Homo heidelbergensis

Definition

by
published on 26 March 2017
Homo Heidelbergensis Reconstruction (Tim Evanson)

Homo heidelbergensis is an extinct species of human that is identified in both Africa and western Eurasia from roughly 700,000 years ago onwards until around 200,000 years ago – fitting snugly within the Middle Pleistocene. Named for a piece of jawbone found near Heidelberg, Germany, these hominins occupy an intriguing and much-discussed spot in the jumble of human evolution; they are most commonly seen to have developed from Homo erectus and to have given rise to Homo sapiens in Africa and to the Neanderthals in Europe. However, exactly how or why (and even if) this happened, is the subject of much debate, and the same goes for the precise definition of this species – for instance, which fossils should be included and which should not.

Following the general view, though, Homo heidelbergensis is recognised as a distinct species that was a bit more brainy and inventive than its predecessors; fairly complex tools are associated with them, allowing us to catch a glimpse of possibly quite daring hunting strategies involving larger prey animals, which hints at the potential presence of social cooperation.

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Discovery

In 1907 CE, the Grafenrain sandpit at the site of Mauer, near Heidelberg, Germany, became somewhat of a sensation as a robustly built jawbone of a previously unknown species of human was discovered there. After realising it had both some more primitive features as well as bits that reminded him of more recent human features, Otto Schoetensack assigned it to a distinct species he named Homo heidelbergensis in the following year. The jawbone has recently been dated to an age of around 600,000 years ago, which falls within the MIS 15 interglacial period and indicates that its owner would not have instantly frozen solid upon reaching this region.

Homo Heidelbergensis were somewhat chunkier versions of ourselves; noticeably more robust than us, but with a brain size almost approaching our own.

What did they look like?

If one was to stroll into a Middle Pleistocene cave inhabited by an average group of Homo heidelbergensis individuals, they would probably strike one as somewhat chunkier versions of ourselves; noticeably more robust than us, but with a brain size almost approaching our own – perhaps averaging somewhere around 1200 cm3 or upwards, which is markedly bigger than that of Homo erectus.

Although Heidelbergensis still had quite heavily constructed, broad faces reminiscent of Homo erectus, their brow ridges were less pronounced and their noses were more vertical like ours are, instead of sloping forward like those of Erectus. A skull from Bodo, Ethiopia, dated to approximately 600,000 years ago, is a good example of this mix of characteristics, and it can reasonably be grouped not just with other fossils from Africa, like those from Broken Hill in Zambia; Elandsfontein in South Africa; and Lake Ndutu in Tanzania; but also with individuals from Europe, such as those from Petralona in Greece, Arago in France, and generally also the mandible from Mauer, Germany.

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Once the Middle Pleistocene fossil record decides to be a bit more generous, we may be able to more directly visualise the proposed development from Heidelbergensis into Sapiens in Africa and into Neanderthals in Europe. One possible example comes from the site of Boxgrove in England, Europe, which is usually assigned to Homo heidelbergensis and is thought to be around 500,000 years old. The tibia found there shows it was more robust than average Heidelbergensis specimens and indicates body proportions that were better adapted to the cold, foreshadowing those of the later Neanderthals.

Homo Heidelbergensis Skull

Lifestyle

These humans were hunter-gatherers - some of them well-adapted to the generally more stable and warm African terrain; another branch skilled at weaving in and out of regions in Europe along with the growing and receding ice sheets. Obviously, these bands would not have shared the exact same customs down to a tee, but we can still paint something of a general picture, with some splashes of regional colour added.

Part of this general picture involves Heidelbergensis coming home from a fruitful hunt and sticking the day’s catch over a neat fire. Preferred real estate came in the shape of caves, which during the Middle Pleistocene became both more spatially structured and dotted with hearths. Although a more incidental use of fire had been around since at least 1,8 million years ago, fire remained a rare sight up until the days of Homo heidelbergensis. During its timespan, Heidelbergensis became ever more accustomed to fire and its cooking potential; we know that by at least around 400,000 years ago, humans roaming across the Old World - including the colder north, where it was particularly useful – clearly used fire in a habitual way.

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Fire is already a sign of a more advanced sort of lifestyle, and this image is further supported by the tools manufactured and used by Homo heidelbergensis. Their tool kits were more sophisticated than that of Homo erectus and belonged, in contrast to the latter’s early Acheulean, to the later Acheulean industry. In general, the Acheulean is characterised by large bifaces like hand axes, picks and cleavers, whereas later Acheulean tools were thinner, more finely flaked, and more symmetrical.

Hunting prowess

That the tools created by Homo heidelbergensis allowed them not just to process their food and work raw materials to a satisfactory standard, but also to become adept hunters climbing further up the food chain, seems to be suggested by certain finds. At the site of Boxgrove in England, dated to around 500,000 years ago, thin and extensively flaked flint bifaces have been found together with the remains of horses and rhinoceroses. Interestingly, the animal bones bear cut marks, indicating that these large animals seem to have been killed and butchered by Heidelbergensis.

At Schöningen in Germany, things become even more exciting; eight skilfully crafted wooden throwing spears have been found, created at least 300,000 years ago. The remains of numerous horses - many of their bones cut-marked - found in the same horizon, ties in with Boxgrove and seems to indicate that Heidelbergensis systematically hunted large animals. This is no easy feat; the manufacturing of the spears shows active planning, and bringing down these dangerous animals would have required coordination and sophisticated communication.

Homo Heidelbergensis Spear

The backdrop for these activities, then, hints at a social structure that may well have been more widespread. Although wood does not usually stand the test of time very well, Heidelbergensis’ stone tools show a similarly advanced nature across its range, and unless this specific region was somehow unique in its development wooden tools could have made up an important part of these people’s prehistoric tool kits. If that were indeed the case, the social implications that have been suggested for the site of Schöningen are assumed to be valid across the breadth of the species. We may yet discover more evidence to shed light on this matter.

Heidelbergensis’ place within evolution

Since it can sometimes be hard to confidently lump an ambiguous fossil (of which there are plenty) into species such as Homo erectus, Homo heidelbergensis, or the Neanderthals, researchers have come up with all sorts of scenarios describing the place of Heidelbergensis within evolution. Sometimes, Heidelbergensis is scrapped altogether in favour of a more broadly defined Homo erectus; sometimes Heidelbergensis is seen as an exclusively European lineage giving rise to the Neanderthals; and the more stubborn kind of fossils associated with Heidelbergensis seem hard-pressed to attain any kind of consensus.

Around 700,000 years ago Homo heidelbergensis developed from Homo erectus

However, so far the scenario best supported by both the anatomical and the genetic evidence, of which the general lines (although not always the details) are favoured by most people, is as follows. Around 700,000 years ago (and perhaps as early as 780,000 years ago), Homo heidelbergensis had developed from Homo erectus. In Africa, they were part of a gradual, mosaic-like transition into the earliest Homo sapiens around roughly 200,000 years ago. Finds from sites such as Omo Kibish, Ethiopia; Irhoud in Morocco; and Herto in the Middle Awash region seem to showcase this.

Populations of Heidelbergensis also spread through western Eurasia, appearing north of the major mountains of Europe sometime after 700,000 years ago. Clearly adapting well to the challenging environment, the cold conditions led them to evolve the specialised facial features and more stocky build of the Neanderthals, to whom they gave rise and who appear with clear and recognisable features from roughly 200,000 onwards. Of course, with this being a gradual process, the proposed timing is subject to a lot of bickering.

There is another group that also derives from Heidelbergensis, though. In 2008 CE, a human finger bone was found in the Denisova Cave in the Altai Mountains in Siberia that turned out to belong to a separate species dubbed the Denisovans. Genetic evidence has since revealed that they are a sister species to the Neanderthals, with these two groups diverging at some point after the Heidelbergensis lineages leading to Sapiens as well as the Neanderthals and Denisovans had split.

Stringer Graph-model of Homo Evolution

This new addition just makes it even clearer how complex an evolutionary story the Pleistocene really tells. Another confusing example is the fossils at the site of Sima de los Huesos in Spain. Generally grouped within Homo heidelbergensis, these fossils are at least 430,000 years old (and perhaps up to c. 530,000 years old) and already show some Neanderthal-like features, opening up the debate for them being considered proto-Neanderthals: Heidelbergensis on their way to eventually becoming Neanderthals. Interestingly, in 2014 mitochondrial DNA was retrieved from one of the Sima fossils which showed it was closely related to the lineage leading to the Denisovans - a sister group to the Neanderthals.  It is clear that the Pleistocene was home to a complex story of human evolution. 


About the Author

Emma Groeneveld
Emma has studied History & Ancient History. She has a special interest in Herodotus and the Persian Wars as well as the juicy politics of ancient - in particular Roman - courts. Prehistory and human evolution are also huge soft spots.
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Bibliography

  • Arnold, L. J. e.a., "Luminescence dating and palaeomagnetic age constraint on hominins from Sima de los Huesos, Atapuerca, Spain," Journal of Human Evolution Volume 67 (February 2014): 85-107.
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  • Quam, Rolf e.a., "The bony labyrinth of the middle Pleistocene Sima de los Huesos hominins (Sierra de Atapuerca, Spain)," Journal of Human Evolution Volume 90, January 2016: 1–15.
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  • Schoch, W.H. e.a., "New insights on the wooden weapons from the Paleolithic site of Schöningen," Journal of Human Evolution Volume 89, December 2015: 214–225.
  • Shimelmitz, R. e.a, "Fire at will’: the emergence of habitual fire use 350,000 years ago," J. Hum. Evol. 77, 2014: 196–203.
  • Stringer, Chris, Lone Survivors. How we came to be the only humans on earth. (St. Martin's Griffin, 2013).
  • Stringer, Chris, "The status of Homo heidelbergensis (Schoetensack 1908)," Evolutionary Anthropology Volume 21, Issue 3, May/June 2012: 101–107.
  • Stringer, Chris e.a., "The Middle Pleistocene human tibia from Boxgrove," Journal of Human Evolution Volume 34, Issue 5, May 1998: 509-547.
  • Wagner, Günther A. e.a., "Mauer – the type site of Homo heidelbergensis: palaeoenvironment and age," Quaternary Science Reviews Volume 30, Issues 11–12, June 2011: 1464–1473.
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Cite This Work

APA Style

Groeneveld, E. (2017, March 26). Homo_heidelbergensis. Ancient History Encyclopedia. Retrieved from https://www.ancient.eu/Homo_Heidelbergensis/

Chicago Style

Groeneveld, Emma. "Homo_heidelbergensis." Ancient History Encyclopedia. Last modified March 26, 2017. https://www.ancient.eu/Homo_Heidelbergensis/.

MLA Style

Groeneveld, Emma. "Homo_heidelbergensis." Ancient History Encyclopedia. Ancient History Encyclopedia, 26 Mar 2017. Web. 18 Dec 2017.

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Timeline

Visual Timeline
  • c. 2,600,000 BCE - c. 12,000 BCE
    The Palaeolithic (or Old Stone Age) period, ranging from c. 2,6 million years ago until c. 12,000 years ago.
  • c. 2,600,000 BCE - c. 12,000 BCE
    The Pleistocene epoch, ranging from c. 2,6 million years ago until c. 12,000 years ago. It is characterised by repeated cycles of glacials and interglacials.
  • c. 700,000 BCE - c. 200,000 BCE
    Rough estimate of the potential time span of Homo heidelbergensis.
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