• "Wills interpreted the fossiliferous lenticular beds as deposits formed in channels, pools, or lakes on the floodplain and envisaged cyclothemic sedimentation from temporary rivers gradually filling the shallow subsiding Midland Cuvette"

•"Warrington considered the Bromsgrove Sandstone Formation as comprising a sequence of low-sinuosity, braided stream deposits, followed by deposits representing higher-sinuosity meandering rivers: fining-upward fluvial cycles are well developed. The floral and faunal evidence indicates freshwater or brackish conditions at the time of deposition of the fossiliferous units" (Benton et al. 1994)

• "15-20 m of alternating sandstones and shales and a "marl conglomerate" (i.e. intraformational breccia or conglomerate), in lenticular units, with the sandstones apparently cross-bedded"

•"Wills noted that the majority of the fossils came from "lenticular beds of marl and shale, while some appear in the sandstone. Some horizons were very carbonaceous, and those contained abundant fragmentary arachnid remains. The red marl and red sandstone were barren of fossils, and plants occurred in the gray sandstone. Wills (1907) noted that "the Labyrinthodont remains, next to the plants, are the most abundant fossils, but are apparently confined to the marl conglomerate." This unit was the source of most of the bones. Wills (1907) believed that the marl conglomerate formed "a definite horizon in all four quarries." It was known locally as "Cat-brain" and consisted "of small pieces of marl, mostly gray in color, cemented, along with bits of bone or wood and sand, into a compact rock. This hardens to a very tough stone, though one only fit for rough work...They are associated with one or more laminae, covered with fragments of carbonized wood. Further, it is in or close to, these marl-conglomerates that most of the teeth and bones of the vertebrates and pieces of stems of plants are found - a significant fact when we consider how many bone-beds are conglomeratic especially in the Trias.. .in some cases [the conglomerates] appear to have decayed in situ: they are then reduced to a friable and crumbly state, while their color is in parts ochreous and others brown, instead of the usual green" (Benton et al. 1994)