There never WAS such a theory...popular science myth, particularly the "dinosaurs" garbage.
The generally accepted process of petroleum formation is from dead microscopic marine organisms. I have no idea how the dinosaur business got started. Oil doesn't form from land organisms at all.
COAL is formed from decaying "jungles"....or any sort of plant life that dies and then is buried under high pressure. And that is beyond dispute...there's a spectrum from Anthracite to Bituminous Coal to Lignite (brown coal) to Peat, in terms of heat and pressure in coal formation, and as you get to Lignite and Peat you can easily find the remains of the plants forming the coal.
Seven verses containing 'bottomless pit':
Revelation 9:1 And the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit.
Revelation 9:2 And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit.
Revelation 9:11 And they had a king over them, which is the angel of the bottomless pit, whose name in the Hebrew tongue is Abaddon, but in the Greek tongue hath his name Apollyon.
Revelation 11:7 And when they shall have finished their testimony, the beast that ascendeth out of the bottomless pit shall make war against them, and shall overcome them, and kill them.
Revelation 17:8 The beast that thou sawest was, and is not; and shall ascend out of the bottomless pit, and go into perdition: and they that dwell on the earth shall wonder, whose names were not written in the book of life from the foundation of the world, when they behold the beast that was, and is not, and yet is.
Revelation 20:1 And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.
Revelation 20:3 And cast him into the bottomless pit, and shut him up, and set a seal upon him, that he should deceive the nations no more, till the thousand years should be fulfilled: and after that he must be loosed a little season.
12 abussos {ab'-us-sos}
from 1 (as a negative particle) and a variation of 1037;
TDNT - 1:9,2; n f
AV - bottomless pit 5, deep 2, bottomless 2; 9
1) bottomless
2) unbounded
3) the abyss
3a) the pit
3b) the immeasurable depth
3c) of Orcus, a very deep gulf or chasm in the lowest parts
of the earth used as the common receptacle of the dead and
especially as the abode of demons
***
5421 phrear {freh'-ar}
of uncertain derivation;; n n
AV - pit 5, well 2; 7
1) a well
2) the pit of the abyss (because the nether world is thought to increase
in size the further it extends from the surface of the earth and so
resemble a cistern, the orifice of which is narrow)