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Zygomaturus

January 01, 1970

Zygomaturus[2] is an extinct genus of giant marsupial belonging to the family Diprotodontidae which inhabited Australia from the Late Miocene to Late Pleistocene.

Zygomaturus
Temporal range: Late Miocene–Late Pleistocene
Skeletal mount of Zygomaturus trilobus at the Melbourne Museum
Restoration of Z. trilobus
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Diprotodontia
Family: †Diprotodontidae
Subfamily: †Zygomaturinae
Genus: †Zygomaturus
Macleay, 1857
Species
  • †Zygomaturus diahotensis
  • †Zygomaturus gilli
    (Nomen dubium)[1]
  • †Zygomaturus tasmanicus
  • †Zygomaturus trilobus
Skull of Zygomaturus in various views, from Owen 1859

Description edit

 
Z. trilobus jaw

It was a large animal, weighing 500 kg (1100 lbs) or over 700 kg (1544 lbs)[3] and standing about 1.5 m (4.9 ft) tall and 2.5 m (8.2 ft) long.[4] As in other large marsupials, the sinuses within the skull are very large, likely to reduce weight.[5]

Palaeobiology edit

In an analysis of remains from Cuddie Springs, the carbon isotope ratios suggests that it consumed both C3 and C4 plants, with a dental microwear texture indicative of browsing.[6] Preserved remains suggest that Zygomaturus was widely distributed over Australia during the Pleistocene.[7]

Evolution and extinction edit

The earliest members of the genus such as Zygomaturus gilli appeared during the Late Miocene, around 8 million years ago.[8] It is thought that the youngest species, Zygomaturus trilobus became extinct during the latter half of the Late Pleistocene, with typical estimates being about 45,000 years ago, around the time of Aboriginal arrival in Australia.[9] A surprisingly late date between 33.3 ±3.7 Kya and 36.7 ±5.1 Kya was reported in 2017 from the Willandra Lakes Region in New South Wales, which if correct would represent the latest known date for any Australian Megafauna.[10]

Related genera edit

References edit

  1. ^ van Zoelen, J. D.; Camens, A. B.; Worthy, T. H.; Prideaux, G. J. (2023). "Description of the Pliocene marsupial Ambulator keanei gen. nov. (Marsupialia: Diprotodontidae) from inland Australia and its locomotory adaptations". Royal Society Open Science. 10 (5). doi:10.1098/rsos.230211. PMC 10230189.
  2. ^ Literal translation "Big cheekbones"
  3. ^ Peter F. Murray, Patricia Vickers-Rich, 2004, Magnificent Mihirungs: The Colossal Flightless Birds of the Australian Dreamtime, p.326, Indiana University Press
  4. ^ "Zygomaturus trilobus".
  5. ^ Alana C. Sharp (2014) Sinus and brain size in marsupial megafauna: a case of giant airheads
  6. ^ DeSantis, Larisa R. G.; Field, Judith H.; Wroe, Stephen; Dodson, John R. (May 2017). "Dietary responses of Sahul (Pleistocene Australia–New Guinea) megafauna to climate and environmental change". Paleobiology. 43 (2): 181–195. doi:10.1017/pab.2016.50. ISSN 0094-8373.
  7. ^ Webb, Steve (August 2008). "Megafauna demography and late Quaternary climatic change in Australia: A predisposition to extinction". Boreas. 37 (3): 329–345. doi:10.1111/j.1502-3885.2008.00026.x. S2CID 19561004.
  8. ^ Megirian, Dirk; Prideaux, Gavin J.; Murray, Peter F.; Smit, Neil (2010). "An Australian land mammal age biochronological scheme". Paleobiology. 36 (4): 658–671. doi:10.1666/09047.1. ISSN 0094-8373. S2CID 55376525.
  9. ^ Ellis, Richard (2004). No Turning Back: The Life and Death of Animal Species. New York: Harper Perennial. pp. 101. ISBN 0-06-055804-0.
  10. ^ Westaway, Michael C.; Olley, Jon; Grün, Rainer (February 2017). "At least 17,000 years of coexistence: Modern humans and megafauna at the Willandra Lakes, South-Eastern Australia". Quaternary Science Reviews. 157: 206–211. doi:10.1016/j.quascirev.2016.11.031.

Further reading edit

  • Wildlife of Gondwana: Dinosaurs and Other Vertebrates from the Ancient Supercontinent (Life of the Past) by Pat Vickers Rich, Thomas Hewitt Rich, Francesco Coffa, and Steven Morton
  • Marsupial Nutrition by Ian D. Hume
  • Long, J.; Archer, M.; Flannery, T.; Hand, S. (2002). Prehistoric Mammals of Australia and New Guinea: One Hundred Million Years of Evolution. University of New South Wales Press. pp. 98–99. ISBN 978-0-8018-7223-5. OCLC 49860159.
  • Life of Marsupials by Hugh Tyndale-Biscoe
  • Magnificent Mihirungs: The Colossal Flightless Birds of the Australian Dreamtime (Life of the Past) by Peter F. Murray, Patricia Vickers-Rich, and Pat Vickers Rich
  • Classification of Mammals by Malcolm C. McKenna and Susan K. Bell
  • Australia's Lost World: Prehistoric Animals of Riversleigh by Michael Archer, Suzanne J. Hand, and Henk Godthelp
  • World Encyclopedia of Dinosaurs & Prehistoric Creatures: The Ultimate Visual Reference To 1000 Dinosaurs And Prehistoric Creatures Of Land, Air And Sea ... And Cretaceous Eras (World Encyclopedia) by Dougal Dixon
  • The Illustrated Encyclopedia Of Prehistoric Life by Dougal Dixon

External links edit

  • 3D rotatable model of the skull of Zygomaturus trilobus

January 01, 1970
zygomaturus, extinct, genus, giant, marsupial, belonging, family, diprotodontidae, which, inhabited, australia, from, late, miocene, late, pleistocene, temporal, range, late, miocene, late, pleistocene, preꞒ, skeletal, mount, trilobus, melbourne, museum, resto. Zygomaturus 2 is an extinct genus of giant marsupial belonging to the family Diprotodontidae which inhabited Australia from the Late Miocene to Late Pleistocene ZygomaturusTemporal range Late Miocene Late Pleistocene PreꞒ Ꞓ O S D C P T J K Pg N Skeletal mount of Zygomaturus trilobus at the Melbourne Museum Restoration of Z trilobus Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Mammalia Infraclass Marsupialia Order Diprotodontia Family Diprotodontidae Subfamily Zygomaturinae Genus ZygomaturusMacleay 1857 Species Zygomaturus diahotensis Zygomaturus gilli Nomen dubium 1 Zygomaturus tasmanicus Zygomaturus trilobus Skull of Zygomaturus in various views from Owen 1859 Contents 1 Description 2 Palaeobiology 3 Evolution and extinction 4 Related genera 5 References 6 Further reading 7 External linksDescription edit nbsp Z trilobus jaw It was a large animal weighing 500 kg 1100 lbs or over 700 kg 1544 lbs 3 and standing about 1 5 m 4 9 ft tall and 2 5 m 8 2 ft long 4 As in other large marsupials the sinuses within the skull are very large likely to reduce weight 5 Palaeobiology editIn an analysis of remains from Cuddie Springs the carbon isotope ratios suggests that it consumed both C3 and C4 plants with a dental microwear texture indicative of browsing 6 Preserved remains suggest that Zygomaturus was widely distributed over Australia during the Pleistocene 7 Evolution and extinction editThe earliest members of the genus such as Zygomaturus gilli appeared during the Late Miocene around 8 million years ago 8 It is thought that the youngest species Zygomaturus trilobus became extinct during the latter half of the Late Pleistocene with typical estimates being about 45 000 years ago around the time of Aboriginal arrival in Australia 9 A surprisingly late date between 33 3 3 7 Kya and 36 7 5 1 Kya was reported in 2017 from the Willandra Lakes Region in New South Wales which if correct would represent the latest known date for any Australian Megafauna 10 Related genera editHulitherium Maokopia Silvabestius Neohelos KolopsisReferences edit van Zoelen J D Camens A B Worthy T H Prideaux G J 2023 Description of the Pliocene marsupial Ambulator keanei gen nov Marsupialia Diprotodontidae from inland Australia and its locomotory adaptations Royal Society Open Science 10 5 doi 10 1098 rsos 230211 PMC 10230189 Literal translation Big cheekbones Peter F Murray Patricia Vickers Rich 2004 Magnificent Mihirungs The Colossal Flightless Birds of the Australian Dreamtime p 326 Indiana University Press Zygomaturus trilobus Alana C Sharp 2014 Sinus and brain size in marsupial megafauna a case of giant airheads DeSantis Larisa R G Field Judith H Wroe Stephen Dodson John R May 2017 Dietary responses of Sahul Pleistocene Australia New Guinea megafauna to climate and environmental change Paleobiology 43 2 181 195 doi 10 1017 pab 2016 50 ISSN 0094 8373 Webb Steve August 2008 Megafauna demography and late Quaternary climatic change in Australia A predisposition to extinction Boreas 37 3 329 345 doi 10 1111 j 1502 3885 2008 00026 x S2CID 19561004 Megirian Dirk Prideaux Gavin J Murray Peter F Smit Neil 2010 An Australian land mammal age biochronological scheme Paleobiology 36 4 658 671 doi 10 1666 09047 1 ISSN 0094 8373 S2CID 55376525 Ellis Richard 2004 No Turning Back The Life and Death of Animal Species New York Harper Perennial pp 101 ISBN 0 06 055804 0 Westaway Michael C Olley Jon Grun Rainer February 2017 At least 17 000 years of coexistence Modern humans and megafauna at the Willandra Lakes South Eastern Australia Quaternary Science Reviews 157 206 211 doi 10 1016 j quascirev 2016 11 031 Further reading editWildlife of Gondwana Dinosaurs and Other Vertebrates from the Ancient Supercontinent Life of the Past by Pat Vickers Rich Thomas Hewitt Rich Francesco Coffa and Steven Morton Marsupial Nutrition by Ian D Hume Long J Archer M Flannery T Hand S 2002 Prehistoric Mammals of Australia and New Guinea One Hundred Million Years of Evolution University of New South Wales Press pp 98 99 ISBN 978 0 8018 7223 5 OCLC 49860159 Life of Marsupials by Hugh Tyndale Biscoe Magnificent Mihirungs The Colossal Flightless Birds of the Australian Dreamtime Life of the Past by Peter F Murray Patricia Vickers Rich and Pat Vickers Rich Classification of Mammals by Malcolm C McKenna and Susan K Bell Australia s Lost World Prehistoric Animals of Riversleigh by Michael Archer Suzanne J Hand and Henk Godthelp World Encyclopedia of Dinosaurs amp Prehistoric Creatures The Ultimate Visual Reference To 1000 Dinosaurs And Prehistoric Creatures Of Land Air And Sea And Cretaceous Eras World Encyclopedia by Dougal Dixon The Illustrated Encyclopedia Of Prehistoric Life by Dougal DixonExternal links editThe Diprotodontids 3D rotatable model of the skull of Zygomaturus trilobus Retrieved from https en wikipedia org w index php title Zygomaturus amp oldid 1217321459, wikipedia, wiki, book, books, library,

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