Morphobank

Project 4868: S. Giles, L. Darras, G. Clement, A. Blieck, M. Friedman. 2015. An exceptionally preserved Late Devonian actinopterygian provides a new model for primitive cranial anatomy in ray-finned fishes. Proceedings of the Royal Society B: Biological Sciences. 282 (1816):20151485.

Specimen: † Cheirolepis trailli (unvouchered)
View: fossil view

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Abstract

Actinopterygians (ray-finned fishes) are the most diverse living osteichthyan (bony vertebrate) group, with a rich fossil record. However, details of their earliest history during the middle Palaeozoic (Devonian) 'Age of Fishes' remains sketchy. This stems from an uneven understanding of anatomy in early actinopterygians, with a few well-known species dominating perceptions of primitive conditions. Here we present an exceptionally preserved ray-finned fish from the Late Devonian (Middle Frasnian, ca 373 Ma) of Pas-de-Calais, northern France. This new genus is represented by a single, three-dimensionally preserved skull. CT scanning reveals the presence of an almost complete braincase along with near-fully articulated mandibular, hyoid and gill arches. The neurocranium differs from the coeval Mimipiscis in displaying a short aortic canal with a distinct posterior notch, long grooves for the lateral dorsal aortae, large vestibular fontanelles and a broad postorbi-tal process. Identification of similar but previously unrecognized features in other Devonian actinopterygians suggests that aspects of braincase anatomy in Mimipiscis are apomorphic, questioning its ubiquity as stand-in for generalized actinopterygian conditions. However, the gill skeleton of the new form broadly corresponds to that of Mimipiscis, and adds to an emerging picture of primitive branchial architecture in crown gnathostomes. The new genus is recovered in a polytomy with Mimiidae and a subset of Devonian and stra-tigraphically younger actinopterygians, with no support found for a monophyletic grouping of Moythomasia with Mimiidae.

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Article DOI: 10.1098/rspb.2015.1485

Project DOI: 10.7934/P4868, http://dx.doi.org/10.7934/P4868

This project contains	Matrices
3 Media 1 Matrix 1 Document 52 Taxa 3 Specimens 183 Characters Total size of project's media files: 22.43M Download Project SDD File	Total scored cells: 5155 Total media associated with cells: 0 Total labels associated with cell media: 0
	Characters
	Total characters: 183 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 379 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:177/6

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MorphoBank Project 4868

Creation Date:
04 September 2023
Publication Date:
04 September 2023
Media downloads: 2
Matrix downloads: 1

Authors' Institutions

Muséum national d'Histoire naturelle, Paris (Natural History Museum, Paris)

Centre National de la Recherche Scientifique (CNRS)

University of Oxford

Universite de Lille

Université Pierre et Marie Curie, UPMC, Paris VI (Pierre and Marie Curie University)

Sorbonne Université

Members

Shreya Jariwala
Project Administrator

183

5155
(4847, 0, 308)

Taxonomic Overview for Matrix 'M29473' (52 Taxa)

taxon	unscored cells	scored cells	no cell support	NPA cells	"-" cells	cell images	labels on cell images	member access
[1] † "Ligulalepis" Taxon name last Modified on 09/04/23	136	41	41	0	6	0	0	1
[2] † Dialipina salguerioensis Taxon name last Modified on 09/04/23	122	55	55	0	6	0	0	1
[3] † Boreosomus piveteaui Taxon name last Modified on 09/04/23	21	158	156	0	6	0	0	1
[4] † Cheirolepis canadensis Taxon name last Modified on 09/04/23	82	98	97	0	4	0	0	1
[5] † Cheirolepis schultzei Taxon name last Modified on 09/04/23	103	75	75	0	5	0	0	1
[6] † Cheirolepis trailli Taxon name last Modified on 09/04/23	30	150	149	0	4	0	0	1
[7] † Coccocephalichthys wildi Taxon name last Modified on 09/04/23	82	95	95	0	6	0	0	1
[8] † Cosmoptychius striatus Taxon name last Modified on 09/04/23	111	69	69	0	3	0	0	1
[9] † Cuneognathus gardineri Taxon name last Modified on 09/04/23	112	67	67	0	4	0	0	1
[10] † Donnrosenia schaefferi Taxon name last Modified on 09/04/23	95	86	86	0	2	0	0	1
[11] † Gogosardina coatesi Taxon name last Modified on 09/04/23	66	115	115	0	2	0	0	1
[12] † Howqualepis rostridens Taxon name last Modified on 09/04/23	51	127	127	0	5	0	0	1
[13] † Kansasiella eatoni Taxon name last Modified on 09/04/23	109	69	69	0	5	0	0	1
[14] † Kentuckia deani Taxon name last Modified on 09/04/23	65	115	114	0	4	0	0	1
[15] † Kentuckia hlavini Taxon name last Modified on 09/04/23	112	69	69	0	2	0	0	1
[16] † Krasnoyarichthys jesseni Taxon name last Modified on 09/04/23	136	46	46	0	1	0	0	1
[17] † Lawrenciella schaefferi Taxon name last Modified on 09/04/23	130	52	52	0	1	0	0	1
[18] † Luederia kempi Taxon name last Modified on 09/04/23	151	32	31	0	0	0	0	1
[19] † Limnomis delayni Taxon name last Modified on 09/04/23	104	75	75	0	4	0	0	1
[20] † Mansfieldiscus sweeti Taxon name last Modified on 09/04/23	85	93	93	0	5	0	0	1
[21] † Melanecta anneae Taxon name last Modified on 09/04/23	105	74	74	0	4	0	0	1
[22] † Mesopoma planti Taxon name last Modified on 09/04/23	95	84	83	0	5	0	0	1
[23] † Mimipiscis bartrami Taxon name last Modified on 09/04/23	28	153	153	0	2	0	0	1
[24] † Mimipiscis toombsi Taxon name last Modified on 09/04/23	4	178	177	0	2	0	0	1
[25] † Moythomasia durgaringa Taxon name last Modified on 09/04/23	16	165	165	0	2	0	0	1
[26] † Moythomasia nitida Taxon name last Modified on 09/04/23	82	99	99	0	2	0	0	1
[27] † Moythomasia lineata Taxon name last Modified on 09/04/23	77	104	104	0	2	0	0	1
[28] † Moythomasia perforata Taxon name last Modified on 09/04/23	163	19	19	0	1	0	0	1
[29] † Novagonatodus kasantsevae Taxon name last Modified on 09/04/23	101	76	76	0	6	0	0	1
[30] † Osorioichthys marginis Taxon name last Modified on 09/04/23	87	95	95	0	1	0	0	1
[31] † Pteronisculus stensioi Taxon name last Modified on 09/04/23	16	162	162	0	5	0	0	1
[32] † Raynerius splendens Taxon name last Modified on 09/04/23	61	120	120	0	2	0	0	1
[33] † Stegotrachelus finlayi Taxon name last Modified on 09/04/23	93	88	88	0	2	0	0	1
[34] † Tegeolepis clarki Taxon name last Modified on 09/04/23	102	80	80	0	1	0	0	1
[35] † Wendichthys dicksoni Taxon name last Modified on 09/04/23	82	99	98	0	3	0	0	1
[36] † Woodichthys bearsdeni Taxon name last Modified on 09/04/23	60	122	122	0	1	0	0	1
[37] † Diplocercides kayseri Taxon name last Modified on 09/04/23	65	96	96	0	22	0	0	1
[38] † Eusthenopteron foordi Taxon name last Modified on 09/04/23	4	161	161	0	18	0	0	1
[39] † Glyptolepis groenlandica Taxon name last Modified on 09/04/23	58	115	115	0	10	0	0	1
[40] † Gogonasus andrewsae Taxon name last Modified on 09/04/23	27	141	141	0	15	0	0	1
[41] † Guiyu oneiros Taxon name last Modified on 09/04/23	69	110	110	0	4	0	0	1
[42] † Meemannia eos Taxon name last Modified on 09/04/23	154	26	25	0	4	0	0	1
[43] † Miguashaia bureaui Taxon name last Modified on 09/04/23	78	91	91	0	14	0	0	1
[44] † Onychodus jandemarrai Taxon name last Modified on 09/04/23	35	134	134	0	14	0	0	1
[45] † Osteolepis macrolepidotus Taxon name last Modified on 09/04/23	77	101	101	0	5	0	0	1
[46] † Porolepis sp. Taxon name last Modified on 09/04/23	33	139	139	0	11	0	0	1
[47] † Psarolepis romeri Taxon name last Modified on 09/04/23	93	85	85	0	5	0	0	1
[48] † Styloichthys changae Taxon name last Modified on 09/04/23	121	56	56	0	6	0	0	1
[49] † Acanthodes bronni Taxon name last Modified on 09/04/23	104	58	58	0	21	0	0	1
[50] † Cladodoides wildungensis Taxon name last Modified on 09/04/23	125	40	40	0	18	0	0	1
[51] † Ozarcus mapesae Taxon name last Modified on 09/04/23	139	31	31	0	13	0	0	1
[52] † Entelognathus primordialis Taxon name last Modified on 09/04/23	113	58	58	0	12	0	0	1

Project downloads

type	number of downloads	Individual items downloaded (where applicable)
Total downloads from project	3
Media downloads	2	M894453 (2 downloads);
Matrix downloads	1	Giles et al 2015 (1 download);