Project 4789: A. B. Smith, M. A. Arbizu. 1987. Inverse larval development in a Devonian edrioasteroid from Spain and the phylogeny of Agelacrinitinae. Lethaia. 20 (1):49-62.
Abstract
The first edrioasteroid to be discovered from the Iberian Peninsula is reported from the Emsian (late Lower Devonian) of the north Spanish coast. It belongs to the species Krama devonica (Bassler) but is unusual in being a mirror image form. This is interpreted as the product of situs inversus during larval development whereby the coeloms on the right side rather than the left side of the bilateral larva have given rise to the definitive adult structures. Thus the hydropore lies in its mirror image position vis-a-vis the anterior/posterior axis and this axis must be homologous with Loven's symmetry plane in echinoids. The phylogenetic position of Krama is analysed cladistically and, by combining this with available stratigraphical information, the most parsimonious phylogenetic tree is produced for the subfamily Agelacrinitinae.Read the article »
Article DOI: 10.1111/j.1502-3931.1987.tb00759.x
Project DOI: 10.7934/P4789, http://dx.doi.org/10.7934/P4789
This project contains | Matrices |
---|---|
Download Project SDD File | Total scored cells: 149 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 12 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 28 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:12/0 |
Currently Viewing:
MorphoBank Project 4789
MorphoBank Project 4789
- Creation Date:
27 July 2023 - Publication Date:
15 August 2023 - Project views: 3214
Authors' Institutions
- Natural History Museum, London
- Universidad de Oviedo
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Shreya Jariwala Project Administrator | 13 | 7 | 7 | 12 | 0 | 0 | 149 (149, 0, 0) | 0 | 0 | 0 | ||||
Brooke Long-Fox Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29424' (13 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Curvitriordo Last Modified in 08/09/23 | 2 | 10 | 10 | 0 | 0 | 0 | 0 | 2 |
[2] † Rectitriordo Last Modified in 08/09/23 | 2 | 10 | 10 | 0 | 0 | 0 | 0 | 2 |
[3] † Agelacrinites Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[4] † Krama Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[5] † Postibulla Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[6] † Discocystis Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[7] † Lispidecodus Last Modified in 08/09/23 | 1 | 11 | 11 | 0 | 0 | 0 | 0 | 2 |
[8] † Stalticodiscus Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[9] † Lepidodiscus Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[10] † Ulrichidiscus Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[11] † Isorophusella Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[12] † Isorophus Last Modified in 08/09/23 | 0 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[13] † Hemicystites Last Modified in 08/09/23 | 2 | 10 | 10 | 0 | 0 | 0 | 0 | 2 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 3214 | |
Project overview | 221 | |
Media views | 900 | Media search (390 views); M890566 (75 views); M890567 (72 views); M890568 (73 views); M890569 (74 views); M890570 (72 views); M890571 (75 views); M890572 (69 views); |
Matrix views | 105 | Matrix landing page (102 views); Smith and Arbizu 1987 (3 views); |
Views for media list | 138 | |
Taxon list | 868 | |
Documents list | 110 | |
Specimen list | 781 | |
Bibliography | 91 |