Morphobank

Project 4431: X. Xu, Q. Tan, Y. Gao, Z. Bao, Z. Yin, B. Guo, J. Wang, L. Tan, Y. Zhang, H. Xing. 2018. A large-sized basal ankylopollexian from East Asia, shedding light on early biogeographic history of Iguanodontia. Science Bulletin. 63 (9):556-563.

Specimen: † Camptosaurus dispar (USNM/PAL:V4277)
View: Foot

More images »

Abstract

A presumably mostly quadrupedal ankylopollexian iguanodontian, Bayannurosaurus perfectus gen. et sp. nov., is reported here, and is represented by an excellently well-preserved skeleton from the Lower Cretaceous Bayingebi Formation of Inner Mongolia, China. The diagnosis of the taxon includes several autapomorphies, notably a dorsally directed, strap-like posterodorsal process of the jugal and a horizontally oriented preacetabular process of the ilium. The nearly complete caudal series retains eight posterior-most caudals with procoelous, trapezoidal centra in dorsal view, and the last three caudals are fully fused. The discovery of B. perfectus opens a critical new window on the early evolution and intercontinental dispersal of Iguanodontia. The skeleton displays a transitional morphology between non-hadrosauriform ankylopollexians and Hadrosauriformes. A phylogenetic analysis indicates that Bayannurosaurus is positioned higher on the tree than Hypselospinus, but below Ouranosaurus just outside of Hadrosauriformes. The tree topology of Iguanodontia with temporal and spatial constraints reveals a possible biogeographic scenario supported by the statistical dispersal-vicariance analysis: around the J/K boundary, non-hadrosauriform ankylopollexians experienced multiple dispersal events from Europe to Asia, accompanying the coeval fall of the global sea level.

Read the article »

Article DOI: 10.1016/j.scib.2018.03.016

Project DOI: 10.7934/P4431, http://dx.doi.org/10.7934/P4431

This project contains	Matrices
1 Media 1 Matrix 2 Documents 40 Taxa 1 Specimen 123 Characters Total size of project's media files: 2.14M Download Project SDD File	Total scored cells: 3669 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 123 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 318 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:123/0

Currently Viewing:
MorphoBank Project 4431

Creation Date:
04 October 2022
Publication Date:
05 October 2022
Matrix downloads: 1

Authors' Institutions

Beijing Museum of Natural History, Beijing

Institute of Vertebrate Paleontology and Paleoanthropology (IVPP), CAS

Inner Mongolia Museum of Natural History

Bureau of Land and Resources of Bayannur

Long Hao Institute of Geology and Paleontology

Members

Brooke Long-Fox
Project Administrator

123

3669
(3669, 0, 0)

Taxonomic Overview for Matrix 'M29008' (40 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † Lesothosaurus diagnosticus Taxon name last Modified on 10/05/22	5	118	118	0	0	0	0	1
[2] † Hypsilophodon foxii Taxon name last Modified on 10/05/22	0	123	123	0	0	0	0	1
[3] † Zalmoxes robustus Taxon name last Modified on 10/05/22	24	99	99	0	0	0	0	1
[4] † Zalmoxes shqiperorum Taxon name last Modified on 10/05/22	47	76	76	0	0	0	0	1
[5] † Rhabdodon spp Taxon name last Modified on 10/05/22	33	91	90	0	0	0	0	1
[6] † Tenontosaurus tilletti Taxon name last Modified on 10/05/22	0	123	123	0	0	0	0	1
[7] † Dryosaurus altus Taxon name last Modified on 10/05/22	0	123	123	0	0	0	0	1
[8] † Dysalotosaurus lettowvorbecki Taxon name last Modified on 10/05/22	9	114	114	0	0	0	0	1
[9] † Valdosaurus canaliculatus Taxon name last Modified on 10/05/22	98	26	25	0	0	0	0	1
[10] † Camptosaurus dispar Taxon name last Modified on 10/05/22	2	122	121	0	0	0	0	1
[11] † Uteodon aphanoecetes Taxon name last Modified on 10/05/22	55	68	68	0	0	0	0	1
[12] † Dakotadon lakotaensis Taxon name last Modified on 10/05/22	71	52	52	0	0	0	0	1
[13] † Hippodraco scutodens Taxon name last Modified on 10/05/22	64	59	59	0	0	0	0	1
[14] † Iguanacolossus fortis Taxon name last Modified on 10/05/22	77	46	46	0	0	0	0	1
[15] † Proa valdearinnoensis Taxon name last Modified on 10/05/22	42	81	81	0	0	0	0	1
[16] † Lanzhousaurus magnidens Taxon name last Modified on 10/05/22	87	36	36	0	0	0	0	1
[17] † Hypselospinus fittoni Taxon name last Modified on 10/05/22	64	59	59	0	0	0	0	1
[18] † Bayannurosaurus perfectus Taxon name last Modified on 10/05/22	14	109	109	0	0	0	0	1
[19] † Ouranosaurus nigeriensis Taxon name last Modified on 10/05/22	4	119	119	0	0	0	0	1
[20] † Barilium dawsoni Taxon name last Modified on 10/05/22	68	55	55	0	0	0	0	1
[21] † Mantellisaurus atherfieldensis Taxon name last Modified on 10/05/22	0	124	123	0	0	0	0	1
[22] † Iguanodon bernissartensis Taxon name last Modified on 10/05/22	0	124	123	0	0	0	0	1
[23] † Altirhinus kurzanovi Taxon name last Modified on 10/05/22	15	108	108	0	0	0	0	1
[24] † Bolong yixianensis Taxon name last Modified on 10/05/22	21	102	102	0	0	0	0	1
[25] † Jinzhousaurus yangi Taxon name last Modified on 10/05/22	8	115	115	0	0	0	0	1
[26] † Equijubus normani Taxon name last Modified on 10/05/22	41	82	82	0	0	0	0	1
[27] † Sirinthorna khoratensis Taxon name last Modified on 10/05/22	58	65	65	0	0	0	0	1
[28] † Batyrosaurus rozhdestvenskyi Taxon name last Modified on 10/05/22	73	50	50	0	0	0	0	1
[29] † Penelopognathus weishampeli Taxon name last Modified on 10/05/22	105	18	18	0	0	0	0	1
[30] † Probactrosaurus gobiensis Taxon name last Modified on 10/05/22	12	113	111	0	0	0	0	1
[31] † Eolambia caroljonesa Taxon name last Modified on 10/05/22	12	112	111	0	0	0	0	1
[32] † Levnesovia transoxiana Taxon name last Modified on 10/05/22	58	65	65	0	0	0	0	1
[33] † Bactrosaurus johnsoni Taxon name last Modified on 10/05/22	6	118	117	0	0	0	0	1
[34] † Gilmoreosaurus mongoliensis Taxon name last Modified on 10/05/22	37	89	86	0	0	0	0	1
[35] † Tethyshadros insularis Taxon name last Modified on 10/05/22	9	114	114	0	0	0	0	1
[36] † Telmatosaurus transsylvanicus Taxon name last Modified on 10/05/22	45	78	78	0	0	0	0	1
[37] † Hypacrosaurus altispinus Taxon name last Modified on 10/05/22	0	123	123	0	0	0	0	1
[38] † Lambeosaurus lambei Taxon name last Modified on 10/05/22	0	123	123	0	0	0	0	1
[39] † Saurolophus osborni Taxon name last Modified on 10/05/22	0	123	123	0	0	0	0	1
[40] † Edmontosaurus regalis Taxon name last Modified on 10/05/22	0	124	123	0	0	0	0	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	4
Project downloads	3
Matrix downloads	1	Matrix from Xing et. al 2018 (1 download);