambrian | Greenland | (106059) | |
| Atdabanian | Greenland (Pearyland) | (9917) | |
| Atdabanian | Greenland (Peary Land) | (90574) | |
| Atdabanian - Botomian | Greenland | (121183 121184 121185) | |
| Atdabanian - Caerfai | Greenland | (9780) | |
| Montezuman | Greenland | (8095 233876) | |
| Dyeran | Greenland | (219446 219448 234292) | |
| Dobrotivian - Berounian | Spain (Zaragoza) | (21090) | |
| Berounian - Vinice | Spain (Zaragoza) | (21089 166725 166733 166736 166737 196921) | |
| Berounian - Zahorany | Spain (Zaragoza) | (166732) | |
| Berounian | Spain (Zaragoza) | (166728 186255 196901) | |
| Ashgill | Spain (Aragon) | (163400) | |
| Late/Upper Triassic | Uruguay (Cerro Largo) | (86401) | |
| Late/Upper Tithonian | Colombia (Meta) | (191976 191958 191971 191974) | |
| Turonian - Coniacian | Argentina | (90736) | |
| Santonian - Early/Lower Campanian | Argentina | (90737 90738) | |
| Langhian | Venezuela (Falcon) | (136469) | |
| Early/Lower Pliocene - Late/Upper Pliocene | Costa Rica | (71380 71381 71382 71383 71384 71385 71386 71387 71388 71389 71390 71391 71392 71393 71394 71395 71396 71397 71398 71409 71410 124265 124266 124267 124268 124269 124270 124271 198246 198247) | |
| Middle Pleistocene | Argentina (Buenos Aires) | (113413 223987) |