BUILDUPS
CORALS
MAJOR SKELETAL ELEMENTS
SEA
LEVEL
2nd-order
sequences
CORALS & SKELETAL ALGAEo
08
0c/)W
CHALKS rudists RlJniSTS corals & stroms. sponges stromatoporoids
0.
o
Ll
TUBIPHYTES corals sponges
SPONGES + TUBIPHYTES PHYLLOID ALGAE
BRYOZOA_
STROMATOPOROIDS t COralS GRAPTOLITES
STROMATOP. + CORALS SPOTTGEST-gKELTTAraDSAE SKELETAL ALGAE
ARCHAEOCYATHIDS + ALGAE BLUE-GREEN ALGAE
reefs
mounds H5 mass extinction
1
Tejas n T ejas I
Zuni m Zuni n Zuni I
U. Ab.n U. Ab. I
L. Ab. n
L. Ab. I
Kas, n Kas. I
Tip.n
Tip. I
Saukm Sauk n
Sauk I