TABLE 1. Composition of the KUMIP Spence Shale collection by specimen count.
| Taxa Group | Specimen Count | Percentage of total |
| Echinoderms | 2141 | 38.30% |
| Trilobites & agnostids | 1848 | 33.06% |
| Hyoliths | 671 | 12.00% |
| Brachiopods | 342 | 6.12% |
| Problematica (Eldonia, Banffia, Siphusauctum, Armilimax) | 166 | 2.97% |
| Soft-bodied arthropods | 115 | 2.06% |
| Hemichordata | 82 | 1.47% |
| Indeterminate | 53 | 0.95% |
| Scalidophorans | 47 | 0.84% |
| Lobopodians | 37 | 0.66% |
| Algae & cyanobacteria | 37 | 0.66% |
| Molluscs (Latouchella, Scenella, and Wiwaxia) | 32 | 0.57% |
| Porifera | 19 | 0.34% |
| Total | 5590 | 100% |
TABLE 2. Breakdown of Spence Shale collection by locality.
| Locality | Number of specimens | Percentage (%) of total specimens per locality | Number of biomineralized specimens | Number of soft-bodied specimens | Percentage (%) of biomineralized specimens per locality |
| Antimony Canyon | 2386 | 42.68 | 2314 | 72 | 96.98 |
| Wellsville Mountains | 848 | 15.17 | 790 | 58 | 93.16 |
| Miners Hollow | 672 | 12.02 | 277 | 395 | 41.22 |
| Oneida Narrows | 635 | 11.36 | 629 | 6 | 99.06 |
| High Creek | 494 | 8.84 | 482 | 12 | 97.57 |
| Spence Gulch | 416 | 7.44 | 411 | 5 | 98.80 |
| Emigration Canyon | 57 | 1.02 | 57 | 0 | 100.00 |
| Cataract Canyon | 38 | 0.68 | 20 | 18 | 52.63 |
| Hansen Canyon | 19 | 0.34 | 12 | 7 | 63.16 |
| Utah | 6 | 0.11 | 1 | 5 | 16.67 |
| Two Mile Canyon | 6 | 0.11 | 6 | 0 | 100.00 |
| Calls Fort | 3 | 0.05 | 1 | 2 | 33.33 |
| Promontory Mountains | 3 | 0.05 | 3 | 0 | 100.00 |
| Donation Canyon | 2 | 0.04 | 0 | 2 | 0.00 |
| Unrecorded | 5 | 0.09 | 4 | 1 | 80.00 |
| Total | 5590 | 5007 | 583 |
