Project 674: S. P. Zack. 2011. New Species of the Rare Early Eocene Creodont Galecyon and the Radiation of Early Hyaenodontidae. Journal of Paleontology. 85 (2):315-336.
Abstract
Galecyon is one of the first appearing hyaenodontid creodonts, as well as one of the most poorly known. New specimens greatly improve our understanding of the morphology of this early Eocene genus, thereby enhance knowledge of the earliest radiation of Hyaenodontidae, and include the first associated upper dental remains, as well as fragmentary cranial remains. The new records substantially expand the stratigraphic range of the genus and allow recognition of two new species. The first, Galecyon peregrinus n. sp., is a small, early species that includes the first records of Galecyon from the earliest Eocene Wa-0 interval. The second, Galecyon chronius n. sp., is a large, terminal species, represented by numerous specimens that extend the range of the genus into the late Wasatchian. The type species, G. mordax, is restricted to specimens that are intermediate in size and stratigraphic position. Phylogenetic analysis of early hyaenodontids confirms the monophyly of Galecyon and places it basal to Prolimnocyon, Prototomus, and Pyrocyon. Arfia is identified as the earliest diverging hyaenodontid sampled, contrasting with prior support for a more crownward position. Prototomus martis is more closely allied to Pyrocyon than to other species of Prototomus. The three North American species of Galecyon form a probable anagenetic lineage.Read the article »
Project DOI: 10.7934/P674, http://dx.doi.org/10.7934/P674
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 805 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 54 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 119 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:54/0 |
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MorphoBank Project 674
MorphoBank Project 674
- Creation Date:
15 February 2012 - Publication Date:
18 February 2012 - Project views: 26653
- Matrix downloads: 5
This research
supported by
Authors' Institutions
- University of Arizona
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 18 | 1 | 1 | 54 | 0 | 0 | 805 (800, 0, 5) | 0 | 0 | 0 | ||||
Maureen Admin Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Shawn Zack Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M1545' (18 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Prodiacodon spp. Last Modified in 12/05/13 | 3 | 50 | 49 | 0 | 2 | 0 | 0 | 3 |
[2] † Cimolestes magnus Last Modified in 12/05/13 | 3 | 51 | 51 | 0 | 0 | 0 | 0 | 3 |
[3] † Arfia gingerichi Last Modified in 12/05/13 | 9 | 44 | 44 | 0 | 1 | 0 | 0 | 3 |
[4] † Arfia junnei Last Modified in 12/05/13 | 20 | 34 | 34 | 0 | 0 | 0 | 0 | 3 |
[5] † Arfia shoshoniensis and opisthotoma Last Modified in 12/05/13 | 1 | 60 | 53 | 0 | 0 | 0 | 0 | 3 |
[6] † Prototomus minimus Last Modified in 12/05/13 | 8 | 46 | 45 | 0 | 1 | 0 | 0 | 3 |
[7] † Prototomus deimos Last Modified in 12/05/13 | 28 | 26 | 26 | 0 | 0 | 0 | 0 | 3 |
[8] † Prototomus phobos Last Modified in 12/05/13 | 18 | 36 | 36 | 0 | 0 | 0 | 0 | 3 |
[9] † Prototomus secundarius Last Modified in 12/05/13 | 3 | 51 | 51 | 0 | 0 | 0 | 0 | 3 |
[10] † Prototomus martis Last Modified in 12/05/13 | 14 | 43 | 40 | 0 | 0 | 0 | 0 | 3 |
[11] † Pyrocyon strenuus Last Modified in 12/05/13 | 3 | 51 | 51 | 0 | 0 | 0 | 0 | 3 |
[12] † Pyrocyon dioctetus Last Modified in 12/05/13 | 22 | 32 | 32 | 0 | 0 | 0 | 0 | 3 |
[13] † Prolimnocyon haematus Last Modified in 12/05/13 | 4 | 53 | 50 | 0 | 0 | 0 | 0 | 3 |
[14] † Prolimnocyon atavus Last Modified in 12/05/13 | 1 | 55 | 53 | 0 | 0 | 0 | 0 | 3 |
[15] † Galecyon morloi Last Modified in 12/05/13 | 20 | 33 | 33 | 0 | 1 | 0 | 0 | 3 |
[16] † Galecyon peregrinus Last Modified in 12/05/13 | 25 | 33 | 29 | 0 | 0 | 0 | 0 | 3 |
[17] † Galecyon mordax Last Modified in 12/05/13 | 12 | 45 | 42 | 0 | 0 | 0 | 0 | 3 |
[18] † Galecyon chronius Last Modified in 12/05/13 | 1 | 57 | 53 | 0 | 0 | 0 | 0 | 3 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 26653 | |
Project overview | 3503 | |
Media views | 6517 | Media search (5588 views); M102331 (929 views); |
Documents list | 2014 | |
Matrix views | 2560 | Matrix landing page (2208 views); Galecyon dental matrix (352 views); |
Specimen list | 3314 | |
Taxon list | 7487 | |
Bibliography | 1258 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 385 | |
Project downloads | 380 | |
Matrix downloads | 5 | Galecyon dental matrix (5 downloads); |