Collocations for remains - noun

abundant, considerable, extensive, substantial
abundant remains of marine algae
the extensive remains of an Aztec pyramid

impressive
fragmentary
visible
existing, surviving
ancient, prehistoric
Greek, Roman, etc.
battered, mangled, shattered, tattered
the mangled remains of the bomber's van

burned, burned-out, charred, cremated, smouldering/smoldering
physical
earthly, human, mortal
This tomb holds the mortal remains of a great pharaoh.

animal, archaeological, fossil, fossilized, organic, plant, skeletal

discover, find, locate, reveal, uncover, unearth
While excavating the site, workers unearthed the remains of several dinosaurs.

identify
The remains have been identified as those of Carl Rider.

excavate, exhume, recover, remove
They are excavating the remains of an Iron Age settlement.
Marie Curie's remains were exhumed and interred in the Pantheon.

examine, study
bury, inter (formal)
preserve
dump, scatter, throw
burn
feed on
Gulls often feed on the remains of seal kills.

survive
Considerable remains survive of the great city walls.

lie
Her remains lie in an unmarked grave.

date from …
The burned-out remains date from the 19th century.

among the remains, in the remains
The body was found among the remains of a burned-out house.