Leptobos

{{Short description|Extinct genus of mammals}}

{{Automatic taxobox

| fossil_range = Late Pliocene to Early Pleistocene {{fossilrange|3.5|0.8}}

| image = Leptobos etruscus 1.JPG

| image_caption = Skeleton of Leptobos etruscus

| taxon = Leptobos

| authority = Rütimeyer, 1878

| subdivision_ranks = Species

| subdivision = See text

}}

Leptobos is an extinct genus of large bovine, known from the Late Pliocene and Early Pleistocene of Eurasia.

Distribution

The range of Leptobos extended from the Iberian Peninsula to northern China.{{Cite journal |last1=Sorbelli |first1=Leonardo |last2=Alba |first2=David M. |last3=Cherin |first3=Marco |last4=Moullé |first4=Pierre-Élie |last5=Brugal |first5=Jean-Philip |last6=Madurell-Malapeira |first6=Joan |date=June 2021 |title=A review on Bison schoetensacki and its closest relatives through the early-Middle Pleistocene transition: Insights from the Vallparadís Section (NE Iberian Peninsula) and other European localities |url=https://linkinghub.elsevier.com/retrieve/pii/S0277379121001402 |journal=Quaternary Science Reviews |language=en |volume=261 |pages=106933 |doi=10.1016/j.quascirev.2021.106933 |bibcode=2021QSRv..26106933S |s2cid=235527116}} L. merlai is known from the Early Pleistocene of central Italy.{{Cite journal |last=Cherin |first=Marco |last2=D’Allestro |first2=Vittorio |last3=Masini |first3=Federico |date=9 December 2017 |title=New Bovid Remains from the Early Pleistocene of Umbria (Italy) and a Reappraisal of Leptobos merlai |url=https://link.springer.com/article/10.1007/s10914-017-9421-x |journal=Journal of Mammalian Evolution |language=en |volume=26 |issue=2 |pages=201–224 |doi=10.1007/s10914-017-9421-x |issn=1064-7554 |access-date=22 February 2025 |via=Springer Nature Link|url-access=subscription }}

Description

Species of Leptobos weighed on average {{Convert|320|kg}}.{{Cite journal |last1=Brugal |first1=Jean‑Philip |last2=Croitor |first2=Roman |date=2007-06-01 |title=Evolution, ecology and biochronology of herbivore associations in Europe during the last 3 million years |url=http://journals.openedition.org/quaternaire/1014 |journal=Quaternaire |volume=18 |issue=2 |pages=129152 |doi=10.4000/quaternaire.1014 |issn=1142-2904|url-access=subscription }}

Evolution

The first appearance of Leptobos in Europe around 3.6-3.5 million years ago is considered to define the beginning of the Villafranchian European faunal stage.{{Citation|last=van Kolfschoten|first=T.|title=QUATERNARY STRATIGRAPHY {{!}} Continental Biostratigraphy|date=2013-01-01|url=https://www.sciencedirect.com/science/article/pii/B9780444536433000595|encyclopedia=Encyclopedia of Quaternary Science (Second Edition)|pages=206–214|editor-last=Elias|editor-first=Scott A.|place=Amsterdam|publisher=Elsevier|language=en|isbn=978-0-444-53642-6|access-date=2021-10-31|editor2-last=Mock|editor2-first=Cary J.}} Leptobos is considered to be closely related to the insular genus Epileptobos from the Pleistocene of Java{{Cite journal |last1=Mead |first1=Jim I. |last2=Jin |first2=Changzhu |last3=Wei |first3=Guangbiao |last4=Sun |first4=Chengkai |last5=Wang |first5=Yuan |last6=Swift |first6=Sandra L. |last7=Zheng |first7=Longting |date=December 2014 |title=New data on Leptobos crassus (Artiodactyla, Bovidae) from Renzidong Cave, Early Pleistocene (Nihewanian) of Anhui, China, and an overview of the genus |url=https://linkinghub.elsevier.com/retrieve/pii/S1040618214001098 |journal=Quaternary International |language=en |volume=354 |pages=139–146 |doi=10.1016/j.quaint.2014.02.019|bibcode=2014QuInt.354..139M |url-access=subscription }}, and is considered to be ancestral to Bison.{{Cite journal |last1=Sorbelli |first1=Leonardo |last2=Cherin |first2=Marco |last3=Kostopoulos |first3=Dimitris S. |last4=Sardella |first4=Raffaele |last5=Mecozzi |first5=Beniamino |last6=Plotnikov |first6=Valerii |last7=Prat-Vericat |first7=Maria |last8=Azzarà |first8=Beatrice |last9=Bartolini-Lucenti |first9=Saverio |last10=Madurell-Malapeira |first10=Joan |date=February 2023 |title=Earliest bison dispersal in Western Palearctic: Insights from the Eobison record from Pietrafitta (Early Pleistocene, central Italy) |url=https://linkinghub.elsevier.com/retrieve/pii/S0277379122005546 |journal=Quaternary Science Reviews |language=en |volume=301 |pages=107923 |doi=10.1016/j.quascirev.2022.107923|bibcode=2023QSRv..30107923S |url-access=subscription }} Leptobos became extinct after being replaced by their descendant Bison during the Early Pleistocene, after a period of temporal overlap. "Leptobos" syrticus from Libya likely belongs in a different genus.

Species

  • Leptobos brevicornis (China)
  • Leptobos crassus (China)
  • Leptobos falconeri (Pakistan)
  • Leptobos stenometopon (France and Italy)
  • Leptobos merlai (France and Italy)
  • Leptobos furtivus (France also possibly Italy)
  • Leptobos etruscus (France, Italy, and Spain)
  • Leptobos vallisarni (Italy and China)

File:Leptobos.jpg

Palaeobiology

The dietary preference across the genus includes species that were browsers,{{Cite journal |last1=Haiduc |first1=Bogdan S. |last2=Răţoi |first2=Bogdan G. |last3=Semprebon |first3=Gina M. |date=2018-02-22 |title=Dietary reconstruction of Plio-Pleistocene proboscideans from the Carpathian Basin of Romania using enamel microwear |url=https://www.sciencedirect.com/science/article/pii/S1040618217315148 |journal=Quaternary International |language=en |volume=467 |pages=222–229 |bibcode=2018QuInt.467..222H |doi=10.1016/j.quaint.2018.01.039 |issn=1040-6182|url-access=subscription }} grazers{{Cite journal |last1=Zhao |first1=LingXia |last2=Zhang |first2=LiZhao |last3=Zhang |first3=FuSong |last4=Wu |first4=XinZhi |date=2011-09-12 |title=Enamel carbon isotope evidence of diet and habitat of Gigantopithecus blacki and associated mammalian megafauna in the Early Pleistocene of South China |journal=Chinese Science Bulletin |volume=56 |issue=33 |pages=3590–3595 |bibcode=2011ChSBu..56.3590Z |doi=10.1007/s11434-011-4732-4 |issn=1001-6538 |s2cid=129987242 |doi-access=free}} and mixed feeders.{{Cite journal |last1=Strani |first1=Flavia |last2=DeMiguel |first2=Daniel |last3=Sardella |first3=Raffaele |last4=Bellucci |first4=Luca |date=July 2018 |title=Resource and niche differentiation mechanisms by sympatric Early Pleistocene ungulates: the case study of Coste San Giacomo |url=https://linkinghub.elsevier.com/retrieve/pii/S1040618216315944 |journal=Quaternary International |language=en |volume=481 |pages=157–163 |bibcode=2018QuInt.481..157S |doi=10.1016/j.quaint.2017.08.064 |s2cid=90466225}} Ecomorphological analysis of its humerus suggests that L. etruscus was adapted for open grassland habitats.{{Cite journal |last=Serio |first=Carmela |last2=Brown |first2=Richard P. |last3=Clauss |first3=Marcus |last4=Meloro |first4=Carlo |date=9 August 2024 |title=Three‐dimensional geometric morphometric analyses of humerus ecomorphology: New perspectives for paleohabitat reconstruction in carnivorans and ungulates |url=https://anatomypubs.onlinelibrary.wiley.com/doi/full/10.1002/ar.25553 |journal=The Anatomical Record |language=en |volume=308 |issue=3 |pages=946–974 |doi=10.1002/ar.25553 |issn=1932-8486 |pmc=11791394 |pmid=39126145 |access-date=22 February 2025 |via=Wiley Online Library}}

References

{{Reflist}}