Project 5576: F. Alvarez, R. Jia-Yu, A. J. Boucot. 1998. The classification of athyridid brachiopods. Journal of Paleontology. 72 (5):827-855.
Abstract
Phylogenetic relationships among higher taxa of articulate brachiopods that developed a spiralium as mineralized support for the lophophore, and the resulting classifications, are not universally agreed upon due to the complex pattern of character evolution within the phylum. Our results, using phylogenetic methodology in conjunction with traditional methods, showed a more complete and easily testable picture of this evolution than either method used alone. A detailed working hypothesis of athyridide phylogeny and the supporting evidence on character distribution is given, and a new classification of the impunctate and punctate athyrids sensu lato is presented with diagnoses to subfamily. Agreement between the stratigraphical first appearance of athyridid subfamilies and their cladistic rank was quite good (except for the koninckinoids), suggesting that both outgroup and traditional paleontological methods indicate a similar direction of character polarity in the evolution of the group. The classification is proposed based on a mix of external and internal characters which persisted during unbroken lineages. New taxa are the families Parazygidae and Triathyrididae; the subfamilies Whitfieldellinae, Triathyridinae, Septathyridinae, Cleiothyridininae, Ochotathyridinae and Plectospirinae, and the genera Brimethyris, Carteridina, Tetraloba and Cooperispira. We studied the great morphological diversity among the athyridids. Their complete strati-graphical ranges help in building phyletic lineages.Read the article »
Article DOI: 10.1017/S0022336000027189
Project DOI: 10.7934/P5576, http://dx.doi.org/10.7934/P5576
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 1317 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 37 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 130 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:37/0 |
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MorphoBank Project 5576
MorphoBank Project 5576
- Creation Date:
22 October 2024 - Publication Date:
28 December 2024
Authors' Institutions
- Oregon State University
- Universidad de Oviedo
- Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Cidambi Gopal Project Administrator | 37 | 1 | 0 | 37 | 0 | 0 | 1317 (1317, 0, 0) | 0 | 0 | 0 | ||||
Brooke Long-Fox Full membership | 1 | 1 | 1 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M30279' (37 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Athyridinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[2] † Athyrisininae Taxon name last Modified on 10/26/24 | 2 | 35 | 35 | 0 | 0 | 0 | 0 | 2 |
[3] † Camarophorellinae Taxon name last Modified on 10/26/24 | 2 | 35 | 35 | 0 | 0 | 0 | 0 | 2 |
[4] † Clavigerinae Taxon name last Modified on 10/26/24 | 1 | 36 | 36 | 0 | 0 | 0 | 0 | 2 |
[5] † Cleiothyridininae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[6] † Comelicaniinae Taxon name last Modified on 10/26/24 | 4 | 33 | 33 | 0 | 0 | 0 | 0 | 2 |
[7] † Didymothyridinae Taxon name last Modified on 10/26/24 | 4 | 33 | 33 | 0 | 0 | 0 | 0 | 2 |
[8] † Diplospirellinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[9] † Helenathyridinae Taxon name last Modified on 10/26/24 | 3 | 34 | 34 | 0 | 0 | 0 | 0 | 2 |
[10] † Hungarispirinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[11] † Hustediinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[12] † Hyattidinidae Taxon name last Modified on 10/26/24 | 4 | 33 | 33 | 0 | 0 | 0 | 0 | 2 |
[13] † Koninckinoidea Taxon name last Modified on 10/26/24 | 4 | 33 | 33 | 0 | 0 | 0 | 0 | 2 |
[14] † Lochengiinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[15] † Meristellinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[16] † Meristinae Taxon name last Modified on 10/26/24 | 1 | 36 | 36 | 0 | 0 | 0 | 0 | 2 |
[17] † Misoliinae Taxon name last Modified on 10/26/24 | 3 | 34 | 34 | 0 | 0 | 0 | 0 | 2 |
[18] † Mongolospiroidea Taxon name last Modified on 10/26/24 | 3 | 34 | 34 | 0 | 0 | 0 | 0 | 2 |
[19] † Neoretziinae Taxon name last Modified on 10/26/24 | 2 | 35 | 35 | 0 | 0 | 0 | 0 | 2 |
[20] † Nucleospiroidea Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[21] † Ochotathyridinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[22] † Parazygidae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[23] † Plectospirinae Taxon name last Modified on 10/26/24 | 1 | 36 | 36 | 0 | 0 | 0 | 0 | 2 |
[24] † Plicathyridinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[25] † Pradoiinae Taxon name last Modified on 10/26/24 | 1 | 36 | 36 | 0 | 0 | 0 | 0 | 2 |
[26] † Retzielloidea Taxon name last Modified on 10/26/24 | 1 | 36 | 36 | 0 | 0 | 0 | 0 | 2 |
[27] † Retziidae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[28] † Rhynchospirinidae Taxon name last Modified on 10/26/24 | 2 | 35 | 35 | 0 | 0 | 0 | 0 | 2 |
[29] † Rowleyellinae Taxon name last Modified on 10/26/24 | 9 | 28 | 28 | 0 | 0 | 0 | 0 | 2 |
[30] † Septathyridinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[31] † Spirigerellinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[32] † Tetractinellinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[33] † Triathyridinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[34] † Whitfieldellinae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[35] † Xenosariinae Taxon name last Modified on 10/26/24 | 5 | 32 | 32 | 0 | 0 | 0 | 0 | 2 |
[36] † Ancistrorhynchidae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[37] † Trigonirhynchiidae Taxon name last Modified on 10/26/24 | 0 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |