Table 1.
Observations of impressions identified from AZ22, MT25, and MK36 sherds, including observation from surface impressions (SEM) and microCT (CT). For images from CTscans see OSM Images
| Site name | Sherd no. | Method | Involucre w/ torn peduncle | Involucre w/ smooth base | Involucre base w/bristles (indet) | Bristle(s) | Paired spikelets | Spikelet | Lemma/palea frag. | Spikelet: Echinochloa (wild) in husk | Spikelet: cf. Panicum sp. | Spikelet Sorghum sp. (wild) | Other poaceae | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| AZ22 | 1 | SEM | 1 | |||||||||||
| AZ22 | 3 | SEM | Culm node | |||||||||||
| AZ22 | 11 | SEM | 1 | 1 | 4 | |||||||||
| AZ22 | 27 | SEM | 2 | 1 | 15 | 1 | ||||||||
| AZ22 | 27 | ct | 30 | 100s | 15 | All with smooth involucre with single spikelet | ||||||||
| AZ22 | 117 | SEM | 10 | |||||||||||
| AZ22 | 123 | SEM | 5 | |||||||||||
| AZ22 | 184 | SEM | 1 | |||||||||||
| AZ22 | 187 | SEM | 1 | |||||||||||
| AZ22 | 192 | SEM | 1 indeterminate grain | |||||||||||
| AZ22 | 12/13 | SEM | 1 | 2 | 7 | 2 | Possible wild type involucre(?), with solitary spikelet | |||||||
| MT25 | 140 | SEM | 2 | 1 | ||||||||||
| MT25 | 175 | SEM | 2 | 1 | Sorghum spikelet 2.4 mm wide | |||||||||
| MK36 | 276 | ct | 2 | 1 | 1 | 3 | 2 | Ripped involucre w/ paired spikelet in same impression; smooth abscission scar involucre w/ paired spikelet in same impression | ||||||
| MK36 | 295 | ct | 2 | |||||||||||
| MK36 | 304 | ct | 1 | |||||||||||
| MK36 | 369 | ct | 1 | |||||||||||
| MK36 | 439 | ct | 1 | |||||||||||
| MK36 | 460 | ct | No inclusions | |||||||||||
| MK36 | 543 | ct | 1 | 1 | ||||||||||
| MK36 | 587 | ct | No inclusions | |||||||||||
| MK36 | 728 | ct | 1 | |||||||||||
| MK36 | 1237 | ct | 2 | 1 | 1 | 3 | Solitary spikelet in involucre with torn peduncle | |||||||
| AZ22 | totals | 0 | 33 | 3 | 27 | 0 | 32 | 2 | 0 | 1 | ||||
| MT25 | totals | 0 | 0 | 1 | 4 | 0 | 1 | 0 | 0 | 0 | ||||
| MK36 | totals | 4 | 2 | 2 | 4 | 3 | 7 | 1 | 1 | 0 |