Project 3211: A. López-Arbarello, T. Bürgin, H. Furrer, R. Stockar. 2019. Taxonomy and phylogeny of Eosemionotus Stolley, 1920 (Neopterygii: Ginglymodi) from the Middle Triassic of Europe. Palaeontologia Electronica. none:22.1.10.
Abstract
Over 80 years the actinopterygian genus Eosemionotus was known from a single species, E. vogeli, from the German Muschelkalk (Anisian). A second species was published in 2004, E. ceresiensis, from the upper Besano Formation (lowermost Ladinian) of Monte San Giorgio, Switzerland. New excellently preserved specimens recovered from the Cassina and Sceltrich beds (Meride Limestone; Ladinian) in this latter area, triggered a new study. Consequently, three new species are established: E. diskosomus, E. sceltrichensis, and E. minutus, including differential diagnoses for the five species, which differ in body proportions, relative position of the fins, the morphology of several skull bones, squamation pattern, and some meristic characters (e.g., number of premaxillary teeth, and branchiostegal rays). The cladistic analysis retrieved Eosemionotus as the oldest Macrosemiidae within the order Semionotiformes (Ginglymodi). The monophyly of the genus and its sister-group relationships with the other macrosemiids are among the best supported nodes with high Bremer, jackknife and bootstrap values, and numerous synapomorphies. The pattern of phylogenetic relationships between the five species of Eosemionotus indicates that the Muschelkalk species E. vogeli originated through dispersal from the Tethys into the Germanic Basin, most probably across the Silesian-Moravian or the East Carpathian gates before the late Anisian. This very speciose genus, so far almost restricted to the Middle Triassic, has also been reported from localities in Eastern Switzerland, the Netherlands, Spain, Slovenia, and China. Pending the taxonomic and phylogenetic study of these other material of Eosemionotus, the origin of the genus in the Western or Eastern Tethys remains enigmatic.Read the article »
Article DOI: 10.26879/904
Project DOI: 10.7934/P3211, http://dx.doi.org/10.7934/P3211
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 6624 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 192 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 622 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:181/11 |
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MorphoBank Project 3211
MorphoBank Project 3211
- Creation Date:
19 June 2018 - Publication Date:
06 March 2019 - Project views: 31352
- Matrix downloads: 13
Authors' Institutions
- Ludwig-Maximilians-Universitaet Muenchen
- University of Zurich (Universität Zürich)
- Naturmuseum, St.Gallen
- Museo Cantonale di Storia Naturale, Lugano
Members
member name | taxa | specimens | media | media notes | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||||||||||
Adriana Lopez-Arbarello Project Administrator | 50 | 11 | 23 | 0 | 192 | 0 | 121 | 0 | 0 | 6624 (6220, 0, 404) | 0 | 152 | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M25504' (50 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Watsonulus eugnathoides Last Modified in 03/06/19 | 33 | 144 | 144 | 0 | 15 | 0 | 0 | 1 |
[2] Amia calva Last Modified in 03/06/19 | 4 | 162 | 161 | 0 | 27 | 0 | 0 | 1 |
[3] † Araripelepidotes temnurus Last Modified in 03/06/19 | 52 | 132 | 124 | 0 | 8 | 0 | 0 | 1 |
[4] Atractosteus spatula Last Modified in 06/19/18 | 3 | 174 | 166 | 0 | 15 | 0 | 0 | 1 |
[5] † Callipurbeckia minor Last Modified in 03/06/19 | 40 | 149 | 143 | 0 | 3 | 0 | 0 | 1 |
[6] † Camerichthys lunae Last Modified in 03/06/19 | 120 | 70 | 70 | 0 | 2 | 0 | 0 | 1 |
[7] † Cuneatus cuneatus Last Modified in 03/06/19 | 44 | 134 | 129 | 0 | 14 | 0 | 0 | 1 |
[8] † Cuneatus wileyi Last Modified in 03/06/19 | 60 | 119 | 115 | 0 | 13 | 0 | 0 | 1 |
[9] † Dentilepisosteus laevis Last Modified in 03/06/19 | 36 | 149 | 149 | 0 | 7 | 0 | 0 | 1 |
[10] † Histionotus oberndorferi Last Modified in 03/06/19 | 78 | 103 | 102 | 0 | 11 | 0 | 0 | 1 |
[11] † Isanichthys lertboosi Last Modified in 03/06/19 | 65 | 125 | 124 | 0 | 2 | 0 | 0 | 1 |
[12] † Isanichthys palustris Last Modified in 03/06/19 | 110 | 81 | 81 | 0 | 1 | 0 | 0 | 1 |
[13] † Kyphosichthys grandei Last Modified in 03/06/19 | 56 | 133 | 95 | 0 | 3 | 0 | 0 | 1 |
[14] † Lepidotes gigas Last Modified in 03/06/19 | 29 | 162 | 150 | 0 | 2 | 0 | 0 | 1 |
[15] Lepisosteus osseus Last Modified in 03/06/19 | 4 | 175 | 170 | 0 | 14 | 0 | 0 | 1 |
[16] † Macrosemimimus fegerti Last Modified in 03/06/19 | 37 | 153 | 149 | 0 | 5 | 0 | 0 | 1 |
[17] † Macrosemius rostratus Last Modified in 03/06/19 | 25 | 149 | 149 | 0 | 18 | 0 | 0 | 1 |
[18] † Masillosteus janeae Last Modified in 03/06/19 | 44 | 135 | 129 | 0 | 13 | 0 | 0 | 1 |
[19] † Masillosteus kelleri Last Modified in 03/06/19 | 62 | 117 | 111 | 0 | 13 | 0 | 0 | 1 |
[20] † Neosemionotus puntanus Last Modified in 03/06/19 | 61 | 131 | 126 | 0 | 1 | 0 | 0 | 1 |
[21] † Notagogus denticulatos Last Modified in 03/06/19 | 101 | 81 | 81 | 0 | 10 | 0 | 0 | 1 |
[22] † Obaichthys decoratus Last Modified in 03/06/19 | 43 | 138 | 134 | 0 | 11 | 0 | 0 | 1 |
[23] † Occitanichthys canjuersensis Last Modified in 03/06/19 | 52 | 137 | 137 | 0 | 3 | 0 | 0 | 1 |
[24] † Paralepidotus ornatus Last Modified in 03/06/19 | 93 | 92 | 92 | 0 | 7 | 0 | 0 | 1 |
[25] † Pliodetes nigeriensis Last Modified in 03/06/19 | 81 | 110 | 110 | 0 | 1 | 0 | 0 | 1 |
[26] † Propterus elongatus Last Modified in 03/06/19 | 44 | 137 | 137 | 0 | 11 | 0 | 0 | 1 |
[27] † Sangiorgioichthys aldae Last Modified in 03/06/19 | 77 | 111 | 108 | 0 | 5 | 0 | 0 | 1 |
[28] † Sangiorgioichthys sui Last Modified in 03/06/19 | 40 | 149 | 137 | 0 | 6 | 0 | 0 | 1 |
[29] † Sangiorgioichthys valmarensis Last Modified in 03/06/19 | 107 | 85 | 84 | 0 | 1 | 0 | 0 | 1 |
[30] † Scheenstia mantelli Last Modified in 03/06/19 | 62 | 130 | 126 | 0 | 2 | 0 | 0 | 1 |
[31] † Scheenstia maximus Last Modified in 03/06/19 | 94 | 96 | 96 | 0 | 2 | 0 | 0 | 1 |
[32] † Scheenstia zappi Last Modified in 03/06/19 | 73 | 118 | 118 | 0 | 1 | 0 | 0 | 1 |
[33] † Semiolepis brembanus Last Modified in 03/06/19 | 85 | 104 | 103 | 0 | 4 | 0 | 0 | 1 |
[34] † Semionotus bergeri Last Modified in 03/06/19 | 84 | 104 | 104 | 0 | 4 | 0 | 0 | 1 |
[35] † Semionotus capensis Last Modified in 03/06/19 | 67 | 120 | 119 | 0 | 5 | 0 | 0 | 1 |
[36] † Semionotus elegans Last Modified in 03/06/19 | 23 | 163 | 162 | 0 | 6 | 0 | 0 | 1 |
[37] † Thaiichthys buddhabutrensis Last Modified in 03/06/19 | 49 | 141 | 141 | 0 | 2 | 0 | 0 | 1 |
[38] † Ticinolepis crassidens Last Modified in 03/06/19 | 47 | 141 | 137 | 0 | 5 | 0 | 0 | 1 |
[39] † Ticinolepis longaeva Last Modified in 03/06/19 | 28 | 161 | 160 | 0 | 4 | 0 | 0 | 1 |
[40] † Tlayuamichin itztli Last Modified in 03/06/19 | 45 | 145 | 144 | 0 | 3 | 0 | 0 | 1 |
[41] † Eosemionotus vogeli Last Modified in 03/06/19 | 63 | 115 | 111 | 0 | 15 | 0 | 0 | 1 |
[42] † Eosemionotus ceresiensis Last Modified in 03/06/19 | 71 | 108 | 106 | 0 | 14 | 0 | 0 | 1 |
[43] † Eosemionotus diskosomus Last Modified in 03/06/19 | 50 | 127 | 127 | 0 | 15 | 0 | 0 | 1 |
[44] † Eosemionotus sceltrichensis Last Modified in 03/06/19 | 63 | 109 | 109 | 0 | 20 | 0 | 0 | 1 |
[45] † Eosemionotus minutus Last Modified in 03/06/19 | 81 | 97 | 97 | 0 | 14 | 0 | 0 | 1 |
[46] † Macrosemius furneti Last Modified in 03/06/19 | 66 | 109 | 108 | 0 | 17 | 0 | 0 | 1 |
[47] † Paleomacrosemius thiollieri Last Modified in 03/06/19 | 74 | 101 | 100 | 0 | 17 | 0 | 0 | 1 |
[48] † Lophionotus sanjuanensis Last Modified in 03/06/19 | 76 | 113 | 109 | 0 | 4 | 0 | 0 | 1 |
[49] † Lophionotus chinleana Last Modified in 03/06/19 | 90 | 98 | 96 | 0 | 4 | 0 | 0 | 1 |
[50] † Lophionotus kanabensis Last Modified in 03/06/19 | 105 | 83 | 79 | 0 | 4 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 31352 | |
Project overview | 1412 | |
Matrix views | 1110 | Eosemionotus_Semionotiformes (127 views); Matrix landing page (983 views); |
Media views | 11406 | Media search (2579 views); M595407 (368 views); M595402 (367 views); M595319 (416 views); M595400 (405 views); M595405 (372 views); M595348 (393 views); M595338 (389 views); M595404 (383 views); M595401 (367 views); M595406 (386 views); M595329 (380 views); M595398 (383 views); M595331 (381 views); M595403 (393 views); M595326 (373 views); M595399 (363 views); M595324 (386 views); M595349 (397 views); M595408 (385 views); M595341 (386 views); M595347 (384 views); M595332 (384 views); M595325 (386 views); |
Views for media list | 3377 | |
Taxon list | 7452 | |
Documents list | 835 | |
Specimen list | 5120 | |
Bibliography | 640 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 197 | |
Project downloads | 184 | |
Matrix downloads | 13 | Eosemionotus_Semionotiformes (13 downloads); |