| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: 4 tracks are reported: Holotype BYU B20 and Paratypes: BYU-ACC 87.4.17, SMM P66.6.1 and SMM P66.6.10 |
| Taxonomic list comments: Feduccia (1978, 1980) attributed the tracks of the holotype to the Eocene shorebird Presbyornis. |