Eucladoceros
Encyclopedia
Eucladoceros or bush-antlered deer is an extinct genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 of deer
Deer
Deer are the ruminant mammals forming the family Cervidae. Species in the Cervidae family include white-tailed deer, elk, moose, red deer, reindeer, fallow deer, roe deer and chital. Male deer of all species and female reindeer grow and shed new antlers each year...

 whose fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...

s have been discovered in Europe, the Middle East and Central Asia.

Description

Eucladoceros was a large deer, reaching 2.5 metres (8.2 ft) in body length and standing about 1.8 metres (5.9 ft) tall at the shoulder, only slightly smaller than a modern moose
Moose
The moose or Eurasian elk is the largest extant species in the deer family. Moose are distinguished by the palmate antlers of the males; other members of the family have antlers with a dendritic configuration...

. It had a spectacular set of antler
Antler
Antlers are the usually large, branching bony appendages on the heads of most deer species.-Etymology:Antler originally meant the lowest tine, the "brow tine"...

s which split into twelve tines per pedicle, and were up to 1.7 metres (5.6 ft) wide.

The most distinctive feature of Eucladoceros was its comb-like antlers, especially in E. ctenoides. E. dicranios is the most evolved species of the genus, with a dichotomous branching of each antler tine. Eucladoceros was the first deer genus to have highly evolved antlers; however its cranial shape and dental morphology remained primitive, as in Rusa unicolor.

Distribution

The first find (E. dicranios) was in 1841 by Florentine naturalist Filippo Nesti, director of the "Museo di Storia Naturale di Firenze" ("Museum of Natural History of Florence
Florence
Florence is the capital city of the Italian region of Tuscany and of the province of Florence. It is the most populous city in Tuscany, with approximately 370,000 inhabitants, expanding to over 1.5 million in the metropolitan area....

"). The earliest species of Eucladoceros was described from the Early Pliocene
Pliocene
The Pliocene Epoch is the period in the geologic timescale that extends from 5.332 million to 2.588 million years before present. It is the second and youngest epoch of the Neogene Period in the Cenozoic Era. The Pliocene follows the Miocene Epoch and is followed by the Pleistocene Epoch...

 of China. The most abundant fossil remains of Eucladoceros have come from the Early Pleistocene
Pleistocene
The Pleistocene is the epoch from 2,588,000 to 11,700 years BP that spans the world's recent period of repeated glaciations. The name pleistocene is derived from the Greek and ....

 of Europe and China.

The systematics of European forms is confused and up to twelve poorly defined species are reported. The majority of those species names are synonymous, and at present only two or three good species are recognized: E. dicranios from England, Italy and Azov Sea Area in South Russia; E. ctenoides from Greece, Italy, France, Spain, Holland, and England; and E. teguliensis (a senior synonym of E. senezensis) from France, Holland, and Britain. The latter species is regarded by some authors as a subspecies of E. ctenoides, since there are some finds (for instance, from Ceyssaguet, France) that show a transitional character between E. ctenoides and E. teguliensis.

Some poor remains of Eucladoceros are found also in Tadjikistan, Pakistan, and India.

Species

  • Eucladoceros boulei Marcellin Boule (1928), Age: Latest Pliocene - Early Pleistocene; Nihowan, China
  • Eucladoceros ctenoides (former name E. teguliensis) F. Nesti (1841), Age: Early Pleistocene, Late Villafranchian; Locus typicus: Upper Valdarno, Tuscany, Italy
  • Eucladoceros dichotomus (Original citation: Cervus (Elaphurus) dichotomus Teilhard de Chardin & Piveteau; Early Pleistocene of Nohowan; most probably is not a Eucladoceros species)
  • Eucladoceros dicranios Filippo Nesti (1841), Age: Early Pleistocene, Late Villafranchian; Upper Valdarno, Tuscany, Italy. Note: the type species of the genus.
  • Eucladoceros proboulei (Dong Wey), Age: Early Pliocene; China
  • Eucladoceros senezensis Charles Depéret, 1910, Senèze (Haute-Loire), near Brioude
    Brioude
    Brioude is a commune in the Haute-Loire department in the Auvergne region in south-central France. It lies on the banks of the River Allier, a tributary of the Loire.-History:...

    , France. Note: some authors regard it as a subspecies of E. ctenoides.
  • Eucladoceros tetraceros Sir Wm. Boyd Dawkins (1878), Age: Early Pleistocene; Peyrolles, Haute-Loire, France. Note: a possible synonyme of E. ctenoides.

External links

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