Shortened skull base and disproportionately short upper jaw were evident.
When Ardipithecus did not meet these expectations, some scientists even refused to accept it as a hominid, suggesting that it was some kind of "strange ape" that had evolved diminished, nonhoning canines, a shortened skull, a broader pelvis, and odd feet in parallel with later Australopithecus species.
In the Niata, brachycephaly was considered breed defining2 even though heavily shortened skulls have been observed in several cattle breeds as a form of malformation2,3,4,5,6.
DD mice of both genders have shortened skulls, whereas in PD, females appear normal and males exhibit an overall increase in length compared to WT. We, therefore, postulate that the craniofacial phenotype of WBS individuals is regulated mostly by genes in the DD region.
In affected cn/cn mutants shortening involves skull, axial skeleton and tail, and limbs.
The skull was shortened and dome-shaped.
Mice carrying activating mutations of FGFR3 mimicking human ACH exhibit smaller body size, dome-shaped skull and shortened long bones with disorganized chondrocyte columns in growth plates.
Both PD and D/P males are growth-retarded, while skulls are shortened and brains are smaller in DD and D/P.
The craniofacial dysmorphism presented by the Fra1 transgenic mice was a skull that was shortened along the anterior-posterior axis and larger along the mediolateral axis as compared to wildtype skulls [35].
Various secondary pathological conditions are also observed; in cattle, affected calves are typically stillborn, slightly premature (250-275 days of gestation), and often display features including small body size, flat skull, impacted molars, shortened mandible (brachygnathia inferior), and protruding tongue ([ 3- 11]; Figure 1).
The skull grew larger, especially the cranium, while the neck shortened to provide better support for the skull.
