Azokh, Khojavend, Azerbaijan
The Azokh jaw
Middle Pleistocene, horizon uncertain (a jaw from 1968 whose layer was written down two ways)
In June 1968 a Palaeolithic dig in Azokh Cave, in Khojavend, lifted the right side of a human jaw with three molars still in it. The museum that keeps it calls the owner Azykhantrop and places the piece in an Acheulean layer. The notebooks do not agree which horizon of that layer it came from.
Why this is extraordinary
Azokh Cave opens in the hills of Khojavend. From the 1960s to 1988 a large dig emptied much of the main passage and reported tools, animal bones, and hearths in a stack of layers. In June 1968 the team found the right side of a human jaw, three molars still in place, the nerve opening preserved, the bone petrified. The museum in Baku calls that person Azykhantrop and says the piece came from an Acheulean horizon of the fifth cultural layer. A replica is what visitors see. The original stays in the store.
So how old is it? The trouble starts in the notebooks. One publication puts the jaw in the third horizon of layer V and says about 250,000 years. Another puts it in the fifth horizon and says about 350,000 to 400,000 years. Those are not two measurements. They are two memories of where the piece lay, each tied to an old picture of ice ages. A geological restudy of what is left in the passage says the jaw was found somewhere in the middle of the fill, and that the exact place is still uncertain. Radiocarbon does not reach this age. Later work has tried electron spin resonance on the cave’s units. Nothing in the sources used here is a date run on this fragment.
A description of the shape called it Middle Pleistocene and pre-Neanderthal. That reading uses a piece of jaw. It does not have a braincase to measure. Acheulean tools in layer V are the cultural company, if the jaw and the tools are the same horizon. Mousterian tools sit higher in the same cave, a later kind of kit. The sequence is real. The square of one bone inside it is the open part.
No one has published a solstice or a star for the mouth. The photograph shows a later season: scaffolding, lamps, people at a sediment face. The 1968 jaw is not on the cloth. What this changes: if the older horizon is the right one, this passage had people deep in the Middle Pleistocene. If the reports cannot be reconciled, the jaw is still human, still from this cave, and still waiting for a square.
Why it matters
A jaw with a secure Middle Pleistocene year would put people in the southern Caucasus far earlier than the upper layers of this same cave, which hold Mousterian tools. A jaw whose square was never fixed can be that old, or younger, and the name does not settle it.
Soviet-period work from the 1960s to 1988 emptied a great part of the largest passage, now called Azokh 1, and reported stone tools, animal bone, and hearth layers. The jaw is the piece that made the cave famous. One publication puts it in the third horizon of layer V and offers about 250,000 years. Another puts it in the fifth horizon of the same layer and offers about 350,000 to 400,000 years. Those years were correlations with an old glacial calendar, not a clock run on the bone. A geological restudy says the fragment was found somewhere in the middle of the fill, and that the exact spot remains uncertain. The museum’s label is more specific: the fourth horizon of the fifth cultural layer, Acheulean, a petrified right mandibular body, the opening for the nerve preserved, three molars. No sky reading of the cave mouth is published in the sources used here. The question is the bone and the layer, not a sunrise.
Photo tour
1 photograph, unedited. On a phone, swipe the row. Choose one to look closely.
- The jaw itself is not in an open photograph used here. The cave picture shows scaffolding from a later dig.
What is still unexplained
These sit beside the consensus account, with the same visual weight. None of them is marked solved.
Location and dating
- Location
- Azokh Cave, near the village of Azokh, Khojavend, Azerbaijan. The pin is the cave, 39.619 north, 46.988 east. The jaw is in the National Museum of History in Baku. The photograph is a later season inside the passage.
- Period label
- Current consensus — open to revision Middle Pleistocene for layer V, on the tool types and on the old glacial correlations. The jaw’s own year is the horizon, and the horizon was published twice.
- How this dating was done
- Typology of the Acheulean tools, and correlation with glacial stages in the first reports. No radiocarbon reaches this age. Later work has used electron spin resonance on sediments and teeth from the cave. It is not quoted here as a date on the jaw.
- What could change it
- A square, a photograph, or a sample label that ties the jaw to one horizon would collapse the two old ages into one problem. A direct method on the fragment itself would replace both correlations.
What is actually there
- The fragment was found in June 1968.
- It is the right side of a jaw, with three molars, kept in Baku. A replica is what the museum shows.
- Reports disagree between the third and the fifth horizon of layer V.
- The first ages, about 250,000 or about 350,000 to 400,000 years, were glacial correlations.
- The passage was dug from the 1960s to 1988, and again after 2002 on a grid.
- No solar or stellar alignment of the mouth is in the sources used here.
Open questions
| Question | Status |
|---|---|
| Which horizon held the jaw? | Open. Two publications, two answers, and the original square is not secure. |
| Is the fragment a pre-Neanderthal? | Open. That is a reading of a partial jaw. The face is missing. |
The current narrative
Where publication stands today. It is the best-supported reading, and it is open to revision. It is not a verdict.
The current narrative — open to revision
A Middle Pleistocene jaw from the Acheulean layer
The fragment belongs to layer V, with Acheulean tools, and is a Middle Pleistocene human, even if the horizon inside that layer is fuzzy.
What supports this
- Every report that names a layer names layer V, the Acheulean unit, not the Mousterian units above.
- A later anatomical description called it Middle Pleistocene and pre-Neanderthal in character.
- The museum keeps it as an early human jaw from this cave, with three molars.
What pushes back
- The horizon inside layer V was published as the third and as the fifth, with ages that do not overlap.
- Those ages were not measured on the bone. They were fitted to a glacial scheme that has since been rebuilt.
- A partial jaw can be called pre-Neanderthal because that was the expected name, not because the braincase is there to test.
What would settle it
It is the centre because the jaw is real and the layer, broadly, is the Acheulean fill. It moves if a record surfaces that puts the piece higher, with the Mousterian.
Emerging narratives
Other published readings. Each may be right. None is adopted here unless the evidence carries it.
An emerging narrative
A jaw without a square
Until the horizon is one horizon, the fragment cannot carry a year, and the species name is ahead of the stratigraphy.
What supports this
- The geological restudy says the exact location in the middle of the fill remains uncertain.
- Two ages, 250,000 and 350,000 to 400,000, are not a range. They are a contradiction.
- Later dating of the cave’s units does not, in the sources used here, include a result printed on this bone.
What pushes back
- Uncertainty inside layer V is not the same as “the jaw could be medieval.” The tools of that layer are Acheulean.
- A museum specimen with molars is not a rumour. The object exists.
- A fuzzy square still sits inside a cave whose sequence, from Acheulean below to Mousterian above, is the frame later excavators inherited.
What would settle it
It stays because the two horizons are both in print. It is not a reason to drop the jaw out of the Pleistocene. It is a reason not to quote one year.
Should the current view be reevaluated?
Open to revision
Azokh’s jaw is a real Middle Pleistocene candidate whose findspot was written down twice. The name Azykhantrop does not add a date. Open keeps the bone and refuses a single year.
What drives this
- A right jaw with three molars, found in 1968.
- Conflicting horizons inside layer V, and glacial ages that were never a laboratory date on the piece.
- A cave sequence that really does run from Acheulean into Mousterian.
This is the museum’s own weighing of the evidence. It is not a visitor vote, and it is separate from the slider.
Weigh it yourself
Anonymous. Nothing here is stored except on this browser. Your lean does not change the assessment beside it.
Visitor lean so far — not evidence. On this browser only; a shared tally is not collected.
If the contested reading is right
What would follow if a reading that is not the consensus turned out to be true, and what could settle it. This explains the stakes. It does not adopt the reading.
The jaw is securely from the older horizon of layer V
People with Acheulean tools were in this passage hundreds of thousands of years ago, and the southern Caucasus joins the early human map on a bone, not only on stones.
Why it is still worth a test
The original field note or photograph that picks one horizon, and a direct date on the fragment or on teeth from that same horizon.
Sources
- Pleistocene to Holocene stratigraphy of Azokh 1 The geological restudy, on the uncertain spot of the 1968 jaw
- Lower jaw of Azykhantrop National Museum of History of Azerbaijan, the 1968 find and the three molars