Also known as: SMU locality 20
Geographic location: 250 yd NE of U. S. Highway 81, 3 mi NW of Decatur, Wise County, Texas
Stratigraphic unit: Paluxy Fm., Trinity Group
| Species | Old identification | Reference | Comments | |
| Astroconodon denisoni | Triconodonta indet. | Jacobs and Winkler 1998 | ||
| Paracimexomys sp. | Multituberculata indet. | Krause et al. 1990 | ||
| Kermackia texana type | ||||
| Trinititherium slaughteri type | Butler 1978 | |||
| Slaughteria eruptens type | Butler 1978 | |||
| Holoclemensia texana type | see Slaughter 1968 | |||
| Pappotherium pattersoni type | see Slaughter 1965 |