Project 4528: F. A. Ferratges, J. Luque, J. L. DomÃnguez, Ã. Ossó, M. Aurell, S. Zamora. 2023. The oldest dairoidid crab (Decapoda, Brachyura, Parthenopoidea) from the Eocene of Spain. Papers in Palaeontology. 9 (3):e1494. (In Press)
Abstract
Eubrachyurans, or ‘higher’ true crabs, are the most speciose group of decapod crustaceans and have a rich fossil record extending into the Early Cretaceous. However, most extant families are first found in the fossil record in the Palaeogene, and particularly in the Eocene. Unfortunately, fossils of many early eubrachyuran groups are often fragmentary, and only a few studies have combined extinct and extant taxa in a phylogenetic context using different optimality criteria. Here, we report the dairoidid crab Phrynolambrus sagittalis sp. nov., an enigmatic eubrachyuran from the upper Eocene of Huesca (northern Spain), whose completeness and exquisite preservation permit us examination of its anatomy in a phylogenetic context. Dairoidids have previously been considered among the oldest stone crabs (Eriphioidea) or elbow crabs (Parthenopoidea), two disparate and distantly related groups of true crabs living today. Mechanical preparation and CT-scanning of the fossil material revealed several diagnostic features that allow a detailed comparison with families across the crab tree of life, and test hypotheses about its phylogenetic affinities. Phrynolambrus sagittalis is the first record of the genus in the Iberian Peninsula, and represents one of the oldest crown parthenopoidean crabs worldwide, expanding our knowledge of the biogeographical distribution of elbow crabs during the Palaeogene, as well as their early origins, anatomical diversity, and systematic affinities. Understanding the disparity of Eocene eubrachyurans is pivotal to disentangling the systematic relationships among crown families, and interpreting the spatio-temporal patterns leading to the evolution of modern faunas.Read the article »
Article DOI: 10.1002/spp2.1494
Project DOI: 10.7934/P4528, http://dx.doi.org/10.7934/P4528
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 4629 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 113 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 258 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:113/0 |
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MorphoBank Project 4528
MorphoBank Project 4528
- Creation Date:
18 January 2023 - Publication Date:
15 August 2023 - Project views: 2324
- Matrix downloads: 1
Authors' Institutions
- Florida International University
- Harvard University
- University of Cambridge
- Universidad de Zaragoza
- Instituto Geológico y Minero de España (IGME-CSIC)
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Javier Luque Project Administrator | 51 | 1 | 1 | 113 | 0 | 0 | 4629 (4398, 0, 231) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29150' (46 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Dromia personata Last Modified in 02/05/23 | 0 | 102 | 102 | 0 | 11 | 0 | 0 | 1 |
[2] Paromola cuvieri Last Modified in 02/05/23 | 0 | 103 | 103 | 0 | 10 | 0 | 0 | 1 |
[3] Homola barbata Last Modified in 02/05/23 | 2 | 101 | 101 | 0 | 10 | 0 | 0 | 1 |
[4] Ranina rania Last Modified in 02/05/23 | 0 | 102 | 102 | 0 | 11 | 0 | 0 | 1 |
[5] Ranilia orientalis Last Modified in 02/05/23 | 1 | 100 | 100 | 0 | 12 | 0 | 0 | 1 |
[6] Dairoides kusei Last Modified in 02/05/23 | 0 | 109 | 109 | 0 | 4 | 0 | 0 | 1 |
[7] Dairoides seafdeci Last Modified in 02/05/23 | 7 | 102 | 102 | 0 | 4 | 0 | 0 | 1 |
[8] Dairoides margaritatus Last Modified in 02/05/23 | 7 | 102 | 102 | 0 | 4 | 0 | 0 | 1 |
[9] Spinolambrus macrochelos Last Modified in 02/05/23 | 0 | 109 | 109 | 0 | 4 | 0 | 0 | 1 |
[10] Rhinolambrus contrarius Last Modified in 02/05/23 | 0 | 109 | 109 | 0 | 4 | 0 | 0 | 1 |
[11] Aulacolambrus hoplonotus Last Modified in 02/05/23 | 4 | 105 | 105 | 0 | 4 | 0 | 0 | 1 |
[12] Garthambrus stellatus Last Modified in 02/05/23 | 1 | 108 | 108 | 0 | 4 | 0 | 0 | 1 |
[13] Cryptopodia fornicata Last Modified in 02/05/23 | 6 | 101 | 101 | 0 | 6 | 0 | 0 | 1 |
[14] † Parthenope numulitica Last Modified in 02/05/23 | 64 | 48 | 48 | 0 | 1 | 0 | 0 | 1 |
[15] † Phrynolambrus sagittalis Last Modified in 02/05/23 | 39 | 73 | 73 | 0 | 1 | 0 | 0 | 1 |
[16] † Phrynolambrus corallinus Last Modified in 02/05/23 | 72 | 40 | 40 | 0 | 1 | 0 | 0 | 1 |
[17] † Eogarthambrus guinotae Last Modified in 02/05/23 | 72 | 40 | 40 | 0 | 1 | 0 | 0 | 1 |
[18] † Mesolambrus bragai Last Modified in 02/05/23 | 74 | 38 | 38 | 0 | 1 | 0 | 0 | 1 |
[19] † Mesolambrus declinatus Last Modified in 02/05/23 | 75 | 37 | 37 | 0 | 1 | 0 | 0 | 1 |
[20] Daldorfia horrida Last Modified in 02/05/23 | 0 | 110 | 110 | 0 | 3 | 0 | 0 | 1 |
[21] Daldorfia trigona Last Modified in 02/05/23 | 0 | 110 | 110 | 0 | 3 | 0 | 0 | 1 |
[22] Daldorfia triangularis Last Modified in 02/05/23 | 0 | 110 | 110 | 0 | 3 | 0 | 0 | 1 |
[23] † Aragolambrus collinsi Last Modified in 02/05/23 | 51 | 61 | 61 | 0 | 1 | 0 | 0 | 1 |
[24] Eriphia verrucosa Last Modified in 02/05/23 | 0 | 107 | 107 | 0 | 6 | 0 | 0 | 1 |
[25] Eriphia cocchii Last Modified in 02/05/23 | 18 | 90 | 90 | 0 | 5 | 0 | 0 | 1 |
[26] Eriphia sebana Last Modified in 02/05/23 | 0 | 107 | 107 | 0 | 6 | 0 | 0 | 1 |
[27] Menippe mercenaria Last Modified in 02/05/23 | 4 | 103 | 103 | 0 | 6 | 0 | 0 | 1 |
[28] Myomenippe hardwickii Last Modified in 02/05/23 | 4 | 104 | 104 | 0 | 5 | 0 | 0 | 1 |
[29] Calappa pustulosa Last Modified in 02/05/23 | 1 | 108 | 108 | 0 | 4 | 0 | 0 | 1 |
[30] Calappa calappa Last Modified in 02/05/23 | 1 | 108 | 108 | 0 | 4 | 0 | 0 | 1 |
[31] Calappa granulata Last Modified in 02/05/23 | 1 | 108 | 108 | 0 | 4 | 0 | 0 | 1 |
[32] Mursia curtispina Last Modified in 02/05/23 | 0 | 109 | 109 | 0 | 4 | 0 | 0 | 1 |
[33] Aethrae dentata Last Modified in 02/05/23 | 4 | 105 | 105 | 0 | 4 | 0 | 0 | 1 |
[34] Hepatus epheliticus Last Modified in 02/05/23 | 1 | 107 | 107 | 0 | 5 | 0 | 0 | 1 |
[35] Hepatus pudibundus Last Modified in 02/05/23 | 1 | 107 | 107 | 0 | 5 | 0 | 0 | 1 |
[36] Cancer pagurus Last Modified in 02/05/23 | 0 | 107 | 107 | 0 | 6 | 0 | 0 | 1 |
[37] Atelecyclus rotundatus Last Modified in 02/05/23 | 0 | 109 | 109 | 0 | 4 | 0 | 0 | 1 |
[38] Atelecyclus undecimdentatus Last Modified in 02/05/23 | 0 | 109 | 109 | 0 | 4 | 0 | 0 | 1 |
[39] Daira perlata Last Modified in 02/05/23 | 1 | 107 | 107 | 0 | 5 | 0 | 0 | 1 |
[40] Daira coralina Last Modified in 02/05/23 | 56 | 54 | 54 | 0 | 3 | 0 | 0 | 1 |
[41] Percnon gibbesi Last Modified in 02/05/23 | 0 | 106 | 106 | 0 | 7 | 0 | 0 | 1 |
[42] Pachygrapsus marmoratus Last Modified in 02/05/23 | 0 | 106 | 106 | 0 | 7 | 0 | 0 | 1 |
[43] Grapsus adscensionis Last Modified in 02/05/23 | 0 | 105 | 105 | 0 | 8 | 0 | 0 | 1 |
[44] Plagusia depressa Last Modified in 02/05/23 | 1 | 106 | 106 | 0 | 6 | 0 | 0 | 1 |
[45] Ocypode ceratophthalmus Last Modified in 02/05/23 | 1 | 105 | 105 | 0 | 7 | 0 | 0 | 1 |
[46] Gelasimus hesperiae Last Modified in 02/05/23 | 0 | 101 | 101 | 0 | 12 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 2324 | |
Project overview | 174 | |
Matrix views | 121 | Matrix landing page (112 views); Adult morphological matrix for extinct and extant Brachyura, including Phrynolambrus sagittalis n. sp. in Ferratges, Luque, Dominguez, Ossó, Aurell, & Zamora, 2023 (9 views); |
Taxon list | 842 | |
Media views | 713 | Media search (639 views); M851753 (74 views); |
Views for media list | 149 | |
Bibliography | 88 | |
Specimen list | 233 | |
Documents list | 4 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 1 | |
Matrix downloads | 1 | Adult morphological matrix for extinct and extant Brachyura, including Phrynolambrus sagittalis n. sp. in Ferratges, Luque, Dominguez, Ossó, Aurell, & Zamora, 2023 (1 download); |