Project 4822: L. Amati, R. M. Feldmann, J. Zonneveld. 2004. A new family of Triassic lobsters (Decapoda: Astacidea) from British Columbia and its phylogenetic context. Journal of Paleontology. 78 (1):150-168.
Abstract
Chimaerastacus pacifluvialis, new genus and species, is established on the basis of fossils from the Middle Triassic Liard Formation of northeastern British Columbia. It has well-defined cervical, postcervical, and branchiocardiac grooves; three longitudinal ridges on the cephalic region; and true chelae on the first through third pereiopods. The morphological features of the carapace are a combination of traits used to define both the erymids and the glypheids. A cladistic analysis of 31 decapod genera defines the Astacidea as a monophyletic group, supports the inclusion of the Glypheoidea within the infraorder Astacidea, illustrates the relationships of the Glypheoidea with other astacid groups, and suggests erection of a new family, the Chimaerastacidae, for our new genus and species of decapod. Specimens of C. pacifluvialis are preserved in a sandy bioclastic floatstone that was deposited near the Peace River Embayment in the Middle Triassic. The host lithology suggests that the decapods inhabited a transitional environment between low relief biostromes and the shoreface. This environment provided a unique set of conditions that allowed exceptional preservation of the decapod material.Read the article »
Article DOI: 10.1666/0022-3360(2004)078%3C0150:ANFOTL%3E2.0.CO;2
Project DOI: 10.7934/P4822, http://dx.doi.org/10.7934/P4822
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 632 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 21 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 61 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:21/0 |
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MorphoBank Project 4822
MorphoBank Project 4822
- Creation Date:
08 August 2023 - Publication Date:
16 August 2023 - Matrix downloads: 1
Authors' Institutions
- University of Oklahoma
- Kent State University
- Geological Survey of Canada
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
Shreya Jariwala Project Administrator | 31 | 5 | 5 | 21 | 0 | 0 | 632 (632, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M29428' (31 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] Penaeus Taxon name last Modified on 08/08/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[2] † Palaeopentacheles Taxon name last Modified on 08/09/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[3] Scyllarus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[4] † Eryma Taxon name last Modified on 08/09/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[5] Phlyctisoma Taxon name last Modified on 08/08/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[6] † Enoploclytia Taxon name last Modified on 08/09/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[7] † Pemphix Taxon name last Modified on 08/09/23 | 2 | 19 | 19 | 0 | 0 | 0 | 0 | 1 |
[8] † Pseudopemphix Taxon name last Modified on 08/09/23 | 4 | 17 | 17 | 0 | 0 | 0 | 0 | 1 |
[9] Clytiopsis Taxon name last Modified on 08/08/23 | 2 | 19 | 19 | 0 | 0 | 0 | 0 | 1 |
[10] † Glyphea Taxon name last Modified on 08/09/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[11] † Mecochirus Taxon name last Modified on 08/09/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[12] † Pseudoglyphea Taxon name last Modified on 08/09/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[13] Chimaerastacus Taxon name last Modified on 08/08/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[14] Astacus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[15] Cambarus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[16] Nephrops Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[17] Homarus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[18] † Hoploparia Taxon name last Modified on 08/09/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[19] Carcinus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[20] Cancer Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[21] Dromia Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[22] Galathea Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[23] Linuparus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[24] Stenopus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[25] † Neoglyphea Taxon name last Modified on 08/09/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[26] Virilastacus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[27] Enoplometopus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[28] Callianasa Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[29] † Laomedia Taxon name last Modified on 08/09/23 | 1 | 20 | 20 | 0 | 0 | 0 | 0 | 1 |
[30] Pagurus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
[31] Panulirus Taxon name last Modified on 08/08/23 | 0 | 21 | 21 | 0 | 0 | 0 | 0 | 1 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 1 | |
Matrix downloads | 1 | Amati et al 2004 (1 download); |