Nice information for paleontology: the forty eighth excavation marketing campaign on the Sierra de Atapuerca (Burgos) websites, carried out between June 21 and July 22, has yielded very fascinating findings that may lend a hand us higher perceive our ancestors.
Greater than 200 researchers and scholars participated within the excavation of ten other websites: Penal, Gran Dolina, Galeria, Cueva Fantasma, Sima del Elefante, Galeria de las Estatuas, Portalon, Sima de los Huesos and Cueva de El Mirador.
And we should no longer overlook the workforce that washes the sediments that we extract from the ones deposits within the Arlanson River. Bones of smaller animals comparable to rodents, reptiles and amphibians are recovered there.
Fauna and Neanderthal stays
First, lithic equipment have been discovered on the Penal web site that might fit the ones discovered at degree TD6 of the Gran Dolina, which might suggest that the mentioned degree is a lot more intensive than in the past idea. At ranges TD3 and TD4, on the foot of the Gran Valley, claw marks of 2 species of bears that lived about one million years in the past gave the impression.
In Sima del Elefante we discovered the oldest lithic equipment – fabricated from flint, quartzite and quartz. Thus, we will be told extra in regards to the lifetime of human teams within the mountains greater than 1.3 million years in the past. As well as, it’s value highlighting the invention of a nearly entire skeleton of a lynx.
The Galerija web site additionally supplied plentiful faunal stays, basically bison and horses, and stone equipment, amongst which the quartzite biface stands proud. All this confirms that this cave functioned as a spot of meat provide about 300,000 years in the past.
As for Ghost Cave, the invention of a number of stone equipment signifies that Neanderthals occupied a part of this web site. Some other house could be a den of hyenas, as evidenced by means of the a lot of coprolites (fossil droppings) of those carnivores that we discovered.
However the presence of Neanderthals within the Atapuerca mountain vary isn’t unique to the Ghost Cave, as each inside and outside the Statue Gallery we have been in a position to spot proof that they have been additionally at this location.
As for essentially the most trendy websites, Higher Paleolithic ranges (about 35,000 to ten,000 years in the past) had been reached for the primary time within the El Mirador Cave house, even though the precise age has no longer but been made up our minds. This era may be very little represented within the mountain vary of Atapuerca, which can open new strains of analysis.
The treasure of Gran Dolina
I purposely left the findings of the TD6 degree of Gran Dolina for closing. In part as a result of it is the web site I have been running on for thirty years, and partially as it supplied essentially the most outstanding findings of this marketing campaign.
Since 2023, we have now re-excavated the aforementioned degree, recognized for offering the human stays of Homo antecessora, a species that lived in Atapuerca round 850,000 years in the past and is characterised by means of distinctive options, comparable to very primitive enamel and an overly trendy face. In earlier campaigns, we excavated the primary sublevel, TD6-1, which was once a hyena rest room the place we discovered greater than 1,600 coprolites! Lithic equipment, stays of herbivores, or even some stays of Homo antecessor have additionally gave the impression.
Alternatively, it wasn’t till this marketing campaign that we started to find the TD6-2 sublevel. Because it had already been excavated in different spaces, we knew that it contained a camp containing the stays of the fauna that those folks hunted, comparable to deer, horses, bison and rhinoceros. As well as, we discovered lithic equipment fabricated from flint, quartzite, limestone and sandstone with which they dismembered their prey.
Homo antecessor metacarpus recovered at degree TD6 Gran Dolina. Marina Lozano/IPHES-CERCA
Despite the fact that, unquestionably, essentially the most important factor is that we discovered 25 new stays of bones and enamel belonging to Homo antecessor. Those stays come with 3 enamel, vertebrae, bones of the foot and hand, a relatively entire ulna and fragments of alternative lengthy bones, such because the humerus and tibia. With those new fossils, the collection of stays of this species now exceeds 200.
New indicators of cannibalism
Despite the fact that they’ve simply gave the impression and we will be able to learn about and analyze them intimately within the coming months, we will be able to already supply some data. First, it is still showed that the stays of this species display proof of cannibalism. The bones have been deliberately damaged, have reduce marks and have been bitten by means of folks.
Till lately, some other peculiarity of this staff of Homo predecessors was once that it consisted of childish and juvenile folks. The youngest could be round 2 or 3 years outdated and the oldest 17.
Decrease incisor of Homo antecessor at degree TD6-2 from Gran Dolina. Marina Lozano/IPHES-CERCA
The absence of adults was once sudden, and it was once assumed that the cannibalism was once the results of a battle between two rival teams. Certainly one of them would assault the more youthful folks of the opposite staff.
Alternatively, the enamel we have now exposed for the reason that 2024 marketing campaign point out the presence of a number of adults, between the ages of 20 and 26. The collection of those individuals will increase from 8 to between 12 and 15.
According to this initial proof, we should face the problem of re-examining a few of our earlier hypotheses. And as we analyze those new stays, we are already beginning to consider what we will in finding within the 2027 marketing campaign.
