Noting the occasional appearance of narrow, lizard-like tail marks, Hitchcock speculated that some of the trackways may have been made by large bird-like creatures with long, reptile-like tails.
(Hitchcock; speculated; that some of the trackways may have been made by large bird-like creatures with long, reptile-like tails) Context(Hitchcock speculated,List([68, 88))):(some of the trackways; may have been made; by large bird-like creatures with long, reptile-like tails)
Hitchcock speculated,List([68, 88))
Hitchcock some of the trackways
speculated may have been made
that some of the trackways may have been made by large bird-like creatures with long, reptile-like tails
by large bird-like creatures with long, reptile-like tails