Geologic Systems Silurian (Upper & Lower)| System | Drawer # | Lithic Type | County | County Exp. # | Cat. # | Heated | Exposure |
|---|
| Silrulian (Upper) | 20 | Stone City Quarry | Jones | JN-D | 447 | | |
| Silurian (Upper) | 20 | Stone City Quarry | Jones | JN-D+ | 447 | + | |
| Silurian (Lower) | 20 | Scotch Grove | Benton | BE-A | 480 | | |
| Silurian (Lower) | 20 | Scotch Grove | Benton | BE-A+ | 480 | + | |
| Silurian (Lower) | 20 | Scotch Grove | Jackson | JK-E | 486 | | |
| Silurian (Lower) | 20 | Scotch Grove | Jackson | JK-E+ | 486 | + | |
| Silurian (Lower) | 20 | Scotch Grove | Jones | JN-A | 196 | | |
| Silurian (Lower) | 20 | Scotch Grove | Jones | JN-A+ | 196 | + | R |
| Silurian (Lower) | 20 | Scotch Grove | Jones | JN-B | 290 | | R |
| Silurian (Lower) | 20 | Scotch Grove | Jones | JN-B+ | 290 | + | R |
| Silurian (Lower) | 20 | Scotch Grove | Jones | JN-G | 507 | | |
| Silurian (Lower) | 20 | Scotch Grove | Jones | JN-G+ | 507 | + | |
| Silurian (Lower) | 20 | Scotch Grove | Linn | LN-N | 502 | | |
| Silurian (Lower) | 20 | Scotch Grove | Linn | LN-N+ | 502 | + | |
| Silurian (Lower) | 20 | Scotch Grove | Linn | LN-O | 515 | | |
| Silurian (Lower) | 20 | Scotch Grove | Linn | LN-O+ | 515 | + | |
| Silurian (Lower) | 20 | Palasades Kepler | Linn | LN-D | 450 | | |
| Silurian (Lower) | 20 | Palasades Kepler | Linn | LN-D+ | 450 | + | |
| Silurian (Lower) | 20 | Palasades Kepler | Linn | LN-F | 494 | | |
| Silurian (Lower) | 20 | Palasades Kepler | Linn | LN-F+ | 494 | + | |
| Silurian (Lower) | 20 | Palasades Kepler | Linn | LN-G | 495 | | |
| Silurian (Lower) | 20 | Palasades Kepler | Linn | LN-G+ | 495 | + | |
| Silurian (Lower) | 20 | Buck Creek Quarry | Winneshiek | WH-D | 451 | | |
| Silurian (Lower) | 20 | Buck Creek Quarry | Winneshiek | WH-D + | 451 | + | |
| Silurian (Lower) | 21 | Hopkinton | Clayton | CT-B | 57 | | C |
| Silurian (Lower) | 21 | Hopkinton | Clayton | CT-B+ | 57 | + | C |
| Silurian (Lower) | 21 | Hopkinton | Clayton | CT-F | 66 | | C |
| Silurian (Lower) | 21 | Hopkinton | Clayton | CT-F+ | 66 | + | C |
| Silurian (Lower) | 21 | Hopkinton | Clayton | CT-J | 482 | | |
| Silurian (Lower) | 21 | Hopkinton | Clayton | CT-J+ | 482 | + | |
| Silurian (Lower) | 21 | Hopkinton | Delaware | DW-E | 454 | | C |
| Silurian (Lower) | 21 | Hopkinton | Delaware | DW-E+ | 454 | + | C |
| Silurian (Lower) | 21 | Hopkinton | Delaware | DW-G | 509 | | |
| Silurian (Lower) | 21 | Hopkinton | Delaware | DW-G+ | 509 | + | |
| Silurian (Lower) | 21 | Hopkinton | Delaware | DW-H | 510 | | C |
| Silurian (Lower) | 21 | Hopkinton | Delaware | DW-H+ | 510 | + | C |
| Silurian (Lower) | 21 | Hopkinton | Dubuque | DB-H | 289 | | |
| Silurian (Lower) | 21 | Hopkinton | Dubuque | DB-H+ | 289 | + | |
| Silurian (Lower) | 21 | Hopkinton | Dubuque | DB-I | 291 | | O |
| Silurian (Lower) | 21 | Hopkinton | Dubuque | DB-I+ | 291 | + | O |
| Silurian (Lower) | 21 | Hopkinton | Jackson | JK-B | 288 | | R |
| Silurian (Lower) | 21 | Hopkinton | Jackson | JK-B+ | 288 | + | R |
| Silurian (Lower) | 21 | Hopkinton | Jackson | JK-J | 491 | | |
| Silurian (Lower) | 21 | Hopkinton | Jackson | JK-J+ | 491 | + | |
| Silurian (Lower) | 21 | Blanding | Jones | JN-C | 443 | | Q |
| Silurian (Lower) | 21 | Blanding | Jones | JN-C+ | 443 | + | Q |
| Silurian (Lower) | 21 | Blanding | Jones | JN-F | 492 | | |
| Silurian (Lower) | 21 | Blanding | Jones | JN-F+ | 492 | + | |
| Silurian (Lower) | 22 | Blanding | Clayton | CT-D | 64 | | |
| Silurian (Lower) | 22 | Blanding | Clayton | CT-D+ | 64 | + | Q |
| Silurian (Lower) | 22 | Blanding | Delaware | DW-B | 206 | | Q |
| Silurian (Lower) | 22 | Blanding | Delaware | DW-B+ | 206 | + | Q |
| Silurian (Lower) | 22 | Blanding | Delaware | DW-C | 194 | | C |
| Silurian (Lower) | 22 | Blanding | Delaware | DW-C+ | 194 | + | C |
| Silurian (Lower) | 22 | Blanding | Delaware | DW-F | 508 | | |
| Silurian (Lower) | 22 | Blanding | Delaware | DW-F+ | 508 | + | |
| Silurian (Lower) | 22 | Blanding | Dubuque | DB-A | 11 | | C |
| Silurian (Lower) | 22 | Blanding | Dubuque | DB-A+ | 11 | + | C |
| Silurian (Lower) | 22 | Blanding | Dubuque | DB-F | 119 | | C |
| Silurian (Lower) | 22 | Blanding | Dubuque | DB-F+ | 119 | + | C |
| Silurian (Lower) | 22 | Blanding | Dubuque | DB-G | 179 | | |
| Silurian (Lower) | 22 | Blanding | Dubuque | DB-G+ | 179 | + | |
| Silurian (Lower) | 22 | Blanding | Dubuque | DB-M | 476 | | |
| Silurian (Lower) | 22 | Blanding | Dubuque | DB-M+ | 476 | + | |
| Silurian (Lower) | 22 | Blanding | Fayette | FT-A | 249 | | C |
| Silurian (Lower) | 22 | Blanding | Fayette | FT-A+ | 249 | + | C |
| Silurian (Lower) | 22 | Blanding | Jackson | JK-C | 484 | | |
| Silurian (Lower) | 22 | Blanding | Jackson | JK-C+ | 484 | + | |
| Silurian (Lower) | 22 | Blanding | Jackson | JK-D | 485 | | |
| Silurian (Lower) | 22 | Blanding | Jackson | JK-D+ | 485 | + | |
| Silurian (Lower) | 22 | Blanding | Jackson | JK-F | 487 | | |
| Silurian (Lower) | 22 | Blanding | Jackson | JK-F+ | 487 | + | |
Links:
[1] https://archaeology.uiowa.edu/silurian-upper-lower
[2] https://archaeology.uiowa.edu/lithic-raw-material-assemblage-database
[3] https://archaeology.uiowa.edu/counties-z
[4] https://archaeology.uiowa.edu/geologic-systems
[5] https://archaeology.uiowa.edu/lithic-types
[6] https://archaeology.uiowa.edu/chert-drawers
[7] https://archaeology.uiowa.edu/lithic-raw-material-assemblage-osa
[8] https://archaeology.uiowa.edu/pennsylvanian
[9] https://archaeology.uiowa.edu/mississippian-middle
[10] https://archaeology.uiowa.edu/mississippian-lower
[11] https://archaeology.uiowa.edu/devonian-middle-lower
[12] https://archaeology.uiowa.edu/ordovician-middle-lower