Project 4125: J. E. Cohen, B. M. Davis, R. L. Cifelli. 2020. Geologically Oldest Pediomyoidea (Mammalia, Marsupialiformes) from the Late Cretaceous of North America, with Implications for Taxonomy and Diet of Earliest Late Cretaceous Mammals. Journal of Vertebrate Paleontology. 40 (5):e1835935.
Abstract
Terrestrial faunas of Turonian age are poorly known due to the paucity of the fossil record in North America and globally. The Smoky Hollow Member of the Straight Cliffs Formation, southern Utah, has yielded a rich assemblage of terrestrial vertebrates; among these, we herein recognize the geologically oldest members of Pediomyoidea. Two new species, Scalaria martini, gen. et sp. nov. and Scalaria aquilana, gen. et sp. nov., are recovered as members of Aquiladelphidae, sharing upper molar characters such as a subdivided B cusp, round and inflated cusps, and an anteroposteriorly expanded protocone. A fragmentary specimen is recognized as an indeterminate pediomyid with morphological similarities to Leptalestes. The occurrence of these distinctive groups in the Turonian prompted a re-evaluation of possible antecedents from earlier faunas, and a review of specimens referred to Aquiladelphidae. A phylogenetic analysis suggests that the Cenomanian tribosphenidan Dakotadens may belong within Aquiladelphidae. Of specimens referred to Aquiladelphidae, we recognize Aquiladelphis laurae as a valid species within the genus, and describe a new species of Aquiladelphis from the Judith River Formation of Montana, Aquiladelphis analetris, sp. nov. Two specimens from the ‘Edmontonian’ Williams Fork Formation, previously identified as Aquiladelphis, are here referred to a new species of Glasbius, G. piceanus, sp. nov. The presence of dentally derived marsupialiforms in the Turonian suggests that ecological drivers credited with dietary specializations among later Cretaceous taxa, such as proliferation of angiosperms and pollinating insects, were at work earlier than previously thought.Read the article »
Article DOI: 10.1080/02724634.2020.1835935
Project DOI: 10.7934/P4125, http://dx.doi.org/10.7934/P4125
This project contains | Matrices |
---|---|
Download Project SDD File | Total scored cells: 4531 Total media associated with cells: 0 Total labels associated with cell media: 0 |
Characters | |
Total characters: 156 Total characters with associated media: 0 Total characters with media with labels: 0 Total character states: 367 Total character states with associated media: 0 Total character states with media with labels:0 Total unordered/ordered characters:141/15 |
Currently Viewing:
MorphoBank Project 4125
MorphoBank Project 4125
- Creation Date:
18 November 2021 - Publication Date:
22 December 2021 - Project views: 8236
- Matrix downloads: 1
This research
supported by
Authors' Institutions
- University of Louisville
- University of Oklahoma
- Loyola Marymount University
Members
member name | taxa | specimens | media | chars | character
| cell scorings (scored, NPA, "-") | cell
| rules | ||||||
MorphoBank Curator Project Administrator | 59 | 1 | 1 | 156 | 0 | 0 | 4531 (4531, 0, 0) | 0 | 0 | 0 | ||||
Richard Cifelli Full membership | 0 | 0 | 0 | 0 | 0 | 0 | 0 (0, 0, 0) | 0 | 0 | 0 |
Taxonomic Overview for Matrix 'M27710' (59 Taxa)
taxon | unscored cells |
scored cells |
no cell support |
NPA cells |
"-" cells | cell images | labels on cell images |
member access |
[1] † Amphitherium Last Modified in 12/22/21 | 79 | 77 | 77 | 0 | 0 | 0 | 0 | 2 |
[2] † Peramus Last Modified in 11/18/21 | 91 | 65 | 65 | 0 | 0 | 0 | 0 | 2 |
[3] † Vincelestes Last Modified in 11/18/21 | 4 | 152 | 152 | 0 | 0 | 0 | 0 | 2 |
[4] † Aegialodon Last Modified in 12/22/21 | 144 | 12 | 12 | 0 | 0 | 0 | 0 | 2 |
[5] † Kielantherium Last Modified in 11/18/21 | 103 | 55 | 53 | 0 | 0 | 0 | 0 | 2 |
[6] † Potamotelses Last Modified in 11/18/21 | 115 | 41 | 41 | 0 | 0 | 0 | 0 | 2 |
[7] † Comanchea Last Modified in 11/18/21 | 131 | 25 | 25 | 0 | 0 | 0 | 0 | 2 |
[8] † Slaughteria Last Modified in 11/18/21 | 138 | 18 | 18 | 0 | 0 | 0 | 0 | 2 |
[9] † Trinititherium Last Modified in 11/18/21 | 142 | 15 | 14 | 0 | 0 | 0 | 0 | 2 |
[10] † Kermackia Last Modified in 11/18/21 | 113 | 44 | 43 | 0 | 0 | 0 | 0 | 2 |
[11] † Picopsis Last Modified in 11/18/21 | 123 | 35 | 33 | 0 | 0 | 0 | 0 | 2 |
[12] † Holoclemensia Last Modified in 11/18/21 | 108 | 48 | 48 | 0 | 0 | 0 | 0 | 2 |
[13] † Pappotherium Last Modified in 11/18/21 | 116 | 40 | 40 | 0 | 0 | 0 | 0 | 2 |
[14] † Deltatheridium Last Modified in 12/22/21 | 22 | 135 | 134 | 0 | 0 | 0 | 0 | 2 |
[15] † Deltatheroides Last Modified in 11/18/21 | 87 | 69 | 69 | 0 | 0 | 0 | 0 | 2 |
[16] † Tsagandelta Last Modified in 11/18/21 | 126 | 31 | 30 | 0 | 0 | 0 | 0 | 2 |
[17] † Oklatheridium Last Modified in 11/18/21 | 116 | 41 | 40 | 0 | 0 | 0 | 0 | 2 |
[18] † Sulestes Last Modified in 11/18/21 | 62 | 95 | 94 | 0 | 0 | 0 | 0 | 2 |
[19] † Atokatheridium Last Modified in 11/18/21 | 115 | 42 | 41 | 0 | 0 | 0 | 0 | 2 |
[20] † Nanocuris Last Modified in 11/18/21 | 107 | 50 | 49 | 0 | 0 | 0 | 0 | 2 |
[21] † Gurlin Last Modified in 11/18/21 | 52 | 104 | 104 | 0 | 0 | 0 | 0 | 2 |
[22] † Pariadens Last Modified in 11/18/21 | 114 | 43 | 42 | 0 | 0 | 0 | 0 | 2 |
[23] † Kokopellia Last Modified in 11/18/21 | 100 | 57 | 56 | 0 | 0 | 0 | 0 | 2 |
[24] † Falepetrus Last Modified in 11/18/21 | 133 | 23 | 23 | 0 | 0 | 0 | 0 | 2 |
[25] † Zygiocuspis Last Modified in 11/18/21 | 133 | 23 | 23 | 0 | 0 | 0 | 0 | 2 |
[26] † Anchistodelphys Last Modified in 11/18/21 | 112 | 46 | 44 | 0 | 0 | 0 | 0 | 2 |
[27] † Iugomortiferum Last Modified in 11/18/21 | 116 | 40 | 40 | 0 | 0 | 0 | 0 | 2 |
[28] † Aenigmadelphys Last Modified in 11/18/21 | 109 | 47 | 47 | 0 | 0 | 0 | 0 | 2 |
[29] † Didelphodon Last Modified in 12/22/21 | 43 | 114 | 113 | 0 | 0 | 0 | 0 | 2 |
[30] † Eodelphis Last Modified in 12/22/21 | 67 | 92 | 89 | 0 | 0 | 0 | 0 | 2 |
[31] † Pediomys Last Modified in 12/22/21 | 51 | 110 | 105 | 0 | 0 | 0 | 0 | 2 |
[32] † Albertatherium Last Modified in 11/18/21 | 115 | 42 | 41 | 0 | 0 | 0 | 0 | 2 |
[33] † Alphadon Last Modified in 12/22/21 | 80 | 76 | 76 | 0 | 0 | 0 | 0 | 2 |
[34] † Turgidodon Last Modified in 11/18/21 | 73 | 85 | 83 | 0 | 0 | 0 | 0 | 2 |
[35] † Glasbius Last Modified in 12/22/21 | 97 | 61 | 59 | 0 | 0 | 0 | 0 | 2 |
[36] † Asiatherium Last Modified in 11/18/21 | 39 | 122 | 117 | 0 | 0 | 0 | 0 | 2 |
[37] † Mayulestes Last Modified in 11/18/21 | 23 | 133 | 133 | 0 | 0 | 0 | 0 | 2 |
[38] Borhyaenids Last Modified in 11/18/21 | 4 | 154 | 152 | 0 | 0 | 0 | 0 | 2 |
[39] † Pucadelphys Last Modified in 11/18/21 | 9 | 147 | 147 | 0 | 0 | 0 | 0 | 2 |
[40] † Andinodelphys Last Modified in 11/18/21 | 28 | 131 | 128 | 0 | 0 | 0 | 0 | 2 |
[41] † Jaskhadelphys Last Modified in 11/18/21 | 128 | 28 | 28 | 0 | 0 | 0 | 0 | 2 |
[42] Marmosa Last Modified in 12/22/21 | 0 | 156 | 156 | 0 | 0 | 0 | 0 | 2 |
[43] Didelphis Last Modified in 12/22/21 | 0 | 156 | 156 | 0 | 0 | 0 | 0 | 2 |
[44] Dasyurids Last Modified in 12/22/21 | 0 | 157 | 156 | 0 | 0 | 0 | 0 | 2 |
[45] † Dromiciops Last Modified in 12/22/21 | 5 | 151 | 151 | 0 | 0 | 0 | 0 | 2 |
[46] † Prokennalestes Last Modified in 11/18/21 | 48 | 110 | 108 | 0 | 0 | 0 | 0 | 2 |
[47] † Bobolestes Last Modified in 11/18/21 | 92 | 64 | 64 | 0 | 0 | 0 | 0 | 2 |
[48] † Asioryctes Last Modified in 11/18/21 | 8 | 149 | 148 | 0 | 0 | 0 | 0 | 2 |
[49] † Kennalestes Last Modified in 11/18/21 | 16 | 141 | 140 | 0 | 0 | 0 | 0 | 2 |
[50] † Zalambdalestes Last Modified in 11/18/21 | 5 | 156 | 151 | 0 | 0 | 0 | 0 | 2 |
[51] † Aspanlestes Last Modified in 11/18/21 | 65 | 91 | 91 | 0 | 0 | 0 | 0 | 2 |
[52] Leptictids Last Modified in 11/18/21 | 0 | 156 | 156 | 0 | 0 | 0 | 0 | 2 |
[53] † Fumodelphodon Last Modified in 11/18/21 | 135 | 21 | 21 | 0 | 0 | 0 | 0 | 2 |
[54] † Hoodootherium Last Modified in 11/18/21 | 124 | 32 | 32 | 0 | 0 | 0 | 0 | 2 |
[55] † Aquiladelphis Last Modified in 11/18/21 | 112 | 44 | 44 | 0 | 0 | 0 | 0 | 2 |
[56] Scalaria Last Modified in 12/22/21 | 111 | 46 | 45 | 0 | 0 | 0 | 0 | 2 |
[57] † Dakotadens Last Modified in 11/18/21 | 119 | 37 | 37 | 0 | 0 | 0 | 0 | 2 |
[58] † Protolambda Last Modified in 11/18/21 | 108 | 48 | 48 | 0 | 0 | 0 | 0 | 2 |
[59] † Leptalestes Last Modified in 12/22/21 | 108 | 48 | 48 | 0 | 0 | 0 | 0 | 2 |
Project views
type | number of views | Individual items viewed (where applicable) |
Total project views | 8236 | |
Project overview | 451 | |
Matrix views | 394 | Matrix landing page (363 views); Data matrix (31 views); |
Media views | 1413 | Media search (1201 views); M834898 (212 views); |
Bibliography | 277 | |
Views for media list | 470 | |
Specimen list | 737 | |
Taxon list | 4488 | |
Documents list | 6 |
Project downloads
type | number of downloads | Individual items downloaded (where applicable) |
Total downloads from project | 41 | |
Project downloads | 40 | |
Matrix downloads | 1 | Data matrix (1 download); |