Project 4185: L. C. Martínez, A. E. Artabe, J. Bodnar. 2012. A new cycad stem from the Cretaceous in Argentina and its phylogenetic relationships with other Cycadales. Botanical Journal of the Linnean Society. 170 (3):436-458.
Abstract
The cycads are an ancient group of seed plants. Fossil stems assigned to the Cycadales are, however, rare and few descriptions of them exist. Here, a new genus of cycad stem, Wintucycas gen. nov., is described on the basis of specimens found in the Allen Formation (Upper Cretaceous) at the Salitral Ojo de Agua locality, Río Negro Province, Argentina. The most remarkable features of Wintucyas are: a columnar stem with persistent leaf bases, absence of cataphylls, a wide pith, medullary vascular bundles, mucilage canals and idioblasts; a polyxylic vascular cylinder; inverted xylem; and manoxylic wood. The new genus was included in a phylogenetic analysis and its relationships with fossil and extant genera of Cycadales were examined. In the resulting phylogenetic hypothesis, Wintucycas is circumscribed to subfamily Encephalartoideae, supporting the existence of a greater diversity of this group in South America during the Cretaceous.Read the article »
Article DOI: 10.1111/j.1095-8339.2012.01300.x
Project DOI: 10.7934/P4185, http://dx.doi.org/10.7934/P4185
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 1844 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 88 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 206 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:88/0 |
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MorphoBank Project 4185
MorphoBank Project 4185
- Creation Date:
30 January 2022 - Publication Date:
03 August 2022 - Project views: 5930
- Matrix downloads: 1
Authors' Institutions
- Museo Argentino de Ciencias Naturales Bernardino Rivadavia
- Universidad Nacional de la Plata (UNLP)
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 41 | 1 | 1 | 88 | 0 | 0 | 1844 (1806, 0, 38) | 0 | 0 | 0 | ||||
Leandro C.A. Martínez Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M28892' (41 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Lyginopteris Last Modified in 08/03/22 | 18 | 69 | 67 | 0 | 3 | 0 | 0 | 2 |
[2] † Carboniferous medullosales Last Modified in 08/03/22 | 6 | 81 | 79 | 0 | 3 | 0 | 0 | 2 |
[3] † Bennettitales Last Modified in 08/03/22 | 8 | 79 | 76 | 0 | 4 | 0 | 0 | 2 |
[4] Bowenia Last Modified in 08/03/22 | 0 | 88 | 88 | 0 | 0 | 0 | 0 | 2 |
[5] Stangeria Last Modified in 08/03/22 | 0 | 88 | 88 | 0 | 0 | 0 | 0 | 2 |
[6] Ceratozamia Last Modified in 08/03/22 | 0 | 90 | 88 | 0 | 0 | 0 | 0 | 2 |
[7] Chigua Last Modified in 08/03/22 | 5 | 83 | 83 | 0 | 0 | 0 | 0 | 2 |
[8] Cycas Last Modified in 08/03/22 | 1 | 94 | 87 | 0 | 0 | 0 | 0 | 2 |
[9] Dioon Last Modified in 08/03/22 | 0 | 88 | 88 | 0 | 0 | 0 | 0 | 2 |
[10] Encephalartos Last Modified in 08/03/22 | 1 | 91 | 87 | 0 | 0 | 0 | 0 | 2 |
[11] Lepidozamia Last Modified in 08/03/22 | 0 | 89 | 88 | 0 | 0 | 0 | 0 | 2 |
[12] Macrozamia Last Modified in 08/03/22 | 0 | 93 | 88 | 0 | 0 | 0 | 0 | 2 |
[13] Microcycas Last Modified in 08/03/22 | 0 | 88 | 88 | 0 | 0 | 0 | 0 | 2 |
[14] Zamia Last Modified in 08/03/22 | 0 | 91 | 88 | 0 | 0 | 0 | 0 | 2 |
[15] † Crossozamia Last Modified in 08/03/22 | 61 | 26 | 26 | 0 | 1 | 0 | 0 | 2 |
[16] † Bjuvia Last Modified in 08/03/22 | 54 | 27 | 27 | 0 | 7 | 0 | 0 | 2 |
[17] † Nilanbe Last Modified in 08/03/22 | 33 | 49 | 49 | 0 | 6 | 0 | 0 | 2 |
[18] † Nilssoniocladus Last Modified in 08/03/22 | 62 | 19 | 19 | 0 | 7 | 0 | 0 | 2 |
[19] † Almargemia Last Modified in 08/03/22 | 68 | 20 | 20 | 0 | 0 | 0 | 0 | 2 |
[20] † Ctenis Last Modified in 08/03/22 | 69 | 19 | 19 | 0 | 0 | 0 | 0 | 2 |
[21] † Dioonopsis Last Modified in 08/03/22 | 67 | 21 | 21 | 0 | 0 | 0 | 0 | 2 |
[22] † Kurtziana Last Modified in 08/03/22 | 67 | 21 | 21 | 0 | 0 | 0 | 0 | 2 |
[23] † Mesodescolea plicata Last Modified in 08/03/22 | 67 | 21 | 21 | 0 | 0 | 0 | 0 | 2 |
[24] † Mesosingeria Last Modified in 08/03/22 | 68 | 20 | 20 | 0 | 0 | 0 | 0 | 2 |
[25] † Pseudoctenis Last Modified in 08/03/22 | 68 | 20 | 20 | 0 | 0 | 0 | 0 | 2 |
[26] † Sueria Last Modified in 08/03/22 | 63 | 18 | 18 | 0 | 7 | 0 | 0 | 2 |
[27] † Ticoa Last Modified in 08/03/22 | 67 | 21 | 21 | 0 | 0 | 0 | 0 | 2 |
[28] † Antarcticycas Last Modified in 08/03/22 | 49 | 40 | 39 | 0 | 0 | 0 | 0 | 2 |
[29] † Bororoa Last Modified in 08/03/22 | 66 | 22 | 22 | 0 | 0 | 0 | 0 | 2 |
[30] † Brunoa Last Modified in 08/03/22 | 68 | 20 | 20 | 0 | 0 | 0 | 0 | 2 |
[31] † Charmorgia Last Modified in 08/03/22 | 61 | 27 | 27 | 0 | 0 | 0 | 0 | 2 |
[32] † Fascisvarioxylon Last Modified in 08/03/22 | 69 | 20 | 19 | 0 | 0 | 0 | 0 | 2 |
[33] † Lioxylon Last Modified in 08/03/22 | 68 | 21 | 20 | 0 | 0 | 0 | 0 | 2 |
[34] † Lyssoxylon Last Modified in 08/03/22 | 69 | 19 | 19 | 0 | 0 | 0 | 0 | 2 |
[35] † Menucoa Last Modified in 08/03/22 | 66 | 23 | 22 | 0 | 0 | 0 | 0 | 2 |
[36] † Michelilloa Last Modified in 08/03/22 | 75 | 13 | 13 | 0 | 0 | 0 | 0 | 2 |
[37] † Neochamberlainia Last Modified in 08/03/22 | 70 | 19 | 18 | 0 | 0 | 0 | 0 | 2 |
[38] † Sanchucyas Last Modified in 08/03/22 | 76 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[39] † Vladiloxylon Last Modified in 08/03/22 | 74 | 14 | 14 | 0 | 0 | 0 | 0 | 2 |
[40] † WINTUCYCAS Last Modified in 08/03/22 | 66 | 23 | 22 | 0 | 0 | 0 | 0 | 2 |
[41] † Worsdellia Last Modified in 08/03/22 | 70 | 19 | 18 | 0 | 0 | 0 | 0 | 2 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 5930 | |
Project overview | 430 | |
Media views | 1069 | Media search (891 views); M838523 (178 views); |
Documents list | 274 | |
Matrix views | 290 | Matrix landing page (267 views); Morphological matrix from Martinez 2012 (23 views); |
Views for media list | 348 | |
Taxon list | 2695 | |
Bibliography | 225 | |
Specimen list | 599 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 4 | |
Project downloads | 3 | |
Matrix downloads | 1 | Morphological matrix from Martinez 2012 (1 download); |