Project 4182: M. R. Carvalho, P. Wilf, E. J. Hermsen, M. A. Gandolfo, N. R. Cúneo, K. R. Johnson. 2013. First record of Todea (Osmundaceae) in South America, from the early Eocene paleorainforests of Laguna del Hunco (Patagonia, Argentina). American Journal of Botany. 100 (9):1831-1848.
Abstract
• Premise of the Study: The early Eocene Laguna del Hunco caldera-lake paleoflora (ca. 52 Ma) from Chubut Province, Argentina, is notably diverse and includes many conifer and angiosperm lineages that are extinct in South America but extant in Australasian rainforests. No ferns have been previously described from Laguna del Hunco. We describe and interpret a new species of fossil Osmundaceae based on fertile and sterile pinnae.• Methods: The fossil specimens were compared with other extant and fossil Osmundaceae based on living and herbarium material and published descriptions. A morphological matrix based on 29 characters was constructed for 17 living species in Osmundaceae, four species assigned to the fossil genus Todites, and the new fossil species. Phylogenetic analyses were conducted under parsimony using morphology and total evidence matrices.• Key Results: Both the new fossil and the Todites species were consistently resolved within the leptopteroid clade of Osmundaceae, and the new species resolved in a clade with the two living Todea species, which are now restricted to Australia, New Guinea, New Zealand, and southern Africa.• Conclusions: Todea amissa sp. nov. is the first record of Todea, living or fossil, in South America and only the second fossil record worldwide. The distribution of extant Todea on Gondwanan continents other than South America is broadly shared with other taxa from Laguna del Hunco, further indicating that a large component of this flora represents a Gondwanic biome that is no longer found on the South American continent.Read the article »
Article DOI: 10.3732/ajb.1200637
Project DOI: 10.7934/P4182, http://dx.doi.org/10.7934/P4182
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 582 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 29 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 70 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:29/0 |
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MorphoBank Project 4182
MorphoBank Project 4182
- Creation Date:
30 January 2022 - Publication Date:
03 August 2022 - Project views: 4181
- Matrix downloads: 3
This research
supported by
Authors' Institutions
- Museo Paleontológico Egidio Feruglio
- National Museum of Natural History, Smithsonian Institution
- Cornell University
- Ohio University
- Pennsylvania State University
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)
- Smithsonian Institution
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||||
MorphoBank Curator Project Administrator | 22 | 1 | 1 | 29 | 0 | 0 | 582 (543, 0, 39) | 0 | 0 | 0 | 0 | |||||
Mónica R. Carvalho Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M28691' (22 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Dipteris conjugata Last Modified in 01/30/22 | 0 | 25 | 25 | 0 | 4 | 0 | 0 | 2 |
[2] Diplopterygium bancroftii Last Modified in 01/30/22 | 0 | 27 | 27 | 0 | 2 | 0 | 0 | 2 |
[3] Gleichenella pectinata Last Modified in 01/30/22 | 0 | 27 | 27 | 0 | 2 | 0 | 0 | 2 |
[4] Matonia pectinata Last Modified in 01/30/22 | 6 | 21 | 21 | 0 | 2 | 0 | 0 | 2 |
[5] Leptopteris hymenophylloides Last Modified in 01/30/22 | 1 | 27 | 26 | 0 | 1 | 0 | 0 | 2 |
[6] Leptopteris wilkesiana Last Modified in 01/30/22 | 0 | 28 | 28 | 0 | 1 | 0 | 0 | 2 |
[7] Leptopteris fraseri Last Modified in 01/30/22 | 0 | 28 | 28 | 0 | 1 | 0 | 0 | 2 |
[8] Osmundastrum cinnamomeum Last Modified in 01/30/22 | 0 | 26 | 26 | 0 | 3 | 0 | 0 | 2 |
[9] Osmunda vachellii Last Modified in 01/30/22 | 1 | 26 | 26 | 0 | 2 | 0 | 0 | 2 |
[10] Osmunda regalis Last Modified in 01/30/22 | 1 | 26 | 26 | 0 | 2 | 0 | 0 | 2 |
[11] Osmunda lancea Last Modified in 01/30/22 | 1 | 25 | 25 | 0 | 3 | 0 | 0 | 2 |
[12] Osmunda javanica Last Modified in 01/30/22 | 0 | 27 | 27 | 0 | 2 | 0 | 0 | 2 |
[13] Osmunda japonica Last Modified in 01/30/22 | 1 | 25 | 25 | 0 | 3 | 0 | 0 | 2 |
[14] Osmunda claytoniana Last Modified in 01/30/22 | 0 | 27 | 27 | 0 | 2 | 0 | 0 | 2 |
[15] Osmunda banksiifolia Last Modified in 01/30/22 | 1 | 26 | 26 | 0 | 2 | 0 | 0 | 2 |
[16] Todea barbara Last Modified in 01/30/22 | 0 | 28 | 28 | 0 | 1 | 0 | 0 | 2 |
[17] Todea papuana Last Modified in 01/30/22 | 0 | 28 | 28 | 0 | 1 | 0 | 0 | 2 |
[18] † Todea amissa Last Modified in 01/30/22 | 9 | 19 | 19 | 0 | 1 | 0 | 0 | 2 |
[19] † Todites cacereii Last Modified in 01/30/22 | 6 | 23 | 22 | 0 | 1 | 0 | 0 | 2 |
[20] † Todites lobatus Last Modified in 01/30/22 | 10 | 18 | 18 | 0 | 1 | 0 | 0 | 2 |
[21] † Todites princeps Last Modified in 01/30/22 | 11 | 17 | 17 | 0 | 1 | 0 | 0 | 2 |
[22] † Todites denticulatus Last Modified in 01/30/22 | 10 | 19 | 18 | 0 | 1 | 0 | 0 | 2 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 4181 | |
Project overview | 389 | |
Documents list | 250 | |
Matrix views | 294 | Matrix landing page (266 views); Matrix by Carvalho et al 2013 (28 views); |
Media views | 1056 | Media search (893 views); M838517 (163 views); |
Taxon list | 1086 | |
Bibliography | 193 | |
Views for media list | 337 | |
Specimen list | 576 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 4 | |
Project downloads | 1 | |
Matrix downloads | 3 | Matrix by Carvalho et al 2013 (3 downloads); |