Project 4806: V. Dupret. 2004. The phylogenetic relationships between actinolepids (Placodermi: Arthrodira) and other arthrodires (phlyctaeniids and brachythoracids). Fossils and Strata. 50:44-55.
Specimen: † Buchanosteus confertituberculatus (unvouchered)
View: whole specimen (fossil)
View: whole specimen (fossil)
Abstract
The phylogenetic relationships between actinolepids (Placodermi, Arthrodira) and other arthrodires (Phlyctaenii and Brachythoraci) are re-evaluated in connection with a study in progress on some Podolian and Spitsbergen actinolepid material. The species Kujdanowiaspis podolica (Brotzen, 1934) is briefly redescribed, and its characters discussed in relation to a recent cladistic analysis of the actinolepids. An enlarged phylogenetic analysis using a data matrix of 55 characters for 31 taxa reveals that the actinolepids may be a paraphyletic group; their taxonomic and nomenclatural status is briefly discussed. Within the actinolepids, the genus Kujdanowiaspis does not have the basal position proposed by previous authors. A proposed new phylogeny shows Wuttagoonaspis as the sister group to all other arthrodires, and the Phyllolepida as the sister group to the Phlyctaenioidei (Phlyctaenii plus Brachythoraci).Read the article »
Article DOI: 10.18261/9781405169868-2004-04
Project DOI: 10.7934/P4806, http://dx.doi.org/10.7934/P4806
| This project contains | Matrices |
|---|---|
Download Project SDD File  | Total scored cells: 1430 Total media associated with cells: 0 Total labels associated with cell media: 0 |
| Characters | |
| Total characters: 55 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 113 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:55/0 |
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MorphoBank Project 4806
MorphoBank Project 4806
- Creation Date:
02 August 2023 - Publication Date:
04 September 2023
Authors' Institutions
- Muséum national d'Histoire naturelle, Paris (Natural History Museum, Paris)
Members
| member name | taxa |
specimens |
media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
| Shreya Jariwala Project Administrator | 31 | 2 | 2 | 55 | 0 | 0 | 1430 (1338, 0, 92) | 0 | 0 | 0 | ||||
Taxonomic Overview for Matrix 'M29413' (31 Taxa)
| taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
| [1] † Antineosteus lehmani Taxon name last Modified on 08/02/23 | 7 | 47 | 47 | 0 | 1 | 0 | 0 | 1 |
| [2] † Buchanosteus confertituberculatus Taxon name last Modified on 08/02/23 | 10 | 44 | 44 | 0 | 1 | 0 | 0 | 1 |
| [3] † Coccosteus cuspidatus Taxon name last Modified on 08/02/23 | 6 | 48 | 48 | 0 | 1 | 0 | 0 | 1 |
| [4] † Arctolepis decipiens Taxon name last Modified on 08/02/23 | 0 | 55 | 54 | 0 | 1 | 0 | 0 | 1 |
| [5] † Dicksonosteus arcticus Taxon name last Modified on 08/02/23 | 1 | 53 | 53 | 0 | 1 | 0 | 0 | 1 |
| [6] † Groenlandaspis antarcticus Taxon name last Modified on 08/02/23 | 6 | 48 | 48 | 0 | 1 | 0 | 0 | 1 |
| [7] † Heintzoteus brevis Taxon name last Modified on 08/02/23 | 2 | 53 | 53 | 0 | 0 | 0 | 0 | 1 |
| [8] † Tiaraspis subtilis Taxon name last Modified on 08/02/23 | 12 | 42 | 42 | 0 | 1 | 0 | 0 | 1 |
| [9] † Actinolepis magna Taxon name last Modified on 08/02/23 | 7 | 47 | 47 | 0 | 1 | 0 | 0 | 1 |
| [10] † Actinolepis spinosa Taxon name last Modified on 08/02/23 | 23 | 31 | 31 | 0 | 1 | 0 | 0 | 1 |
| [11] † Actinolepis tuberculata Taxon name last Modified on 08/02/23 | 14 | 40 | 40 | 0 | 1 | 0 | 0 | 1 |
| [12] † Aethaspis major Taxon name last Modified on 08/02/23 | 6 | 47 | 47 | 0 | 2 | 0 | 0 | 1 |
| [13] † Aethaspis utahensis Taxon name last Modified on 08/02/23 | 16 | 37 | 37 | 0 | 2 | 0 | 0 | 1 |
| [14] † Aleosteus eganensis Taxon name last Modified on 08/02/23 | 10 | 44 | 44 | 0 | 1 | 0 | 0 | 1 |
| [15] † Anarthraspis sp. Taxon name last Modified on 08/02/23 | 7 | 47 | 47 | 0 | 1 | 0 | 0 | 1 |
| [16] † Baringaspis dineleyi Taxon name last Modified on 08/02/23 | 6 | 49 | 48 | 0 | 1 | 0 | 0 | 1 |
| [17] † Bollandaspis woschmidti Taxon name last Modified on 08/02/23 | 35 | 18 | 18 | 0 | 2 | 0 | 0 | 1 |
| [18] † Bryantolepis brachycephala Taxon name last Modified on 08/02/23 | 7 | 46 | 46 | 0 | 2 | 0 | 0 | 1 |
| [19] † Eskimaspis heintzi Taxon name last Modified on 08/02/23 | 8 | 47 | 46 | 0 | 1 | 0 | 0 | 1 |
| [20] † Heightingtonaspis anglica Taxon name last Modified on 08/02/23 | 9 | 45 | 45 | 0 | 1 | 0 | 0 | 1 |
| [21] † Kujdanowiaspis buczacziensis Taxon name last Modified on 08/02/23 | 2 | 51 | 51 | 0 | 2 | 0 | 0 | 1 |
| [22] † Kujdanowiaspis podolica Taxon name last Modified on 08/02/23 | 2 | 51 | 51 | 0 | 2 | 0 | 0 | 1 |
| [23] † Proaethaspis ohioensis Taxon name last Modified on 08/02/23 | 11 | 41 | 41 | 0 | 3 | 0 | 0 | 1 |
| [24] † Sigaspis lepidophora Taxon name last Modified on 08/02/23 | 19 | 35 | 35 | 0 | 1 | 0 | 0 | 1 |
| [25] † Simblaspis cachensis Taxon name last Modified on 08/02/23 | 12 | 42 | 42 | 0 | 1 | 0 | 0 | 1 |
| [26] † Phyllolepis orvini Taxon name last Modified on 08/02/23 | 6 | 32 | 32 | 0 | 17 | 0 | 0 | 1 |
| [27] † Placolepis budawangensis Taxon name last Modified on 08/02/23 | 6 | 33 | 33 | 0 | 16 | 0 | 0 | 1 |
| [28] † Austraphyllolepis sp. Taxon name last Modified on 08/02/23 | 6 | 33 | 33 | 0 | 16 | 0 | 0 | 1 |
| [29] † Wuttagoonaspis fletcheri Taxon name last Modified on 08/02/23 | 16 | 37 | 36 | 0 | 3 | 0 | 0 | 1 |
| [30] † Lunaspis broilii Taxon name last Modified on 08/02/23 | 3 | 48 | 47 | 0 | 5 | 0 | 0 | 1 |
| [31] † Eurycaraspis incilis Taxon name last Modified on 08/02/23 | 6 | 47 | 46 | 0 | 3 | 0 | 0 | 1 |