Project 3996: A. W. Bronson, A. Pradel, J. S. Denton, J. G. Maisey. 2024. A new operculate symmoriiform chondrichthyan from the Late Mississippian Fayetteville Shale (Arkansas, United States). Geodiversitas. 46 (4):101-117.
Abstract
We describe a new genus of symmoriiform chondrichthyan from the Late Mississippian Fayetteville Shale of Arkansas, USA and include this fossil in a phylogenetic analysis of chondrichthyans. This taxon possesses elongate cartilaginous rays extending from the gill arches, forming an operculate structure that covers at least two of the branchial arches farther posteriorly. Although presence of a ‘hyoid operculum’ has been postulated in at least two unrelated Paleozoic sharks (e.g., Triodus,Tristychius), subsequent investigations failed to corroborate those claims. The new fossil therefore provides the first evidence of an endoskeletal operculum formed by elongate, fused pharyngeal arch rays in a chondrichthyan.Read the article »
Article DOI: 10.5252/geodiversitas2024v46a4
Project DOI: 10.7934/P3996, http://dx.doi.org/10.7934/P3996
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 6193 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 222 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 500 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:222/0 |
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MorphoBank Project 3996
MorphoBank Project 3996
- Creation Date:
02 May 2021 - Publication Date:
07 March 2024 - Project views: 1065
- Media downloads: 1
Authors' Institutions
- Muséum national d'Histoire naturelle, Paris (Natural History Museum, Paris)
- American Museum of Natural History
- Florida Museum of Natural History
- California State Polytechnic University, Humboldt
Members
member name | taxa | specimens | media | media notes | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||||||||
Allison Bronson Project Administrator | 48 | 1 | 1 | 0 | 222 | 0 | 0 | 0 | 0 | 6193 (6173, 0, 20) | 0 | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M28783' (48 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Acanthodes Last Modified in 03/07/24 | 38 | 183 | 183 | 0 | 1 | 0 | 0 | 1 |
[2] † Acronemus Last Modified in 03/07/24 | 95 | 128 | 127 | 0 | 0 | 0 | 0 | 1 |
[3] † Akmonistion Last Modified in 03/07/24 | 49 | 173 | 173 | 0 | 0 | 0 | 0 | 1 |
[4] † Antarctilamna Last Modified in 03/07/24 | 144 | 78 | 78 | 0 | 0 | 0 | 0 | 1 |
[5] Callorhinchus Last Modified in 05/30/22 | 27 | 194 | 194 | 0 | 1 | 0 | 0 | 1 |
[6] † Carcharopsis Last Modified in 03/07/24 | 140 | 82 | 82 | 0 | 0 | 0 | 0 | 1 |
[7] † Chondrenchelys Last Modified in 03/07/24 | 95 | 128 | 127 | 0 | 0 | 0 | 0 | 1 |
[8] † Cladodoides Last Modified in 03/07/24 | 104 | 118 | 118 | 0 | 0 | 0 | 0 | 1 |
[9] † Cladoselache Last Modified in 03/07/24 | 77 | 145 | 145 | 0 | 0 | 0 | 0 | 1 |
[10] † Climatius Last Modified in 03/07/24 | 137 | 85 | 85 | 0 | 0 | 0 | 0 | 1 |
[11] † Cobelodus Last Modified in 03/07/24 | 74 | 148 | 148 | 0 | 0 | 0 | 0 | 1 |
[12] † Cosmoselachus Last Modified in 03/07/24 | 136 | 86 | 86 | 0 | 0 | 0 | 0 | 1 |
[13] † Cowralepis Last Modified in 03/07/24 | 156 | 66 | 66 | 0 | 0 | 0 | 0 | 1 |
[14] † Debeerius Last Modified in 03/07/24 | 64 | 157 | 157 | 0 | 1 | 0 | 0 | 1 |
[15] † Dicksonosteus Last Modified in 03/07/24 | 82 | 139 | 139 | 0 | 1 | 0 | 0 | 1 |
[16] † Doliodus Last Modified in 03/07/24 | 102 | 120 | 120 | 0 | 0 | 0 | 0 | 1 |
[17] † Dwykaselachus Last Modified in 03/07/24 | 125 | 97 | 97 | 0 | 0 | 0 | 0 | 1 |
[18] † Egertonodus Last Modified in 03/07/24 | 21 | 201 | 201 | 0 | 0 | 0 | 0 | 1 |
[19] † Entelognathus Last Modified in 03/07/24 | 134 | 87 | 87 | 0 | 1 | 0 | 0 | 1 |
[20] † Ferromirum Last Modified in 03/07/24 | 106 | 101 | 101 | 0 | 15 | 0 | 0 | 1 |
[21] † Gladbachus Last Modified in 03/07/24 | 91 | 131 | 131 | 0 | 0 | 0 | 0 | 1 |
[22] † Guiyu Last Modified in 03/07/24 | 119 | 103 | 103 | 0 | 0 | 0 | 0 | 1 |
[23] † Gydoselache Last Modified in 03/07/24 | 114 | 108 | 108 | 0 | 0 | 0 | 0 | 1 |
[24] † Gyracanthides Last Modified in 03/07/24 | 170 | 52 | 52 | 0 | 0 | 0 | 0 | 1 |
[25] † Hamiltonichthys Last Modified in 03/07/24 | 88 | 134 | 134 | 0 | 0 | 0 | 0 | 1 |
[26] † Helodus Last Modified in 03/07/24 | 70 | 153 | 152 | 0 | 0 | 0 | 0 | 1 |
[27] † Iniopera Last Modified in 03/07/24 | 51 | 171 | 171 | 0 | 0 | 0 | 0 | 1 |
[28] † Ischnacanthus Last Modified in 03/07/24 | 132 | 90 | 90 | 0 | 0 | 0 | 0 | 1 |
[29] † Janusiscus Last Modified in 03/07/24 | 155 | 67 | 67 | 0 | 0 | 0 | 0 | 1 |
[30] † Kawichthys Last Modified in 03/07/24 | 136 | 86 | 86 | 0 | 0 | 0 | 0 | 1 |
[31] † Ligulalepis Last Modified in 03/07/24 | 145 | 77 | 77 | 0 | 0 | 0 | 0 | 1 |
[32] † Lupopsyrus Last Modified in 03/07/24 | 153 | 69 | 69 | 0 | 0 | 0 | 0 | 1 |
[33] † Mimipiscis Last Modified in 03/07/24 | 30 | 192 | 192 | 0 | 0 | 0 | 0 | 1 |
[34] Notorynchus Last Modified in 05/30/22 | 29 | 193 | 193 | 0 | 0 | 0 | 0 | 1 |
[35] † Onychoselache Last Modified in 03/07/24 | 117 | 105 | 105 | 0 | 0 | 0 | 0 | 1 |
[36] † Orthacanthus Last Modified in 03/07/24 | 33 | 189 | 189 | 0 | 0 | 0 | 0 | 1 |
[37] † Ozarcus Last Modified in 03/07/24 | 68 | 154 | 154 | 0 | 0 | 0 | 0 | 1 |
[38] † Phoebodus Last Modified in 03/07/24 | 84 | 138 | 138 | 0 | 0 | 0 | 0 | 1 |
[39] † Psarolepis Last Modified in 03/07/24 | 112 | 110 | 110 | 0 | 0 | 0 | 0 | 1 |
[40] † Ptomacanthus Last Modified in 03/07/24 | 120 | 102 | 102 | 0 | 0 | 0 | 0 | 1 |
[41] † Pucapampella Last Modified in 03/07/24 | 110 | 112 | 112 | 0 | 0 | 0 | 0 | 1 |
[42] † Ramirosuarezia Last Modified in 03/07/24 | 155 | 67 | 67 | 0 | 0 | 0 | 0 | 1 |
[43] Scyliorhinus Last Modified in 05/30/22 | 28 | 194 | 194 | 0 | 0 | 0 | 0 | 1 |
[44] Squalus Last Modified in 05/30/22 | 15 | 207 | 207 | 0 | 0 | 0 | 0 | 1 |
[45] † Synechodus Last Modified in 03/07/24 | 100 | 122 | 122 | 0 | 0 | 0 | 0 | 1 |
[46] † Tamiobatis Last Modified in 03/07/24 | 83 | 139 | 139 | 0 | 0 | 0 | 0 | 1 |
[47] † Tribodus Last Modified in 03/07/24 | 27 | 196 | 195 | 0 | 0 | 0 | 0 | 1 |
[48] † Tristychius Last Modified in 03/07/24 | 26 | 196 | 196 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 1065 | |
Project overview | 75 | |
Bibliography | 35 | |
Documents list | 45 | |
Media views | 187 | Media search (159 views); M902539 (28 views); |
Matrix views | 53 | Matrix landing page (49 views); Matrix from "A new operculate symmoriiform chondrichthyan from the Late Mississippian Fayetteville Shale (Arkansas, USA)" (May 2022) (4 views); |
Taxon list | 529 | |
Specimen list | 92 | |
Views for media list | 49 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 4 | |
Project downloads | 3 | |
Media downloads | 1 | M902539 (1 download); |