Project 4863: S. L. Brusatte, M. J. Benton, J. B. Desojo, M. C. Langer. 2010. The higher-level phylogeny of Archosauria (Tetrapoda: Diapsida). Journal of Systematic Palaeontology. 8 (1):3-47.
Abstract
Crown group Archosauria, which includes birds, dinosaurs, crocodylomorphs, and several extinct Mesozoic groups, is a primary division of the vertebrate tree of life. However, the higher-level phylogenetic relationships within Archosauria are poorly resolved and controversial, despite years of study. The phylogeny of crocodile-line archosaurs (Crurotarsi) is particularly contentious, and has been plagued by problematic taxon and character sampling. Recent discoveries and renewed focus on archosaur anatomy enable the compilation of a new dataset, which assimilates and standardizes character data pertinent to higher-level archosaur phylogeny, and is scored across the largest group of taxa yet analysed. This dataset includes 47 new characters (25% of total) and eight taxa that have yet to be included in an analysis, and total taxonomic sampling is more than twice that of any previous study. This analysis produces a well-resolved phylogeny, which recovers mostly traditional relationships within Avemetatarsalia, places Phytosauria as a basal crurotarsan clade, finds a close relationship between Aetosauria and Crocodylomorpha, and recovers a monophyletic Rauisuchia comprised of two major subclades. Support values are low, suggesting rampant homoplasy and missing data within Archosauria, but the phylogeny is highly congruent with stratigraphy. Comparison with alternative analyses identifies numerous scoring differences, but indicates that character sampling is the main source of incongruence. The phylogeny implies major missing lineages in the Early Triassic and may support a Carnian-Norian extinction event.Read the article »
Article DOI: 10.1080/14772010903537732
Project DOI: 10.7934/P4863, http://dx.doi.org/10.7934/P4863
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 2375 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 187 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 411 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:187/0 |
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MorphoBank Project 4863
MorphoBank Project 4863
- Creation Date:
04 September 2023 - Publication Date:
01 April 2024 - Project views: 854
Authors' Institutions
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Universidade de Sao Paulo (USP, University of Sao Paulo)
- Bayerische Staatssammlung fuer Palaeontologie und Geologie
- University of Bristol
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Shreya Jariwala Project Administrator | 23 | 3 | 3 | 187 | 0 | 0 | 2375 (2375, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29775' (23 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Revuletosaurus Last Modified in 03/31/24 | 92 | 95 | 95 | 0 | 0 | 0 | 0 | 1 |
[2] † Erpetosuchus Last Modified in 03/31/24 | 106 | 81 | 81 | 0 | 0 | 0 | 0 | 1 |
[3] † Gracilisuchus Last Modified in 03/31/24 | 20 | 167 | 167 | 0 | 0 | 0 | 0 | 1 |
[4] † Arganasuchus Last Modified in 03/31/24 | 155 | 32 | 32 | 0 | 0 | 0 | 0 | 1 |
[5] † Arizonasaurus Last Modified in 03/31/24 | 65 | 122 | 122 | 0 | 0 | 0 | 0 | 1 |
[6] † Batrachotomus Last Modified in 03/31/24 | 29 | 158 | 158 | 0 | 0 | 0 | 0 | 1 |
[7] † Bromsgroveia Last Modified in 03/31/24 | 162 | 25 | 25 | 0 | 0 | 0 | 0 | 1 |
[8] † Effigia Last Modified in 03/31/24 | 19 | 168 | 168 | 0 | 0 | 0 | 0 | 1 |
[9] † Fasolasuchus Last Modified in 03/31/24 | 113 | 74 | 74 | 0 | 0 | 0 | 0 | 1 |
[10] † Lotosaurus Last Modified in 03/31/24 | 43 | 144 | 144 | 0 | 0 | 0 | 0 | 1 |
[11] † Poposaurus Last Modified in 03/31/24 | 99 | 88 | 88 | 0 | 0 | 0 | 0 | 1 |
[12] † Postosuchus Last Modified in 03/31/24 | 12 | 175 | 175 | 0 | 0 | 0 | 0 | 1 |
[13] † Prestosuchus Last Modified in 03/31/24 | 27 | 160 | 160 | 0 | 0 | 0 | 0 | 1 |
[14] † Qianosuchus Last Modified in 03/31/24 | 74 | 113 | 113 | 0 | 0 | 0 | 0 | 1 |
[15] † Rauisuchus Last Modified in 03/31/24 | 106 | 81 | 81 | 0 | 0 | 0 | 0 | 1 |
[16] † Saurosuchus Last Modified in 03/31/24 | 24 | 163 | 163 | 0 | 0 | 0 | 0 | 1 |
[17] † Shuvosaurus Last Modified in 03/31/24 | 16 | 171 | 171 | 0 | 0 | 0 | 0 | 1 |
[18] † Sillosuchus Last Modified in 03/31/24 | 145 | 42 | 42 | 0 | 0 | 0 | 0 | 1 |
[19] † Stagonosuchus Last Modified in 03/31/24 | 141 | 46 | 46 | 0 | 0 | 0 | 0 | 1 |
[20] † Teratosaurus Last Modified in 03/31/24 | 119 | 68 | 68 | 0 | 0 | 0 | 0 | 1 |
[21] † Ticinosuchus Last Modified in 03/31/24 | 94 | 93 | 93 | 0 | 0 | 0 | 0 | 1 |
[22] † Tikisuchus Last Modified in 03/31/24 | 143 | 44 | 44 | 0 | 0 | 0 | 0 | 1 |
[23] † Yarasuchus Last Modified in 03/31/24 | 122 | 65 | 65 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 854 | |
Media views | 188 | Media search (126 views); M902828 (20 views); M902826 (20 views); M902827 (22 views); |
Project overview | 53 | |
Documents list | 41 | |
Matrix views | 43 | Matrix landing page (37 views); Brasette et al 2010 (6 views); |
Bibliography | 29 | |
Taxon list | 277 | |
Views for media list | 70 | |
Specimen list | 153 |