The phrase "a partial skull" is correct and usable in written English.
It can be used in contexts related to anatomy, archaeology, or forensic science when referring to an incomplete skull.
Example: "The archaeologists discovered a partial skull at the excavation site, which provided valuable insights into the species that once inhabited the area."
Alternatives: "an incomplete skull" or "a fragmentary skull".
At that moment, more than 350 years after his death, Descartes existed as a partial skull with a checkered, peripatetic history.
The remains, which include a partial skull and teeth, were recovered from ironstone sediment during an expedition to the site in February 2009, but only now has a detailed description of the fossil been published.
Although it consists of a partial skull, the teeth already have the classic mastodont pattern.
Although only known from a partial skull roof, its proportions seemed more like those of a tetrapod than a fish (Westoll 1938).
The preserved bits that hadn't been lost to erosion include a partial skull, lower jawbones, a few scattered teeth, and a scapula (which in humans is commonly known as the shoulder blade).
The Penghu jaw and teeth most closely resemble a partial skull of H. erectus from Longtan Cave in Hexian on the mainland of China, as well as earlier H. erectus fossils.
This species is based on USNM 2414, a partial skull-roof and skeleton, with a second skull and skeleton, YPM 2182, designated the paratype.
It is represented by a single species, Saadanius hijazensis, which is known only from a single partial skull tentatively dated between 29 and 28 mya (million years ago).
The discovery of a 55,000-year-old partial skull of a modern human in an Israeli cave, the first sighting of Homo sapiens in this time and place, offers skeletal evidence to support the idea that Neandertals and moderns mated in the Middle East between 50,000 and 60,000 years ago.
Pelecanus cf. P. onocrotalus is represented by, among other remains, a well-preserved partial skull.
Discovered in a cave in western Galilee, the partial skull belonged to an individual, probably a woman, who lived and died in the region about 55,000 years ago, placing modern humans there and then for the first time ever.
