Project 1020: C. S. Wirkner, S. Richter. 2010. Evolutionary morphology of the circulatory system in Peracarida (Malacostraca; Crustacea). Cladistics. 26 (2):143-167.
Abstract
We demonstrate that by formulating guidelines for evolutionary morphology the transparency, reproducibility, and intersubject testability of evolutionary hypotheses based on morphological data can be enhanced. The five main steps in our concept of evolutionary morphology are (i) taxon sampling, (ii) structural analysis, (iii) character conceptualization, (iv) phylogenetic analysis, and (v) evolutionary interpretation. We illustrate this concept on the example of the morphology of the circulatory organs in peracarid Malacostraca. The analysis is based on recently published accounts in which detailed structural analyses were carried out, and on the older literature. Detailed conceptualizations of 22 characters of the circulatory system are given for 28 terminals. In a further step these characters are included in a recently revised matrix, resulting in 110 characters. The resulting parsimony analysis yielded a single most parsimonious tree with a length of 309 steps. The most significant results are that Peracarida is monophyletic, Amphipoda is the sister taxon to the Mancoida sensu stricto, the relict cave‐dwelling taxa Thermosbaenacea, Spelaeogriphacea, and Mictocarididae form a monophylum and Tanaidacea is the sister group to a monophylum comprising Cumacea and Isopoda. The evolutionary analysis shows that the ground pattern features of the circulatory organs in Peracarida are a tubular heart extending through the whole thorax, a posterior aorta with lateral arteries, and a ventral vessel system. Important features within the Peracarida are the backward shift of the anterior border of the heart, the reduction of the ventral vessel system, and two patterns of cardiac arteries, one common to the amphipod and tanaidacean terminals, and one to the cumacean and isopod terminals.Read the article »
Article DOI: 10.1111/j.1096-0031.2009.00278.x
Project DOI: 10.7934/P1020, http://dx.doi.org/10.7934/P1020
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 2624 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 110 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 299 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:110/0 |
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MorphoBank Project 1020
MorphoBank Project 1020
- Creation Date:
12 September 2013 - Publication Date:
13 September 2013 - Project views: 37623
- Matrix downloads: 5
Authors' Institutions
- Universitaet Rostock
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Maureen O'Leary Project Administrator | 28 | 1 | 1 | 110 | 0 | 0 | 2624 (2379, 0, 245) | 0 | 0 | 0 | ||||
MorphoBank Curator Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Stefan Richter Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Christian Wirkner Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M2251' (28 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Nebalia bipes Last Modified in 12/05/13 | 6 | 94 | 94 | 0 | 10 | 0 | 0 | 4 |
[2] Squilla oratoria Last Modified in 12/05/13 | 4 | 101 | 101 | 0 | 5 | 0 | 0 | 4 |
[3] Melicertus kerathurus Last Modified in 12/05/13 | 9 | 97 | 97 | 0 | 4 | 0 | 0 | 4 |
[4] Palaemonetes vulgaris Last Modified in 12/05/13 | 7 | 99 | 99 | 0 | 4 | 0 | 0 | 4 |
[5] Anaspides tasmaniae Last Modified in 12/05/13 | 4 | 99 | 99 | 0 | 7 | 0 | 0 | 4 |
[6] Euphausia superba Last Modified in 12/05/13 | 7 | 99 | 99 | 0 | 4 | 0 | 0 | 4 |
[7] Tethysbaena argentarii Last Modified in 12/05/13 | 15 | 77 | 77 | 0 | 18 | 0 | 0 | 4 |
[8] Lophogaster typicus Last Modified in 12/05/13 | 13 | 96 | 96 | 0 | 1 | 0 | 0 | 4 |
[9] Eucopia unguiculata Last Modified in 12/05/13 | 26 | 79 | 79 | 0 | 5 | 0 | 0 | 4 |
[10] Neognathophausia ingens Last Modified in 12/05/13 | 31 | 74 | 74 | 0 | 5 | 0 | 0 | 4 |
[11] Boreomysis arctica Last Modified in 12/05/13 | 22 | 85 | 85 | 0 | 3 | 0 | 0 | 4 |
[12] Neomysis integer Last Modified in 12/05/13 | 1 | 106 | 106 | 0 | 3 | 0 | 0 | 4 |
[13] Orchestia cavimana Last Modified in 12/05/13 | 0 | 103 | 103 | 0 | 7 | 0 | 0 | 4 |
[14] Hyalella azteca Last Modified in 12/05/13 | 30 | 67 | 67 | 0 | 13 | 0 | 0 | 4 |
[15] Hyperia galba Last Modified in 12/05/13 | 28 | 75 | 75 | 0 | 7 | 0 | 0 | 4 |
[16] Caprella mutica Last Modified in 12/05/13 | 26 | 72 | 72 | 0 | 12 | 0 | 0 | 4 |
[17] Trogloleleupia leleupi Last Modified in 12/05/13 | 37 | 53 | 53 | 0 | 20 | 0 | 0 | 4 |
[18] Spelaeogriphus lepidops Last Modified in 12/05/13 | 28 | 66 | 66 | 0 | 16 | 0 | 0 | 4 |
[19] Mictocaris halope Last Modified in 12/05/13 | 28 | 66 | 66 | 0 | 16 | 0 | 0 | 4 |
[20] Hemilamprops rosea Last Modified in 12/05/13 | 27 | 70 | 70 | 0 | 13 | 0 | 0 | 4 |
[21] Diastylis rathkei Last Modified in 12/05/13 | 12 | 90 | 90 | 0 | 8 | 0 | 0 | 4 |
[22] Leucon nasica Last Modified in 12/05/13 | 20 | 77 | 77 | 0 | 13 | 0 | 0 | 4 |
[23] Tanais dulongii Last Modified in 12/05/13 | 3 | 103 | 103 | 0 | 4 | 0 | 0 | 4 |
[24] Apseudes bermudeus Last Modified in 12/05/13 | 14 | 84 | 83 | 0 | 13 | 0 | 0 | 4 |
[25] Neotanais sp. Last Modified in 12/05/13 | 29 | 68 | 68 | 0 | 13 | 0 | 0 | 4 |
[26] Paramphisopus palustris Last Modified in 12/05/13 | 23 | 80 | 80 | 0 | 7 | 0 | 0 | 4 |
[27] Porcellio scaber Last Modified in 12/05/13 | 5 | 97 | 97 | 0 | 8 | 0 | 0 | 4 |
[28] Asellus aquaticus Last Modified in 12/05/13 | 2 | 102 | 102 | 0 | 6 | 0 | 0 | 4 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 37623 | |
Project overview | 5054 | |
Media views | 6965 | Media search (5831 views); M307059 (1134 views); |
Specimen list | 3205 | |
Taxon list | 17318 | |
Bibliography | 2044 | |
Matrix views | 3030 | Matrix landing page (2671 views); Matrix (359 views); |
Documents list | 7 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 370 | |
Project downloads | 365 | |
Matrix downloads | 5 | Matrix (5 downloads); |