[PaleoMammalogy • 2018] Vulcanops jennyworthyae • A New, Large-bodied Omnivorous Bat (Noctilionoidea: Mystacinidae) reveals Lost Morphological and Ecological Diversity since the Miocene in New Zealand ---ScRaBBlE

[upper]  Mystacina robusta (Dwyer, 1962)

[lower]  Vulcanops jennyworthyae

Hand, Beck, Archer, Simmons, Gunnell, Scofield, Tennyson, De Pietri, Salisbury & Worthy, 2018

    DOI:  10.1038/s41598-017-18403-w

Abstract

A new genus and species of fossil bat is described from New Zealand’s only pre-Pleistocene Cenozoic terrestrial fauna, the early Miocene St Bathans Fauna of Central Otago, South Island. Bayesian total evidence phylogenetic analysis places this new Southern Hemisphere taxon among the burrowing bats (mystacinids) of New Zealand and Australia, although its lower dentition also resembles Africa’s endemic sucker-footed bats (myzopodids). As the first new bat genus to be added to New Zealand’s fauna in more than 150 years, it provides new insight into the original diversity of chiropterans in Australasia. It also underscores the significant decline in morphological diversity that has taken place in the highly distinctive, semi-terrestrial bat family Mystacinidae since the Miocene. This bat was relatively large, with an estimated body mass of ~40 g, and its dentition suggests it had an omnivorous diet. Its striking dental autapomorphies, including development of a large hypocone, signal a shift of diet compared with other mystacinids, and may provide evidence of an adaptive radiation in feeding strategy in this group of noctilionoid bats.

An artist's impression of a New Zealand burrowing bat, Mystacina robusta, that went extinct last century. The new fossil find, Vulcanops jennyworthyae, that lived millions of years ago in New Zealand, is an ancient relative of burrowing or short-tailed bats.

Illustration: Gavin Mouldey.  

Systematic palaeontology

Order Chiroptera Blumenbach, 1779

Suborder Yangochiroptera Van den Bussche & Hoofer, 2004

Superfamily Noctilionoidea Gray, 1821

Family Mystacinidae Dobson, 1875

Vulcanops jennyworthyae gen. et sp. nov.

Figure 1 Vulcanops jennyworthyae gen. et sp. nov., Bannockburn Formation, St Bathans, Central Otago, New Zealand. Lower dentition. CM 2013.18.790, holotype, left dentary fragment containing m2-3.
(a) Buccal view; (b–b’) stereopair, occlusal view; (c) lingual view m2-3. NMNZ S.52078, paratype, right m1. (d–d’) Stereopair, oblique occlusal view; (e) buccal view; (f) occlusal view.

Abbreviations: cld, cingulid; co, cristid obliqua; end, entoconid; ecd, entocristid; hyd, hypoconid; hyl, hypoconulid; med, metaconid; pacd, paracristid; pad, paraconid; pcd, postcristid; prcd, protocristid; prd, protoconid; tal, talonid; trig, trigonid. Scale bars = 2 mm.

Stratigraphic and geographic distribution: Lower Miocene of Central Otago, New Zealand.

Etymology: From Vulcan, mythological god of fire and volcanoes (Roman), and ops, a suffix commonly used for bats; in reference to New Zealand’s tectonically active nature, as well as to the historic Vulcan Hotel, centre of the hamlet of St Bathans, from which the fauna takes its name. The species name honours Jennifer P. Worthy in recognition of her pivotal role in revealing the diversity of the St Bathans Fauna.

The fossil dig site at St Bathans in New Zealand where the fossilised remains of an extinct giant burrowing bat, Vulcanops jennyworthyae, were found.

photo: Trevor Worthy. 

Washing of St Bathans sediments through sieves in Manuherikia River in New Zealand to collect fossil bones and teeth of an ancient burrowing bat.

photo: Vanesa De Pietri. 

Suzanne J. Hand, Robin M. D. Beck, Michael Archer, Nancy B. Simmons, Gregg F. Gunnell, R. Paul Scofield, Alan J. D. Tennyson, Vanesa L. De Pietri, Steven W. Salisbury and Trevor H. Worthy. 2018. A New, Large-bodied Omnivorous Bat (Noctilionoidea: Mystacinidae) reveals Lost Morphological and Ecological Diversity since the Miocene in New Zealand. Scientific Reports. 8, Article number: 235. DOI:  10.1038/s41598-017-18403-w

 facebook.com/mouldey/posts/10159919578200370

Giant extinct burrowing bat discovered in New Zealand  phy.so/434803633 via @physorg_com

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روابط التحميل والمشاهدة، الروابط المباشرة للتحميل

من هنا

او

من هنا

شاهد هذا الفيديو القصير لطريقة التحميل البسيطة

منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات

كيف تحصل على مدونة جاهزة بآلاف المواضيع والمشاركات من هنا

شاهد قناة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على اليوتيوب لمزيد من الشرح من هنا

رابط مدونة منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات في أي وقت حــــتى لو تم حذفها من هنا
شاهد صفحة منتدى مدونات بلوجر جاهزة بألاف المواضيع والمشاركات على الفيس بوك لمزيد من الشرح من هنا

تعرف على ترتيب مواضيع منتدى مدونات بلوجر جاهزة بآلاف المواضيع والمشاركات (حتى لا تختلط عليك الامور) من هنا

ملاحظة هامة: كل عمليات تنزيل، رفع، وتعديل المواضيع الجاهزة تتم بطريقة آلية، ونعتذر عن اي موضوع مخالف او مخل بالحياء مرفوع بالمدونات الجاهزة بآلاف المواضيع والمشاركات، ولكم ان تقوموا بحذف هذه المواضيع والمشاركات والطريقة بسيطة وسهلة. ــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــسلامـ.