Project 4847: S. Byrum, B. S. Lieberman. 2021. Phylogeny and biogeography of some Cretaceous spatangoid echinoids with special emphasis on taxa from the Western Interior Seaway. Journal of Paleontology. 95 (3):613-623.
Abstract
Members of the echinoid order Spatangoida, a highly diverse and abundant marine invertebrate clade, were important denizens of the Cretaceous Western Interior Seaway (WIS), an epicontinental seaway that divided North Amer- ica in two during an interval of greenhouse conditions between roughly 100 and 65 million years ago. A phylogenetic analysis of spatangoids was conducted using a character matrix of 32 characters from 21 species. Species that occur in the WIS were considered comprehensively, and species from other regions such as South America, Europe, and North Africa were also incorporated into the analysis. Phylogenetic patterns retrieved are largely congruent with preexisting family- level classifications; however, species within several genera, especially Hemiaster and Heteraster, need to be reassigned so that classification better reflects phylogeny. The genera Washitaster and Heteraster are closely related, as are Mecaster, Palhemiaster, and Proraster; Pliotoxaster, Macraster, and Hemiaster; and Micraster and Diplodetus. Biogeographic pat- terns were also considered using the phylogeny, and several episodes of vicariance and range expansion were identified. These were possibly related to some of the various major episodes of sea-level rise and fall during the Cretaceous. In particular, Valangian–mid-Aptian regressions may have caused vicariance within Heteraster and Washitaster while other early spatangoid vicariance may be related to regressions during the late Aptian–early Cenomanian. Further, vicariance caused by regressions during the mid-Cenomanian–Maastrichtian may have driven diversification within Micraster and Diplodetus. Last, transgressions during the late range expansions in Mecaster and Hemiaster.Read the article »
Article DOI: 10.1017/jpa.2020.102
Project DOI: 10.7934/P4847, http://dx.doi.org/10.7934/P4847
This project contains | Matrices |
---|---|
Download Project SDD File | Total scored cells: 0 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 32 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 78 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:32/0 |
Currently Viewing:
MorphoBank Project 4847
MorphoBank Project 4847
- Creation Date:
22 August 2023 - Publication Date:
23 August 2023 - Project views: 2082
This research
supported by
Authors' Institutions
- University of Florida
- University of Kansas
- Florida Museum of Natural History
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Joyce Song Project Administrator | 21 | 1 | 1 | 32 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29459' (21 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Heteraster oblongus Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[2] † Heteraster texanus Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[3] † Washitaster riovistae Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[4] † Washitaster wenoensis Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[5] † Macraster elegans Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[6] † Mecaster fourneli Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[7] † Micraster schroederi Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[8] † Pliotoxaster comanchei Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[9] † Proraster dalli Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[10] † Proraster bexari Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[11] † Proraster humphreysanus Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[12] † Palhemiaster calvini Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[13] † Hemiaster bufo Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[14] † Hemiaster cranium Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[15] † Hemiaster batnensis Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[16] † Hemiaster estepi Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[17] † Hemiaster texanus Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[18] † Linthia variabilis Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[19] † Diplodetus americanus Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[20] † Diplodetus parvistella Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
[21] † Toxaster retusus Last Modified in 08/22/23 | 32 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 2082 | |
Documents list | 108 | |
Matrix views | 127 | Matrix landing page (121 views); Matrix from PBDB (6 views); |
Project overview | 237 | |
Taxon list | 640 | |
Media views | 506 | Media search (417 views); M892517 (89 views); |
Views for media list | 141 | |
Bibliography | 88 | |
Specimen list | 235 |