Project 4809: F. Bellardini, R. A. Coria, D. A. Pino, G. J. Windholz, M. A. Baiano, A. G. Martinelli. 2022. Osteology and phylogenetic relationships of Ligabuesaurus leanzai (Dinosauria: Sauropoda) from the Early Cretaceous of the Neuquén Basin, Patagonia, Argentina. Zoological Journal of the Linnean Society. 196 (4):1333-1393.
Specimen: † Amargasaurus cazaui (unvouchered)
View: skeleton

Abstract

Osteological knowledge of the sauropod dinosaur Ligabuesaurus leanzai is increased by the description of new postcranial elements assigned to the holotype MCF-PVPH-233. Furthermore, a newly referred specimen, MCF-PVPH-228, is recognized after a detailed revision of the abundant sauropod material collected from the Lohan Cura Formation outcrops in the Cerro de los Leones locality (southern Neuquén Basin, Patagonia, Argentina). Recent laboratory preparation and fieldwork allowed us to recognize several new morphological features of the pectoral and pelvic girdles and the cervical and caudal anatomy. Thus, a new diagnosis of Ligabuesaurus is proposed that includes new autapomorphies and a unique combination of features. A phylogenetic analysis based on this new material recovers Ligabuesaurus as a non-titanosaurian somphospondylan, more derived than Sauroposeidon. Therefore, we discuss the palaeobiogeographical implications for the diversification and distribution of South American somphospondylans, especially in the Neuquén Basin, which are closely related to the early stages of evolution of Titanosauria. In this context, Ligabuesaurus represents one of the more complete Early Cretaceous Titanosauriformes and the earliest non-titanosaurian somphospondylan of South America. Finally, the new information on Ligabuesaurus contributes not only to reconstruction of the sauropod faunal composition of south-western Gondwana, but also sheds light on the early stages and emergence of titanosaurians.


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Article DOI: 10.1093/zoolinnean/zlac003

Project DOI: 10.7934/P4809, http://dx.doi.org/10.7934/P4809
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 3 Documents
  • 95 Taxa
  • 1 Specimen
  • 418 Characters
Total size of project's media files: 96.11k

Download Project SDD File
Total scored cells: 15459
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 418
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 932
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:395/23
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MorphoBank Project 4809
  • Creation Date:
    03 August 2023
  • Publication Date:
    08 August 2023
  • Project views: 2820

    Authors' Institutions

    • Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)

    • Museo Argentino de Ciencias Naturales Bernardino Rivadavia

    • Universidad Nacional de Rio Negro



    Members

    member name taxa specimens media chars character
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    (scored, NPA, "-")
    cell
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    Taxonomic Overview for Matrix 'M29430' (95 Taxa)

    taxon unscored
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    scored
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    "-" cellscell images labels on
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    [1] † Plateosaurus engelhardti
    Last Modified in 08/08/23
    51347347020001
    [2] † Mussaurus patagonicus
    Last Modified in 08/08/23
    135266263020001
    [3] † Antetonitrus ingenipes
    Last Modified in 08/08/23
    272135135011001
    [4] † Chinshakiangosaurus chunghoensis
    Last Modified in 08/08/23
    396212101001
    [5] † Isanosaurus attavipachi
    Last Modified in 08/08/23
    373404005001
    [6] † Gongxianosaurus shibeiensis
    Last Modified in 08/08/23
    330858503001
    [7] † Amygdalodon patagonicus
    Last Modified in 08/08/23
    377373704001
    [8] † Lessemsaurus sauropoides
    Last Modified in 08/08/23
    250159158010001
    [9] † Tazoudasaurus naimi
    Last Modified in 08/08/23
    155251251012001
    [10] † Vulcanodon karibaensis
    Last Modified in 08/08/23
    335828201001
    [11] † Shunosaurus
    Last Modified in 08/08/23
    37367365016001
    [12] † Barapasaurus tagorei
    Last Modified in 08/08/23
    22119019007001
    [13] † Patagosaurus fariasi
    Last Modified in 08/08/23
    19221821709001
    [14] † Cetiosaurus oxoniensis
    Last Modified in 08/08/23
    254154152012001
    [15] † Losillasaurus
    Last Modified in 08/08/23
    29112712601001
    [16] † Turiasaurus
    Last Modified in 08/08/23
    25915715702001
    [17] † Omeisaurus
    Last Modified in 08/08/23
    3937337009001
    [18] † Mamenchisaurus
    Last Modified in 08/08/23
    79332329010001
    [19] † Jobaria
    Last Modified in 08/08/23
    6834334109001
    [20] † Haplocanthosaurus priscus
    Last Modified in 08/08/23
    21820119802001
    [21] † Camarasaurus
    Last Modified in 08/08/23
    1140439809001
    [22] † Bellusaurus sui
    Last Modified in 08/08/23
    16725024902001
    [23] † Europasaurus
    Last Modified in 08/08/23
    6335435104001
    [24] † Tehuelchesaurus
    Last Modified in 08/08/23
    28713512902001
    [25] † Tastavinsaurus
    Last Modified in 08/08/23
    24617416903001
    [26] † Brachiosaurus
    Last Modified in 08/08/23
    25416416400001
    [27] † Giraffatitan
    Last Modified in 08/08/23
    2539339102001
    [28] † Abydosaurus
    Last Modified in 08/08/23
    319999900001
    [29] † Cedarosaurus
    Last Modified in 08/08/23
    3191009900001
    [30] † Venenosaurus
    Last Modified in 08/08/23
    341777601001
    [31] † Sauroposeidon
    Last Modified in 08/08/23
    18223723105001
    [32] † Lusotitan
    Last Modified in 08/08/23
    334888400001
    [33] † Padillasaurus
    Last Modified in 08/08/23
    379383801001
    [34] † Galveosaurus
    Last Modified in 08/08/23
    30012011800001
    [35] † Erketu
    Last Modified in 08/08/23
    374434301001
    [36] † Euhelopus
    Last Modified in 08/08/23
    16125825106001
    [37] † Qiaowanlong
    Last Modified in 08/08/23
    379403900001
    [38] † Phuwiangosaurus
    Last Modified in 08/08/23
    17524323904001
    [39] † Ruyangosaurus
    Last Modified in 08/08/23
    28613513101001
    [40] † Chubutisaurus
    Last Modified in 08/08/23
    29312212203001
    [41] † Wintonotitan
    Last Modified in 08/08/23
    342797501001
    [42] † Andesaurus
    Last Modified in 08/08/23
    30811110901001
    [43] † Epachthosaurus
    Last Modified in 08/08/23
    23917417306001
    [44] † Rinconsaurus
    Last Modified in 08/08/23
    29212412402001
    [45] † Muyelensaurus
    Last Modified in 08/08/23
    23617817804001
    [46] † Aeolosaurus
    Last Modified in 08/08/23
    376414101001
    [47] † Overosaurus paradasorum
    Last Modified in 08/08/23
    29911411405001
    [48] † Futalognkosaurus
    Last Modified in 08/08/23
    30211111005001
    [49] † Drusilasaura deseadensis
    Last Modified in 08/08/23
    394232301001
    [50] † Puertasaurus
    Last Modified in 08/08/23
    383323203001
    [51] † Bonitasaura salgadoi
    Last Modified in 08/08/23
    20121921203001
    [52] † Quetecsaurus rusconii
    Last Modified in 08/08/23
    373444302001
    [53] † Baurutitan britoi
    Last Modified in 08/08/23
    376404002001
    [54] † Argentinosaurus
    Last Modified in 08/08/23
    362565501001
    [55] † Patagotitan
    Last Modified in 08/08/23
    20421320904001
    [56] † Mendozasaurus
    Last Modified in 08/08/23
    28313313302001
    [57] † Dreadnoughtus
    Last Modified in 08/08/23
    19322322104001
    [58] † Malawisaurus
    Last Modified in 08/08/23
    22518918805001
    [59] † Notocolossus
    Last Modified in 08/08/23
    328888802001
    [60] † Tapuiasaurus
    Last Modified in 08/08/23
    27114714601001
    [61] † Nemegtosaurus
    Last Modified in 08/08/23
    321989601001
    [62] † Isisaurus
    Last Modified in 08/08/23
    23517817706001
    [63] † Trigonosaurus pricei
    Last Modified in 08/08/23
    332868402001
    [64] † Alamosaurus
    Last Modified in 08/08/23
    16325024807001
    [65] † Rapetosaurus
    Last Modified in 08/08/23
    15426025905001
    [66] † Opisthocoelicaudia
    Last Modified in 08/08/23
    17223923709001
    [67] † Saltasaurus
    Last Modified in 08/08/23
    17124324304001
    [68] † Neuquensaurus australis
    Last Modified in 08/08/23
    20321121104001
    [69] † Histriasaurus bocardeli
    Last Modified in 08/08/23
    391262601001
    [70] † Amazonsaurus maranhensis
    Last Modified in 08/08/23
    377424100001
    [71] † Zapalasaurus bonapartei
    Last Modified in 08/08/23
    357585803001
    [72] † Lavocatisaurus agrioensis
    Last Modified in 08/08/23
    26315315302001
    [73] † Comahuesaurus windhanseni
    Last Modified in 08/08/23
    30311311302001
    [74] † Cathartesaura anaerobica
    Last Modified in 08/08/23
    349686801001
    [75] † Limaysaurus tessonei
    Last Modified in 08/08/23
    13527827508001
    [76] † Rebbachisaurus garasbae
    Last Modified in 08/08/23
    332858402001
    [77] † "Katepensaurus goicocheai"
    Last Modified in 08/08/23
    322969501001
    [78] † "Tataouinea hannibalis"
    Last Modified in 08/08/23
    363555500001
    [79] † Nigersaurus
    Last Modified in 08/08/23
    142267266010001
    [80] † Demandasaurus darwini
    Last Modified in 08/08/23
    28013513503001
    [81] † Suuwassea emiliae
    Last Modified in 08/08/23
    31310310302001
    [82] † Dicraeosaurus hansemanni
    Last Modified in 08/08/23
    103303302013001
    [83] † Amargasaurus cazaui
    Last Modified in 08/08/23
    226179179013001
    [84] † Brachytrachelopan messai
    Last Modified in 08/08/23
    3466161011001
    [85] † Apatosaurus
    Last Modified in 08/08/23
    3038238107001
    [86] † Diplodocus
    Last Modified in 08/08/23
    2638538507001
    [87] † Barosaurus lentus
    Last Modified in 08/08/23
    23717617605001
    [88] † Rayososaurus agrioensis
    Last Modified in 08/08/23
    401171700001
    [89] † Malarguesaurus
    Last Modified in 08/08/23
    377434100001
    [90] † Ninjatitan
    Last Modified in 08/08/23
    382363600001
    [91] † Xianshanosaurus
    Last Modified in 08/08/23
    29612612200001
    [92] † Huabeisaurus
    Last Modified in 08/08/23
    25616616200001
    [93] † Daxiatitan
    Last Modified in 08/08/23
    323959302001
    [94] † Ligabuesaurus
    Last Modified in 08/08/23
    27014814602001
    [95] † Ligabuesaurus extended
    Last Modified in 08/08/23
    21620019804001


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    Bibliography90
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