The Doelling's Bowl locality is part of the lower segment of the Yellow Cat Member of the Cedar Mountain Formation, as indicated by the presence of a marker horizon of calcrete.
Traditionally, based on biostratigraphic correlation with ostracods and charophytes, the lower Yellow Cat Member has been considered to belong to the Aptian epoch of the Cretaceous period, at 124.2 ± 2.6 Ma (million years) old.
However, based on uranium-lead dating of detrital zircon, this age has been more recently revised to less than ~139.7 ± 2.2 Ma, which is part of the Valanginian epoch.
Detrital zircon dating provides only a maximum age, since the time between crystallization and deposition is unknown.
The same dating measures produced two maximum age estimates of ~136.4 ± 1.1 Ma and ~132 Ma for the age of the upper segment.
An older age of up to 142 Ma remains possible, as does a younger age around 124 Ma, which would be congruent with the ostracod and charophyte data.

Doelling's Bowl is the origin of the type specimen of the dromaeosaurid theropod Yurgovuchia.
Additionally, in a layer about 25 centimetres (9.8 in) below the preserved feet of the type specimen of Mierasaurus, a large specimen of the iguanodontian ornithopod Iguanacolossus was uncovered along with some smaller individuals.
Indeterminate bones from small ornithopods, as well as part of the tail of a large ornithopod, were mixed in with the remains of Mierasaurus as well.
A large allosauroid theropod is represented by teeth, and a new species of polacanthine ankylosaurian has also been found.
Non-dinosaurs are represented by skull fragments and teeth from possibly goniopholididae crocodyliforms, as well as shell fragments of a turtle similar to Naomichelys.
The area was a waterlogged bog-like environment, judging by the plastic deformation of the bones, the presence of horizontal root systems, and the better-preserved condition of the top surfaces of the bones (which suggests that invertebrates grazed on the bottom surfaces).
The Doelling's Bowl locality is part of the lower segment of the Yellow Cat Member of the Cedar Mountain Formation, as indicated by the presence of a marker horizon of calcrete. Traditionally, based on biostratigraphic correlation with ostracods and charophytes, the lower Yellow Cat Member has been considered to belong to the Aptian epoch of the Cretaceous period, at 124.2 ± 2.6 Ma (million years) old. However, based on uranium-lead dating of detrital zircon, this age has been more recently revised to less than ~139.7 ± 2.2 Ma, which is part of the Valanginian epoch. Detrital zircon dating provides only a maximum age, since the time between crystallization and deposition is unknown. The same dating measures produced two maximum age estimates of ~136.4 ± 1.1 Ma and ~132 Ma for the age of the upper segment. An older age of up to 142 Ma remains possible, as does a younger age around 124 Ma, which would be congruent with the ostracod and charophyte data.
Doelling's Bowl is the origin of the type specimen of the dromaeosaurid theropod Yurgovuchia. Additionally, in a layer about 25 centimetres (9.8 in) below the preserved feet of the type specimen of Mierasaurus, a large specimen of the iguanodontian ornithopod Iguanacolossus was uncovered along with some smaller individuals. Indeterminate bones from small ornithopods, as well as part of the tail of a large ornithopod, were mixed in with the remains of Mierasaurus as well. A large allosauroid theropod is represented by teeth, and a new species of polacanthine ankylosaurian has also been found. Non-dinosaurs are represented by skull fragments and teeth from possibly goniopholididae crocodyliforms, as well as shell fragments of a turtle similar to Naomichelys. The area was a waterlogged bog-like environment, judging by the plastic deformation of the bones, the presence of horizontal root systems, and the better-preserved condition of the top surfaces of the bones (which suggests that invertebrates grazed on the bottom surfaces).
Mierasaurus