Project 5168: J. R. Hendricks, B. S. Lieberman. 2008. New phylogenetic insights into the Cambrian radiation of arachnomorph arthropods. Journal of Paleontology. 82 (3):585-594.
Abstract
The Cambrian fossil record of the Arachnomorpha is rich and diverse and includes trilobites, chelicerates, and many taxa known from various soft-bodied faunas including the Burgess Shale and the Chengjiang. Exceptionally well-preserved arthropod fossils are also known from Middle Cambrian strata in Utah. Recently, two new arachnomorphs (Dicranocaris Briggs, Lieberman, Hendricks, Halgedahl, and Jarrard, 2008 and Nettapezoura Briggs, Lieberman, Hendricks, Halgedahl, and Jarrard, 2008) were described from the Wheeler and Marjum formations of Utah. Cladistic analysis is undertaken to investigate arachnomorph relationships in light of these two new genera. The character matrix of Edgecombe and Ramskold (1999) serves as the foundation for this study, augmented by new characters and taxa. The results of our cladistic analysis suggest that at least three distinct arachnomorph clades had diverged by the Middle Cambrian, and perhaps much earlier; the Utah genera can be referred to groups within one of these clades.Read the article »
Article DOI: 10.1666/07-017.1
Project DOI: 10.7934/P5168, http://dx.doi.org/10.7934/P5168
| This project contains | Matrices |
|---|---|
Download Project SDD File  | Total scored cells: 833 Total media associated with cells: 0 Total labels associated with cell media: 0 |
| Characters | |
| Total characters: 35 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 86 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:35/0 |
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MorphoBank Project 5168
MorphoBank Project 5168
- Creation Date:
29 March 2024 - Publication Date:
08 April 2024
This research
supported by
Authors' Institutions
- University of Kansas
Members
| member name | taxa |
specimens |
media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
| Shreya Jariwala Project Administrator | 26 | 1 | 1 | 35 | 0 | 0 | 833 (744, 0, 89) | 0 | 0 | 0 | ||||
Taxonomic Overview for Matrix 'M29762' (26 Taxa)
| taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
| [1] † Marrellomorpha Taxon name last Modified on 03/29/24 | 1 | 29 | 27 | 0 | 7 | 0 | 0 | 1 |
| [2] † Sidneyia Taxon name last Modified on 03/29/24 | 1 | 31 | 31 | 0 | 3 | 0 | 0 | 1 |
| [3] † Emeraldella Taxon name last Modified on 03/29/24 | 2 | 31 | 31 | 0 | 2 | 0 | 0 | 1 |
| [4] † Cindarella Taxon name last Modified on 03/29/24 | 0 | 30 | 30 | 0 | 5 | 0 | 0 | 1 |
| [5] † Xandarella Taxon name last Modified on 03/29/24 | 0 | 30 | 30 | 0 | 5 | 0 | 0 | 1 |
| [6] † Sinoburius Taxon name last Modified on 03/29/24 | 4 | 28 | 28 | 0 | 3 | 0 | 0 | 1 |
| [7] † Retifacies Taxon name last Modified on 03/29/24 | 1 | 33 | 33 | 0 | 1 | 0 | 0 | 1 |
| [8] † Kuamaia Taxon name last Modified on 03/29/24 | 2 | 30 | 30 | 0 | 3 | 0 | 0 | 1 |
| [9] † Helmetia Taxon name last Modified on 03/29/24 | 7 | 25 | 25 | 0 | 3 | 0 | 0 | 1 |
| [10] † Skioldia Taxon name last Modified on 03/29/24 | 8 | 22 | 22 | 0 | 5 | 0 | 0 | 1 |
| [11] † Saperion Taxon name last Modified on 03/29/24 | 3 | 27 | 27 | 0 | 5 | 0 | 0 | 1 |
| [12] † Tegopelte Taxon name last Modified on 03/29/24 | 10 | 20 | 20 | 0 | 5 | 0 | 0 | 1 |
| [13] † Liwia Taxon name last Modified on 03/29/24 | 13 | 19 | 19 | 0 | 3 | 0 | 0 | 1 |
| [14] † Tariccoia Taxon name last Modified on 03/29/24 | 11 | 22 | 21 | 0 | 3 | 0 | 0 | 1 |
| [15] † Soomaspis Taxon name last Modified on 03/29/24 | 11 | 22 | 21 | 0 | 3 | 0 | 0 | 1 |
| [16] † Misszhouia Taxon name last Modified on 03/29/24 | 1 | 30 | 30 | 0 | 4 | 0 | 0 | 1 |
| [17] † Naraoia Taxon name last Modified on 03/29/24 | 2 | 29 | 29 | 0 | 4 | 0 | 0 | 1 |
| [18] † Eoredlichia Taxon name last Modified on 03/29/24 | 0 | 32 | 32 | 0 | 3 | 0 | 0 | 1 |
| [19] † Olenoides Taxon name last Modified on 03/29/24 | 0 | 32 | 32 | 0 | 3 | 0 | 0 | 1 |
| [20] † Alalcomenaeus Taxon name last Modified on 03/29/24 | 1 | 31 | 31 | 0 | 3 | 0 | 0 | 1 |
| [21] † Leanchoilia Taxon name last Modified on 03/29/24 | 1 | 31 | 31 | 0 | 3 | 0 | 0 | 1 |
| [22] † Sanctacaris Taxon name last Modified on 03/29/24 | 1 | 31 | 31 | 0 | 3 | 0 | 0 | 1 |
| [23] † Dicranocaris Taxon name last Modified on 03/29/24 | 7 | 31 | 26 | 0 | 2 | 0 | 0 | 1 |
| [24] † Nettapezoura Taxon name last Modified on 03/29/24 | 5 | 33 | 28 | 0 | 2 | 0 | 0 | 1 |
| [25] † Weinbergina Taxon name last Modified on 03/29/24 | 0 | 32 | 32 | 0 | 3 | 0 | 0 | 1 |
| [26] † Aglaspis Taxon name last Modified on 03/29/24 | 0 | 33 | 32 | 0 | 3 | 0 | 0 | 1 |