Project 682: T. E. Williamson, S. L. Brusatte, T. D. Carr, A. Weil, B. R. Standhardt. 2012. The phylogeny and evolution of Cretaceous-Palaeogene metatherians: cladistic analysis and description of new early Palaeocene specimens from the Nacimiento Formation, New Mexico. Journal of Systematic Palaeontology. 10 (4):625-651.
Abstract
Metatherian mammals were the most diverse mammalian clade in North America through the Late Cretaceous, but they underwent a severe extinction at the Cretaceous–Palaeogene (K-Pg) boundary. In order to clarify the origin of Palaeogene metatherians and the pattern of metatherian survivorship across the K-Pg boundary we conducted an inclusive species-level phylogenetic analysis of Cretaceous and early Palaeogene metatherian taxa. This analysis includes information from new Palaeocene specimens from south-western North America. Both the phylogenetic topology and information from new specimens support the validity of the genus Thylacodon and justify the recognition of a new species, T. montanensis. Thylacodon is closely related to Swaindelphys and Herpetotheriidae, which must have diverged by the latest Cretaceous due to its close relationship with late Campanian Ectocentrocristus. Pediomyidae and ‘Peradectidae sensu lato’ together comprise a major metatherian clade. Maastrichtidelphys, from the Late Cretaceous of the Netherlands, is the oldest member of ‘Peradectidae sensu lato’, indicating a Cretaceous origination for this group. Therefore, the major groups Herpetotheriidae and ‘Peradectidae sensu lato’, represented almost completely by Palaeocene taxa, must have originated in the Late Cretaceous. The lineages leading to these clades include at least four lineages that must have crossed the K-Pg boundary and therefore confirm that the K-Pg boundary marked a profound extinction event for metatherians and suggests that Palaeogene taxa originated from only a few clades of Cretaceous species, all of which were relatively minor or very rare components of known Cretaceous mammalian faunas.Read the article »
Article DOI: 10.1080/14772019.2011.631592
Project DOI: 10.7934/P682, http://dx.doi.org/10.7934/P682
This project contains | Matrices |
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Download Project SDD File | Total scored cells: 5255 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 78 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 186 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:78/0 |
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MorphoBank Project 682
MorphoBank Project 682
- Creation Date:
02 March 2012 - Publication Date:
08 March 2012 - Project views: 44601
- Matrix downloads: 27
Authors' Institutions
- New Mexico Museum of Natural History and Science
- Oklahoma State University
- American Museum of Natural History
- Carthage College
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 2 | 1 | 1 | 1 | 0 | 0 | 5255 (5255, 0, 0) | 0 | 0 | 0 | ||||
Maureen Admin Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 | ||||
Thomas Williamson Full membership | 94 | 0 | 0 | 77 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M1945' (94 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Prokennalestes trofimovi Last Modified in 12/05/13 | 16 | 62 | 61 | 0 | 0 | 0 | 0 | 3 |
[2] † Adelodelphys muizoni Last Modified in 12/05/13 | 39 | 39 | 36 | 0 | 0 | 0 | 0 | 3 |
[3] † Aenigmadelphys archeri Last Modified in 12/05/13 | 19 | 59 | 54 | 0 | 0 | 0 | 0 | 3 |
[4] † Albertatherium primum Last Modified in 12/05/13 | 35 | 43 | 35 | 0 | 0 | 0 | 0 | 3 |
[5] † Albertatherium secundum Last Modified in 12/05/13 | 43 | 35 | 31 | 0 | 0 | 0 | 0 | 3 |
[6] † Alphadon attaragos Last Modified in 12/05/13 | 19 | 59 | 56 | 0 | 0 | 0 | 0 | 3 |
[7] † Alphadon halleyi Last Modified in 12/05/13 | 11 | 69 | 62 | 0 | 0 | 0 | 0 | 3 |
[8] † Alphadon marshi Last Modified in 12/05/13 | 14 | 64 | 57 | 0 | 0 | 0 | 0 | 3 |
[9] † Alphadon perexiguus Last Modified in 12/05/13 | 20 | 58 | 53 | 0 | 0 | 0 | 0 | 3 |
[10] † Alphadon sahnii Last Modified in 12/05/13 | 17 | 61 | 56 | 0 | 0 | 0 | 0 | 3 |
[11] † Alphadon wilsoni Last Modified in 12/05/13 | 15 | 63 | 58 | 0 | 0 | 0 | 0 | 3 |
[12] † Anchistodelphys archibaldi Last Modified in 12/05/13 | 17 | 62 | 56 | 0 | 0 | 0 | 0 | 3 |
[13] † Anchistodelphys delicatus Last Modified in 12/05/13 | 46 | 32 | 30 | 0 | 0 | 0 | 0 | 3 |
[14] † Apistodon exiguus Last Modified in 12/05/13 | 36 | 42 | 39 | 0 | 0 | 0 | 0 | 3 |
[15] † Aquiladelphis laurae Last Modified in 12/05/13 | 47 | 31 | 29 | 0 | 0 | 0 | 0 | 3 |
[16] † Aquiladelphis incus Last Modified in 12/05/13 | 16 | 62 | 57 | 0 | 0 | 0 | 0 | 3 |
[17] † Aquiladelphis minor Last Modified in 12/05/13 | 25 | 53 | 50 | 0 | 0 | 0 | 0 | 3 |
[18] † Armintodelphys blacki Last Modified in 12/05/13 | 55 | 24 | 22 | 0 | 0 | 0 | 0 | 3 |
[19] † Armintodelphys dawsoni Last Modified in 12/05/13 | 19 | 59 | 56 | 0 | 0 | 0 | 0 | 3 |
[20] † Asiatherium reshetovi Last Modified in 12/05/13 | 17 | 61 | 53 | 0 | 0 | 0 | 0 | 3 |
[21] † Atokatherium boreni Last Modified in 12/05/13 | 30 | 48 | 47 | 0 | 0 | 0 | 0 | 3 |
[22] † Bistius bondi Last Modified in 12/05/13 | 41 | 37 | 35 | 0 | 0 | 0 | 0 | 3 |
[23] † Copedelphys innominata Last Modified in 12/05/13 | 16 | 62 | 58 | 0 | 0 | 0 | 0 | 3 |
[24] † Dakotadens morrowi Last Modified in 12/05/13 | 17 | 64 | 56 | 0 | 0 | 0 | 0 | 3 |
[25] † Deltatheridium pretrituberculare Last Modified in 12/05/13 | 19 | 59 | 53 | 0 | 0 | 0 | 0 | 3 |
[26] † Deltatheroides cretacicus Last Modified in 12/05/13 | 44 | 34 | 34 | 0 | 0 | 0 | 0 | 3 |
[27] † Didelphodon coyi Last Modified in 12/05/13 | 18 | 60 | 53 | 0 | 0 | 0 | 0 | 3 |
[28] † Didelphodon vorax Last Modified in 12/05/13 | 7 | 72 | 62 | 0 | 0 | 0 | 0 | 3 |
[29] † Ectocentrocristus foxi Last Modified in 12/05/13 | 32 | 46 | 43 | 0 | 0 | 0 | 0 | 3 |
[30] † Eoalphadon clemensi Last Modified in 12/05/13 | 14 | 65 | 58 | 0 | 0 | 0 | 0 | 3 |
[31] † Eoalphadon lillegraveni Last Modified in 12/05/13 | 19 | 61 | 56 | 0 | 0 | 0 | 0 | 3 |
[32] † Eoalphadon woodburnei Last Modified in 12/05/13 | 20 | 58 | 57 | 0 | 0 | 0 | 0 | 3 |
[33] † Eodelphis browni Last Modified in 12/05/13 | 19 | 59 | 55 | 0 | 0 | 0 | 0 | 3 |
[34] † Eodelphis cutleri Last Modified in 12/05/13 | 17 | 61 | 55 | 0 | 0 | 0 | 0 | 3 |
[35] † Glasbius intricatus Last Modified in 12/05/13 | 12 | 67 | 59 | 0 | 0 | 0 | 0 | 3 |
[36] † Glasbius twitchelli Last Modified in 12/05/13 | 10 | 68 | 66 | 0 | 0 | 0 | 0 | 3 |
[37] † Hatcheritherium alpha Last Modified in 12/05/13 | 44 | 34 | 33 | 0 | 0 | 0 | 0 | 3 |
[38] † Goler formation taxon Last Modified in 12/05/13 | 20 | 58 | 58 | 0 | 0 | 0 | 0 | 3 |
[39] † Herpetotherium comstocki Last Modified in 12/05/13 | 16 | 62 | 61 | 0 | 0 | 0 | 0 | 3 |
[40] † Herpetotherium edwardi Last Modified in 12/05/13 | 15 | 63 | 59 | 0 | 0 | 0 | 0 | 3 |
[41] † Herpetotherium fugax Last Modified in 12/05/13 | 6 | 72 | 66 | 0 | 0 | 0 | 0 | 3 |
[42] † Herpetotherium knighti Last Modified in 12/05/13 | 14 | 65 | 62 | 0 | 0 | 0 | 0 | 3 |
[43] † Herpetotherium marsupium Last Modified in 12/05/13 | 10 | 69 | 62 | 0 | 0 | 0 | 0 | 3 |
[44] † Holoclemensia texana Last Modified in 12/05/13 | 22 | 56 | 56 | 0 | 0 | 0 | 0 | 3 |
[45] † Iqualadelphis lactea Last Modified in 12/05/13 | 41 | 37 | 33 | 0 | 0 | 0 | 0 | 3 |
[46] † Iugomortiferum thoringtoni Last Modified in 12/05/13 | 18 | 60 | 57 | 0 | 0 | 0 | 0 | 3 |
[47] † Kokopellia juddi Last Modified in 12/05/13 | 20 | 58 | 51 | 0 | 0 | 0 | 0 | 3 |
[48] † Leptalestes cooki Last Modified in 12/05/13 | 26 | 52 | 48 | 0 | 0 | 0 | 0 | 3 |
[49] † Leptalestes krejcii Last Modified in 12/05/13 | 21 | 57 | 52 | 0 | 0 | 0 | 0 | 3 |
[50] † Leptalestes prokrejcii Last Modified in 12/05/13 | 26 | 52 | 48 | 0 | 0 | 0 | 0 | 3 |
[51] † Leptalestes toevsi Last Modified in 12/05/13 | 34 | 44 | 38 | 0 | 0 | 0 | 0 | 3 |
[52] † Maastrichtidelphys meurismeti Last Modified in 12/05/13 | 42 | 36 | 35 | 0 | 0 | 0 | 0 | 3 |
[53] † Mimoperadectes houdei Last Modified in 12/05/13 | 31 | 48 | 44 | 0 | 0 | 0 | 0 | 3 |
[54] † Mimoperadectes labrus Last Modified in 12/05/13 | 11 | 68 | 61 | 0 | 0 | 0 | 0 | 3 |
[55] † Nanocuris improvida Last Modified in 12/05/13 | 26 | 52 | 51 | 0 | 0 | 0 | 0 | 3 |
[56] † Nortedelphys jasoni Last Modified in 12/05/13 | 14 | 64 | 58 | 0 | 0 | 0 | 0 | 3 |
[57] † Nortedelphys magnus Last Modified in 12/05/13 | 13 | 65 | 60 | 0 | 0 | 0 | 0 | 3 |
[58] † Nortedelphys minimus Last Modified in 12/05/13 | 38 | 40 | 37 | 0 | 0 | 0 | 0 | 3 |
[59] † Oklatheridium szalayi Last Modified in 12/05/13 | 39 | 39 | 38 | 0 | 0 | 0 | 0 | 3 |
[60] † Pappotherium pattersoni Last Modified in 12/05/13 | 30 | 48 | 47 | 0 | 0 | 0 | 0 | 3 |
[61] † Pariadens kirklandi Last Modified in 12/05/13 | 20 | 58 | 54 | 0 | 0 | 0 | 0 | 3 |
[62] † Pariadens mckennai Last Modified in 12/05/13 | 60 | 18 | 16 | 0 | 0 | 0 | 0 | 3 |
[63] † Pediomys elegans Last Modified in 12/05/13 | 12 | 66 | 61 | 0 | 0 | 0 | 0 | 3 |
[64] † Peradectes californicus Last Modified in 12/05/13 | 19 | 59 | 55 | 0 | 0 | 0 | 0 | 3 |
[65] † Peradectes chesteri Last Modified in 12/05/13 | 26 | 52 | 51 | 0 | 0 | 0 | 0 | 3 |
[66] † Peradectes elegans Last Modified in 12/05/13 | 10 | 69 | 61 | 0 | 0 | 0 | 0 | 3 |
[67] † Peradectes gulottai Last Modified in 12/05/13 | 37 | 41 | 40 | 0 | 0 | 0 | 0 | 3 |
[68] Peradectes coprexeches Last Modified in 12/05/13 | 14 | 65 | 58 | 0 | 0 | 0 | 0 | 3 |
[69] † Peradectes minor Last Modified in 12/05/13 | 14 | 64 | 60 | 0 | 0 | 0 | 0 | 3 |
[70] † Peradectes protinnominatus Last Modified in 12/05/13 | 14 | 64 | 62 | 0 | 0 | 0 | 0 | 3 |
[71] † Protalphadon foxi Last Modified in 12/05/13 | 36 | 45 | 37 | 0 | 0 | 0 | 0 | 3 |
[72] † Protalphadon lulli Last Modified in 12/05/13 | 18 | 61 | 55 | 0 | 0 | 0 | 0 | 3 |
[73] † Protolambda clemensi Last Modified in 12/05/13 | 26 | 52 | 48 | 0 | 0 | 0 | 0 | 3 |
[74] † Protolambda florencae Last Modified in 12/05/13 | 25 | 53 | 49 | 0 | 0 | 0 | 0 | 3 |
[75] † Protolambda hatcheri Last Modified in 12/05/13 | 19 | 60 | 54 | 0 | 0 | 0 | 0 | 3 |
[76] † Pucadelphys andinus Last Modified in 12/05/13 | 5 | 73 | 64 | 0 | 0 | 0 | 0 | 3 |
[77] † Roberthoffstetteria nationalgeographica Last Modified in 12/05/13 | 11 | 67 | 64 | 0 | 0 | 0 | 0 | 3 |
[78] † Sinbadelphys schmidti Last Modified in 12/05/13 | 26 | 52 | 47 | 0 | 0 | 0 | 0 | 3 |
[79] † Sulestes karakshi Last Modified in 12/05/13 | 16 | 63 | 62 | 0 | 0 | 0 | 0 | 3 |
[80] † Swaindelphys cifellii Last Modified in 12/05/13 | 14 | 64 | 60 | 0 | 0 | 0 | 0 | 3 |
[81] † Swaindelphys johansoni Last Modified in 12/05/13 | 9 | 69 | 68 | 0 | 0 | 0 | 0 | 3 |
[82] † Swaindelphys encinensis Last Modified in 12/05/13 | 14 | 64 | 61 | 0 | 0 | 0 | 0 | 3 |
[83] † Szalinia gracilis Last Modified in 12/05/13 | 6 | 73 | 68 | 0 | 0 | 0 | 0 | 3 |
[84] † Thylacodon pusillus Last Modified in 12/05/13 | 12 | 66 | 62 | 0 | 0 | 0 | 0 | 3 |
[85] Thylacodon montana sp. nov. Last Modified in 12/05/13 | 9 | 69 | 66 | 0 | 0 | 0 | 0 | 3 |
[86] † Turgidodon lillegraveni Last Modified in 12/05/13 | 36 | 42 | 41 | 0 | 0 | 0 | 0 | 3 |
[87] † Turgidodon madseni Last Modified in 12/05/13 | 17 | 61 | 57 | 0 | 0 | 0 | 0 | 3 |
[88] † Turgidodon petiminis Last Modified in 12/05/13 | 16 | 62 | 58 | 0 | 0 | 0 | 0 | 3 |
[89] † Turgidodon praesagus Last Modified in 12/05/13 | 15 | 64 | 58 | 0 | 0 | 0 | 0 | 3 |
[90] † Turgidodon rhaister Last Modified in 12/05/13 | 12 | 66 | 61 | 0 | 0 | 0 | 0 | 3 |
[91] † Turgidodon russelli Last Modified in 12/05/13 | 7 | 73 | 68 | 0 | 0 | 0 | 0 | 3 |
[92] † Varalphadon crebreforme Last Modified in 12/05/13 | 40 | 38 | 35 | 0 | 0 | 0 | 0 | 3 |
[93] † Varalphadon creber Last Modified in 12/05/13 | 37 | 42 | 37 | 0 | 0 | 0 | 0 | 3 |
[94] † Varalphadon wahweapensis Last Modified in 12/05/13 | 17 | 62 | 55 | 0 | 0 | 0 | 0 | 3 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 44601 | |
Project overview | 3842 | |
Media views | 6728 | Media search (5844 views); M102598 (884 views); |
Taxon list | 22414 | |
Specimen list | 3134 | |
Matrix views | 2686 | Matrix landing page (2364 views); (5 views); Williamson et al 2012 matrix (317 views); |
Documents list | 1937 | |
Bibliography | 2006 | |
Views for media list | 1854 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 356 | |
Project downloads | 328 | |
Matrix downloads | 27 | (5 downloads); Williamson et al 2012 matrix (22 downloads); |
Document downloads | 1 | Copyright information for exemplar media (1 download); |