1) Incumbent 2) Overlying 3) Superimposed 4) Superincumbent 1) Incumbent 2) Overlying 3) Superincumbent 
lying above
• (a.) Situated immediately above; as, superjacent rocks.
(soo″pәr-ja´sәnt) located just above.
Su`per·ja'cent adjective [ Latin superjacens , present participle of superjacere ; super above + jacere to lie.] Situated immediately above; as, superjacent rocks. 
Superjacent: Lying just above or upon. Overlying. The opposite of superjacent is subjacent. Other related terms include adjacent and circumjacent. From super-, above, over + the Latin jacere, to lie = to lie above.
[adj] - lying immediately above or on something else
superjacent 1. Lying immediately above; overlying. 2. Resting or lying immediately above or on something else.
adjective lying immediately above or on something else
lying above or upon something else.