Project 3234: M. J. Hopkins. 2019. Phylogenetic analysis and revision of the trilobite subfamily Balnibarbiinae (Olenidae). American Museum Novitates. 3928:1-20.
Abstract
The Balnibarbiinae is one of eight subfamilies of the Olenidae, a diverse family of late Cambrian to Ordovician trilobites. Balnibarbiine species occur in a relatively continuous section of deeper-water sediments exposed along the northeastern coastline of Spitsbergen, Svalbard, as well as scattered deeper-water beds in central Nevada. Results of phylogenetic analyses of the subfamily using both parsimony and Bayesian methods are consistent with a previous hypothesis based on phyletic similarity and stratigraphic range. Cloacaspis Fortey, 1974, is supported as monophyletic, but the support for Balnibarbi Fortey, 1974, is weak, and the genus may be paraphyletic to Cloacaspis even with the reassignment of Balnibarbi ceryx Fortey, 1974, to Cloacaspis. New field collections and discovery of previously undescribed material in museum and survey collections provides the basis for emended descriptions of the genus Cloacaspis, as well as Cloacaspis tesselata Fortey and Droser, 1999, Cloacaspis ekphymosa Fortey, 1974, and Balnibarbi erugata Fortey, 1974, and expands the geographic range of the subfamily to Alaska.Read the article »
Article DOI: 10.1206/3928.1
Project DOI: 10.7934/P3234, http://dx.doi.org/10.7934/P3234
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 488 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 45 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 109 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:41/4 |
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MorphoBank Project 3234
MorphoBank Project 3234
- Creation Date:
26 July 2018 - Publication Date:
06 September 2019 - Matrix downloads: 7
Authors' Institutions
- American Museum of Natural History (AMNH)
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||||||||||
Melanie Hopkins Project Administrator | 13 | 1 | 1 | 45 | 0 | 16 | 0 | 0 | 488 (485, 0, 3) | 0 | 72 | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M25576' (13 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Parabolinella prolata Taxon name last Modified on 09/10/19 | 13 | 29 | 25 | 0 | 3 | 0 | 0 | 1 |
[2] † Parabolinella tumifrons Taxon name last Modified on 09/10/19 | 14 | 31 | 28 | 0 | 0 | 0 | 0 | 1 |
[3] † Cloacaspis senilis Taxon name last Modified on 09/10/19 | 1 | 44 | 33 | 0 | 0 | 0 | 0 | 1 |
[4] † Cloacaspis tesselata Taxon name last Modified on 09/10/19 | 4 | 41 | 36 | 0 | 0 | 0 | 0 | 1 |
[5] † Cloacaspis ekphymosa Taxon name last Modified on 09/10/19 | 11 | 34 | 28 | 0 | 0 | 0 | 0 | 1 |
[6] † Cloacaspis dejecta Taxon name last Modified on 09/10/19 | 6 | 39 | 31 | 0 | 0 | 0 | 0 | 1 |
[7] † Balnibarbi ceryx ceryx Taxon name last Modified on 09/10/19 | 2 | 43 | 39 | 0 | 0 | 0 | 0 | 1 |
[8] † Balnibarbi ceryx anataphra Taxon name last Modified on 09/10/19 | 12 | 33 | 29 | 0 | 0 | 0 | 0 | 1 |
[9] † Balnibarbi pulvurea Taxon name last Modified on 09/10/19 | 1 | 44 | 36 | 0 | 0 | 0 | 0 | 1 |
[10] † Balnibarbi tholia Taxon name last Modified on 09/10/19 | 12 | 33 | 28 | 0 | 0 | 0 | 0 | 1 |
[11] † Balnibarni erugata Taxon name last Modified on 09/10/19 | 3 | 42 | 38 | 0 | 0 | 0 | 0 | 1 |
[12] † Balnibarbi sombrero Taxon name last Modified on 09/10/19 | 15 | 30 | 27 | 0 | 0 | 0 | 0 | 1 |
[13] † Balnibarbi scimitar Taxon name last Modified on 09/10/19 | 3 | 42 | 36 | 0 | 0 | 0 | 0 | 1 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 170 | |
Project downloads | 163 | |
Matrix downloads | 7 | Balnibarbinae (7 downloads); |