| Order | Type | Group | Form-ati | Member | Description | Upper | Lower | Basin |
| By No. | on | Age | Age |
| 1543.0 | SED | HUMB | PIPE | ISCS | Intra-Scott Shale | JO | MOFI |
| 1544.0 | LSCS | Lower Scott Sandstone Unit |
| 1545.0 | PISH | Piper Shale Member | JD |
| 1546.0 | PISI | Piper Silt | JV |
| 1547.0 | DELB | Delta B (Piper) |
| 1548.0 | DELC | Delta C (Piper) | JD |
| 1549.0 | DELD | Delta D (Piper) |
| 1550.0 | PISA | Piper Sand Member | JO | JD |
| 1551.0 | PIMS | Piper Mid Shale |
| 1552.0 | PIBS | Piper Basal Shale |
| 1553.0 | PBSD | Piper B Sand Member |
| 1554.0 | PBSH | Piper B Shale Member |
| 1555.0 | PCSD | Piper C Sand Member |
| 1556.0 | PDSD | Piper D Sand |
| 1557.0 | PDSH | Piper D Shale |
| 1558.0 | PESD | Piper E Sand |
| 1559.0 | PESH | Piper E Shale |
| 1560.0 | PF1S | Piper F1 Sand |
| 1561.0 | PF2S | Piper F2 Sand |
| 1562.0 | PG1S | Piper G1 Sand |
| 1563.0 | PG2S | Piper G2 Sand |
| 1564.0 | PHSD | Piper H Sand |
| 1565.0 | PIPI | Piper I Shale |
| 1566.0 | SGIA | Sgiath Sand |
| 1567.0 | PIP4 | Piper Unit 4 | JD | SONS |
| 1568.0 | PI2B | Piper Formation Unit 2B | MOFI |
| 1569.0 | PI2A | Piper Formation Unit 2A |
| 1570.0 | PIP1 | Piper Formation Unit 1 |
| 1571.0 | PIMU | Piper Marine Unit | J |
| 1572.0 | PIPU | Piper Paralic Unit |
| 1573.0 | PICU | Piper Coaly Unit |
| 1574.0 | PIPA | Piper A Unit | JO | JD |
| 1575.0 | PIPB | Piper Formation 'B' Unit | JD | JO |
| 1576.0 | PIPC | Piper Formation 'C' Unit |
| 1577.0 | PIPD | Piper Formation 'D' Unit |
| 1578.0 | PFEQ | Piper Formation Equivalent | CNSB |
| 1579.0 | PISF | Piper Shale Formation | MOFI |
| 1580.0 | SGIF | Sgiath Formation | JO |
| 1581.0 | GORS | Gorse Member |
| 1582.0 | STRO | Stroma Member |
| 1583.0 | SGIJ | J Sand |
| 1584.0 | SLTR | Saltire Member |
| 1585.0 | SGSA | Sand Unit |
| 1586.0 | SGSU | Shale Unit |
| 1587.0 | SGUP | Upper Sgiath | J |
| 1588.0 | SGLW | Lower Sgiath | JO |
| 1589.0 | SKNM | Skene Member |
| 1590.0 | SMSH | Sgiath M Shale |
| 1591.0 | SM2S | Sgiath M2 Sand |
| 1592.0 | SGIC | Sgiath Coaly Unit | CNSB |
| 1593.0 | SGIU | Marine Unit | MOFI |
| 1594.0 | SGIP | Paralic Unit |
| 1595.0 | SGIL | Sgiath L Sand | SONS |
| 1596.0 | SGUS | Upper Main Sandstone | JD | MOFI |
| 1597.0 | SGIM | Intra Main Shale |
| 1598.0 | SGLS | Lower Main Sandstone |
| 1599.0 | SGSH | Lower Shale |
| 1600.0 | SGBS | Basal Sandstone |
| 1601.0 | BALT | Balintore | JO | HAPL EORB GRSP |
| 1602.0 | ARLI | Ardassie Limestone | INMF |
| 1603.0 | PARS | Port-on-Righ Siltstone Member | JC | JO |
| 1604.0 | BARN | Brora Arenaceous | HAPL EORB GRSP |
| 1605.0 | BARG | Brora Argillaceous |
| Page 26 of 60 | 07/07/2004 |