Project 4910: M. Zhu, X. Yu, P. E. Ahlberg. 2001. A primitive sarcopterygian fish with an eyestalk. Nature. 410 (6824):81-84.
Abstract
The discovery of two Early Devonian osteichthyan (bony fish) fossils has challenged established ideas about the origin of osteichthyans and their divergence into actinopterygians (teleosts and their relatives) and sarcopterygians (tetrapods, coelacanths, lungfishes and related groups). Psarolepis from China and an unnamed braincase from Australia combine derived sarcopterygian and actinopterygian characters with primitive features previously restricted to non-osteichthyans, suggesting that early osteichthyan evolution may have involved substantial parallellism between sarcopterygians and actinopterygians. But interpretation of these fossils has been hampered by poor phylogenetic resolution. Here we describe a basal sarcopterygian fish, Achoania gen, et sp. nov., that fills the morphological gap between Psarolepis and higher sarcoptergyians. We also report the presence of eyestalk attachments in both Achoania and Psarolepis, showing that this supposedly non-osteichthyan feature occurs in basal sarcopterygians as well as the actinoptergyian-like Australian braincase.Read the article »
Article DOI: 10.1038/35065078
Project DOI: 10.7934/P4910, http://dx.doi.org/10.7934/P4910
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 2809 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 160 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 363 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:160/0 |
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MorphoBank Project 4910
MorphoBank Project 4910
- Creation Date:
05 October 2023 - Publication Date:
23 November 2023 - Project views: 2149
Authors' Institutions
- Natural History Museum, London
- Chinese Academy of Sciences
- Kean University
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Shreya Jariwala Project Administrator | 26 | 8 | 8 | 160 | 0 | 0 | 2809 (2809, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29513' (26 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Achoania Last Modified in 10/17/23 | 116 | 44 | 44 | 0 | 0 | 0 | 0 | 1 |
[2] † Diabolepis Last Modified in 10/17/23 | 75 | 85 | 85 | 0 | 0 | 0 | 0 | 1 |
[3] † Diplocercides Last Modified in 10/17/23 | 39 | 121 | 121 | 0 | 0 | 0 | 0 | 1 |
[4] † Dipnorhynchus Last Modified in 10/17/23 | 71 | 89 | 89 | 0 | 0 | 0 | 0 | 1 |
[5] † Dipterus Last Modified in 10/17/23 | 37 | 123 | 123 | 0 | 0 | 0 | 0 | 1 |
[6] † Eusthenopteron Last Modified in 10/17/23 | 9 | 151 | 151 | 0 | 0 | 0 | 0 | 1 |
[7] † Glyptolepis Last Modified in 10/17/23 | 9 | 151 | 151 | 0 | 0 | 0 | 0 | 1 |
[8] † Ichthyostega Last Modified in 10/17/23 | 34 | 126 | 126 | 0 | 0 | 0 | 0 | 1 |
[9] † Kenichthys Last Modified in 10/17/23 | 35 | 125 | 125 | 0 | 0 | 0 | 0 | 1 |
[10] † Miguashaia Last Modified in 10/17/23 | 69 | 91 | 91 | 0 | 0 | 0 | 0 | 1 |
[11] † Onychodus Last Modified in 10/17/23 | 37 | 123 | 123 | 0 | 0 | 0 | 0 | 1 |
[12] † Osteolepis Last Modified in 10/17/23 | 23 | 137 | 137 | 0 | 0 | 0 | 0 | 1 |
[13] † Panderichthys Last Modified in 10/17/23 | 18 | 142 | 142 | 0 | 0 | 0 | 0 | 1 |
[14] † Porolepis Last Modified in 10/17/23 | 18 | 142 | 142 | 0 | 0 | 0 | 0 | 1 |
[15] † Powichthys Last Modified in 10/17/23 | 29 | 131 | 131 | 0 | 0 | 0 | 0 | 1 |
[16] † Psarolepis Last Modified in 10/17/23 | 43 | 117 | 117 | 0 | 0 | 0 | 0 | 1 |
[17] † Speonesydrion Last Modified in 10/17/23 | 80 | 80 | 80 | 0 | 0 | 0 | 0 | 1 |
[18] † Uranolophus Last Modified in 10/17/23 | 54 | 106 | 106 | 0 | 0 | 0 | 0 | 1 |
[19] † Youngolepis Last Modified in 10/17/23 | 30 | 130 | 130 | 0 | 0 | 0 | 0 | 1 |
[20] † Acanthodes Last Modified in 10/17/23 | 103 | 57 | 57 | 0 | 0 | 0 | 0 | 1 |
[21] † Ctenacanthus Last Modified in 10/17/23 | 104 | 56 | 56 | 0 | 0 | 0 | 0 | 1 |
[22] † Dicksonosteus Last Modified in 10/17/23 | 96 | 64 | 64 | 0 | 0 | 0 | 0 | 1 |
[23] † Cheirolepis Last Modified in 10/17/23 | 54 | 106 | 106 | 0 | 0 | 0 | 0 | 1 |
[24] † ? ligulalepsis <AMF 101607> Last Modified in 10/17/23 | 139 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[25] † Mimia Last Modified in 10/17/23 | 13 | 147 | 147 | 0 | 0 | 0 | 0 | 1 |
[26] † Moythomasia Last Modified in 10/17/23 | 16 | 144 | 144 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 2149 | |
Project overview | 96 | |
Matrix views | 67 | Matrix landing page (63 views); Zhu et al 2011 (4 views); |
Media views | 590 | Media search (233 views); M894977 (44 views); M894978 (46 views); M894979 (44 views); M894980 (46 views); M894981 (45 views); M894982 (42 views); M894983 (47 views); M894984 (43 views); |
Documents list | 66 | |
Bibliography | 53 | |
Views for media list | 82 | |
Specimen list | 533 | |
Taxon list | 662 |