Project 4699: D. Copilaş-Ciocianu, V. Ionesi. 2024. New Miocene fossil taxa illuminate the evolution and paleobiogeography of the Ponto-Caspian gammaroid amphipod radiation. Contributions to Zoology. none:1-21.
Abstract
The Ponto-Caspian radiation of gammaroid amphipods is one of the world’s most diverse lacustrine crustacean radiations as well as the only lacustrine amphipod radiation with a fossil record (dating back 9 Ma). However, the phyletic relationship between fossils and extant species was never formally investigated, hampering our evolutionary understanding of this diverse clade. Here, we present the first morphology-based phylogeny (114 characters) of Ponto-Caspian gammaroids that includes 99% of extant taxa, all previously known fossils, as well as newly discovered fossil specimens from the Late Miocene (10.5 Ma) of eastern Romania. Our phylogenetic and phenetic results strongly support the monophyly of all fossil taxa. However, despite its widespread Late Miocene distribution throughout the Paratethys Sea, this fossil clade left no modern descendants. Its exact phylogenetic position is ambiguous, although it is nested in the radiation’s crown group. Morphometric analyses further indicate that fossil species occupy a narrower and peripheral morphospace relative to extant taxa. Our results support the assignment of the newly discovered Romanian fossils to a new genus, Eogmelina gen. nov. with two new species Eogmelina moldavica gen. et sp. nov. and Eogmelina prisca gen. et sp. nov. Finally, our findings call for a fundamental systematic restructuring of Ponto-Caspian gammaroids at genus and family level.Read the article »
Article DOI: 10.1163/18759866-bja10061
Project DOI: 10.7934/P4699, http://dx.doi.org/10.7934/P4699
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 10072 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 114 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 286 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:114/0 |
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MorphoBank Project 4699
MorphoBank Project 4699
- Creation Date:
30 May 2023 - Publication Date:
19 March 2024 - Project views: 1134
- Matrix downloads: 1
Authors' Institutions
- Nature Research Centre
- Alexandru Ioan Cuza University of Iasi
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Denis Copilas-Ciocianu Project Administrator | 94 | 1 | 1 | 114 | 0 | 0 | 10072 (10063, 0, 9) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29694' (93 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] behningiellabrachypus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[2] cardiophilusbaeri Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[3] cardiophilusmarisnigrae Last Modified in 03/03/24 | 0 | 113 | 113 | 0 | 1 | 0 | 0 | 1 |
[4] zernoviavolgensis Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[5] caspicolaknipovitschi Last Modified in 03/03/24 | 0 | 113 | 113 | 0 | 1 | 0 | 0 | 1 |
[6] akerogammaruscontiguus Last Modified in 03/03/24 | 7 | 107 | 107 | 0 | 0 | 0 | 0 | 1 |
[7] akerogammarusknipowitschi Last Modified in 03/03/24 | 7 | 107 | 107 | 0 | 0 | 0 | 0 | 1 |
[8] amathillinaaffinis Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[9] amathillinacristata Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[10] amathillinamaximowiczi Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[11] amathillinapusilla Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[12] amathillinaspinosa Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[13] axelboeckiaspinosa Last Modified in 03/03/24 | 0 | 111 | 111 | 0 | 3 | 0 | 0 | 1 |
[14] bakuparadoxus Last Modified in 03/03/24 | 9 | 105 | 105 | 0 | 0 | 0 | 0 | 1 |
[15] cephalogammarusmacrocephalus Last Modified in 03/03/24 | 6 | 108 | 108 | 0 | 0 | 0 | 0 | 1 |
[16] chaetogammarushyrcanus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[17] chaetogammarusischnus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[18] chaetogammarustrichiatus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[19] chaetogammaruspauxillus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[20] chaetogammarusplacidus Last Modified in 03/03/24 | 1 | 113 | 113 | 0 | 0 | 0 | 0 | 1 |
[21] chaetogammaruswarpachowskyi Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[22] derzhavinellacava Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[23] derzhavinellamacrochelata Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[24] dikerogammarusbispinosus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[25] dikerogammaruscaspius Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[26] dikerogammarushaemobaphes Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[27] dikerogammarusistanbulensis Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[28] dikerogammarusoskari Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[29] dikerogammarusvillosus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[30] gmelinaaestuarica Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[31] gmelinacostata Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[32] gmelinopsisaurita Last Modified in 03/03/24 | 1 | 113 | 113 | 0 | 0 | 0 | 0 | 1 |
[33] gmelinopsistuberculata Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[34] kuzmelinakusnezowi Last Modified in 03/03/24 | 6 | 108 | 108 | 0 | 0 | 0 | 0 | 1 |
[35] jugogammaruskusceri Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[36] litorogammarusdursi Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[37] litorogammarusmazestiensis Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[38] litorogammaruskaradagiensis Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[39] lanceogammarusandrussowi Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[40] scytaelinasimplex Last Modified in 03/03/24 | 0 | 111 | 111 | 0 | 3 | 0 | 0 | 1 |
[41] shablogammarusshablensis Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[42] sowinskyamacrocera Last Modified in 03/03/24 | 12 | 102 | 102 | 0 | 0 | 0 | 0 | 1 |
[43] spirogammarusmajor Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[44] yogmelinabrachyura Last Modified in 03/03/24 | 7 | 107 | 107 | 0 | 0 | 0 | 0 | 1 |
[45] yogmelinalaeviuscula Last Modified in 03/03/24 | 7 | 107 | 107 | 0 | 0 | 0 | 0 | 1 |
[46] yogmelinalimana Last Modified in 03/03/24 | 2 | 112 | 112 | 0 | 0 | 0 | 0 | 1 |
[47] yogmelinapusilla Last Modified in 03/03/24 | 2 | 112 | 112 | 0 | 0 | 0 | 0 | 1 |
[48] iphigenellaacanthopoda Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[49] compactogammaruscompactus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[50] niphargogammarusaequimanus Last Modified in 03/03/24 | 6 | 108 | 108 | 0 | 0 | 0 | 0 | 1 |
[51] niphargogammarusborodini Last Modified in 03/03/24 | 6 | 108 | 108 | 0 | 0 | 0 | 0 | 1 |
[52] niphargogammarusintermedius Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[53] niphargogammarusquadrimanus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[54] niphargoidesboltovskoyi Last Modified in 03/03/24 | 5 | 109 | 109 | 0 | 0 | 0 | 0 | 1 |
[55] niphargoidescaspius Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[56] niphargoidescorpulentus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[57] niphargoidesgrimmi Last Modified in 03/03/24 | 3 | 111 | 111 | 0 | 0 | 0 | 0 | 1 |
[58] obesogammarusacuminatus Last Modified in 03/03/24 | 1 | 113 | 113 | 0 | 0 | 0 | 0 | 1 |
[59] obesogammarusboeoticus Last Modified in 03/03/24 | 0 | 113 | 113 | 0 | 1 | 0 | 0 | 1 |
[60] obesogammaruscrassus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[61] obesogammarusobesus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[62] obesogammarusplatycheir Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[63] obesogammarussubnudus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[64] pandoritespodoceroides Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[65] paraniphargoidesderzhavini Last Modified in 03/03/24 | 7 | 107 | 107 | 0 | 0 | 0 | 0 | 1 |
[66] paraniphargoidesmotasi Last Modified in 03/03/24 | 1 | 113 | 113 | 0 | 0 | 0 | 0 | 1 |
[67] pontogammarusabbreviatus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[68] pontogammarusaestuarius Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[69] pontogammarusborceae Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[70] pontogammarusrobustoides Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[71] pontogammarussetosus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[72] pontogammarusmaeoticus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[73] pontogammarussarsi Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[74] pontogammarusweidemanni Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[75] stenogammaruscompressus Last Modified in 03/03/24 | 12 | 102 | 102 | 0 | 0 | 0 | 0 | 1 |
[76] stenogammaruscompressosimilis Last Modified in 03/03/24 | 3 | 111 | 111 | 0 | 0 | 0 | 0 | 1 |
[77] stenogammarusdeminutus Last Modified in 03/03/24 | 8 | 106 | 106 | 0 | 0 | 0 | 0 | 1 |
[78] stenogammarusmacrurus Last Modified in 03/03/24 | 1 | 113 | 113 | 0 | 0 | 0 | 0 | 1 |
[79] stenogammarusmicrurus Last Modified in 03/03/24 | 11 | 103 | 103 | 0 | 0 | 0 | 0 | 1 |
[80] stenogammarussimilis Last Modified in 03/03/24 | 8 | 106 | 106 | 0 | 0 | 0 | 0 | 1 |
[81] turcogammarusaralensis Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[82] turcogammarusspandli Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[83] turcogammarusturcarum Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[84] uroniphargoidesspinicaudatus Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[85] wolgagammarusdzjubani Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
[86] † andrussoviabogacevi Last Modified in 03/19/24 | 55 | 59 | 59 | 0 | 0 | 0 | 0 | 1 |
[87] † andrussoviasokolovi Last Modified in 03/19/24 | 55 | 59 | 59 | 0 | 0 | 0 | 0 | 1 |
[88] † andrussoviavassoievitschi Last Modified in 03/19/24 | 55 | 59 | 59 | 0 | 0 | 0 | 0 | 1 |
[89] † praegmelinaandrussovi Last Modified in 03/19/24 | 56 | 58 | 58 | 0 | 0 | 0 | 0 | 1 |
[90] † praegmelinaarchangelskii Last Modified in 03/19/24 | 56 | 58 | 58 | 0 | 0 | 0 | 0 | 1 |
[91] † eogmelinamoldavica Last Modified in 03/19/24 | 55 | 59 | 59 | 0 | 0 | 0 | 0 | 1 |
[92] † eogmelinaprisca Last Modified in 03/19/24 | 59 | 55 | 55 | 0 | 0 | 0 | 0 | 1 |
[93] pectenogammarusolivii Last Modified in 03/03/24 | 0 | 114 | 114 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 1134 | |
Project overview | 86 | |
Media views | 190 | Media search (165 views); M902676 (25 views); |
Matrix views | 62 | Matrix landing page (55 views); Ponto-Caspian gammaroidean Amphipoda (7 views); |
Views for media list | 59 | |
Specimen list | 87 | |
Taxon list | 613 | |
Bibliography | 35 | |
Documents list | 2 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 1 | |
Matrix downloads | 1 | Ponto-Caspian gammaroidean Amphipoda (1 download); |