Project 676: S. P. Zack, T. A. Penkrot, D. W. Krause, M. C. Maas. 2005. A new apheliscine "condylarth" mammal from the late Paleocene of Montana and Alberta and the phylogeny of hyopsodontids. Acta Palaeontologica Polonica. 50 (4):809-830.
Specimen: † Gingerichia geoteretes (UM:83932)
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Abstract

We describe a new genus, including at least two species, of apheliscine 'condylarth,' Gingerichia geoteretes from Douglass and Glennie quarries in the eastern Crazy Mountains Basin, south-central Montana, and Gingerichia hystrix from Cochrane 2, in Alberta, Canada, both late Paleocene (early Tiffanian; Ti1) sites. Gingerichia geoteretes is based on a nearly complete lower cheek dentition and is distinctive among apheliscines in lacking paraconid, metaconid, and anterior cingulid on p4 and possessing lower molars with less reduced paraconids (particularly m2 and m3) and relatively elevated trigonids. Gingerichia hystrix appears to represent a slightly older species and its morphology is slightly less specialized than that of G. geoteretes. These taxa are rare elements in the Cochrane 2 and Douglass Quarry assemblages and are the earliest known apheliscines; they therefore provide a new opportunity to elucidate both the composition and the phylogenetic relationships of the Apheliscinae and other small-bodied 'condylarths.' Phylogenetic analysis indicates that Hyopsodus and mioclaenids form a monophyletic group that excludes other taxa traditionally placed in Hyopsodontidae, including apheliscines. Accordingly, Hyopsodontidae is redefined to include the traditional contents of Mioclaenidae. Other 'hyopsodontids,' including apheliscines, form a monophyletic clade, and Apheliscidae is revived to accommodate this group. Finally, we recognize Haplaletes serior as the lower dentition of Utemylus latomius or a close relative.


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Project DOI: 10.7934/P676, http://dx.doi.org/10.7934/P676
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 28 Taxa
  • 1 Specimen
  • 59 Characters
Total size of project's media files: 13 MB

Download Project SDD File
Total scored cells: 1257
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 59
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 137
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:59/0
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MorphoBank Project 676

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    Taxonomic Overview for Matrix 'M1547' (27 Taxa)

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    [1] † Zhelestidae spp.
    Last Modified in 12/05/13
    15444400003
    [2] † Protungulatum donnae
    Last Modified in 12/05/13
    0595900003
    [3] † Bubogonia saskia
    Last Modified in 12/05/13
    33262600003
    [4] † Protoselene spp.
    Last Modified in 12/05/13
    14474500003
    [5] † Hyopsodus spp.
    Last Modified in 12/05/13
    0605900003
    [6] † Litaletes disjunctus
    Last Modified in 12/05/13
    14464500003
    [7] † Lessnessina spp.
    Last Modified in 12/05/13
    15464400003
    [8] † Promioclaenus acolytus
    Last Modified in 12/05/13
    14454500003
    [9] † Choeroclaenus turgidunculus
    Last Modified in 12/05/13
    5494905003
    [10] † Mioclaenus turgidus
    Last Modified in 12/05/13
    15383806003
    [11] † Molinodus suarezi
    Last Modified in 12/05/13
    1585701003
    [12] † Paschatherium spp.
    Last Modified in 12/05/13
    0605900003
    [13] † Dipavali petri
    Last Modified in 12/05/13
    20393900003
    [14] † Louisina atavella
    Last Modified in 12/05/13
    14454500003
    [15] † Louisina mirabilis
    Last Modified in 12/05/13
    24353500003
    [16] † Microhyus spp.
    Last Modified in 12/05/13
    14414104003
    [17] † Litomylus dissentaneus
    Last Modified in 12/05/13
    14464500003
    [18] † Aletodon spp.
    Last Modified in 12/05/13
    16454300003
    [19] † Gingerichia spp.
    Last Modified in 12/05/13
    14424203003
    [20] † Phenacodaptes sabulosus
    Last Modified in 12/05/13
    14454500003
    [21] † Apheliscus spp.
    Last Modified in 12/05/13
    0575702003
    [22] † Haplaletes disceptatrix
    Last Modified in 12/05/13
    14454500003
    [23] † Dorraletes diminutivus
    Last Modified in 12/05/13
    16434300003
    [24] † Haplomylus spp.
    Last Modified in 12/05/13
    0585801003
    [25] † Haplaletes pelicatus
    Last Modified in 12/05/13
    32272700003
    [26] † Utemylus spp.
    Last Modified in 12/05/13
    15393905003
    [27] † Aphronorus spp.
    Last Modified in 12/05/13
    14454500003


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    Taxon list7087
    Bibliography706
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    Specimen list1977
    Documents list1258




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