Project 3941: H. Sues, R. R. Schoch, G. Sobral, R. B. Irmis. 2020. A new archosauriform reptile with distinctive teeth from the Middle Triassic (Ladinian) of Germany. Journal of Vertebrate Paleontology. 40 (1):e1764968.
Specimen: † Prestosuchus chiniquensis (unvouchered)
View: fossil

Abstract

Skeletal remains of a small reptile with a distinctive dentition from the Lower Keuper (Erfurt Formation; Middle Triassic, Ladinian) of the Schumann quarry near Eschenau, in the municipality of Vellberg in Baden-Württemberg, Germany, represent a new taxon of non-archosaurian archosauriforms, Polymorphodon adorfi. It is diagnosed by various craniodental autapomorphies, including mesial and distal carinae of labiolingually flattened maxillary and dentary tooth crowns with large, somewhat hook-shaped denticles aligned at distinct angle to apicobasal axis of tooth crown; premaxilla with long, leaf-shaped posterodorsal process that is slightly longer than body of element; presence of prominent lateral fossa on premaxilla anteroventral to external narial fenestra; premaxilla with five gently recurved, conical teeth; medial surface of maxilla with distinct ledge above the interdental plates; and maxilla and dentary with distinctly heterodont dentition. Phylogenetic analysis recovered Polymorphodon adorfi in a position crownward of Erythrosuchus africanus but in an unresolved polytomy with derived non-archosaurian archosauriforms such as Proterochampsidae and Euparkeria capensis and with Archosauria. The maxillary and dentary teeth of Polymorphodon adorfi differ from those of other non-archosaurian archosauriforms and indicate a different, possibly omnivorous diet, suggesting that these reptiles were more diverse in terms of feeding habits than previously assumed.


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Article DOI: 10.1080/02724634.2020.1764968

Project DOI: 10.7934/P3941, http://dx.doi.org/10.7934/P3941
This project containsMatrices
  • 1 Media
  • 1 Matrix
  • 1 Document
  • 80 Taxa
  • 1 Specimen
  • 600 Characters
Total size of project's media files: 204.23k

Download Project SDD File
Total scored cells: 26773
Total media associated with cells: 0
Total labels associated with cell media: 0
Characters
Total characters: 600
Total characters with associated media: 0
Total characters with media with labels: 0
Total character states: 1403
Total character states with associated media: 0
Total character states with media with labels:0
Total unordered/ordered characters:506/94
Currently Viewing:
MorphoBank Project 3941
  • Creation Date:
    23 February 2021
  • Publication Date:
    22 October 2021
  • Project views: 455

    Authors' Institutions

    • National Museum of Natural History, Mdina

    • National Museum of Natural History, Smithsonian Institution

    • Staatliches Museum fur Naturkunde Stuttgart

    • Natural History Museum of Utah

    • Smithsonian Institution



    Members

    member name taxa specimens media chars character
    media
    labels
    cell scorings
    (scored, NPA, "-")
    cell
    medialabels
    rules
    MorphoBank Curator
    Project Administrator
    80116000026773
    (24770, 0, 2003)
    000
    Randall Irmis
    Full membership
    0000000
    (0, 0, 0)
    000
    Rainer Schoch
    Full membership
    0000000
    (0, 0, 0)
    000
    Gabriela Sobral
    Full membership
    0000000
    (0, 0, 0)
    000
    Hans Sues
    Full membership
    0000000
    (0, 0, 0)
    000


    Taxonomic Overview for Matrix 'M27691' (80 Taxa)

    taxon unscored
    cells
    scored
    cells
    no cell
    support
    NPA
    cells
    "-" cellscell images labels on
    cell images
    member
    access
    [1] † Petrolacosaurus kansensis
    Last Modified in 10/22/21
    6447345706500none
    [2] † Acerosodontosaurus piveteaui
    Last Modified in 10/22/21
    39817016403200none
    [3] † Youngina capensis
    Last Modified in 10/22/21
    5050245605300none
    [4] † Paliguana whitei
    Last Modified in 10/22/21
    509747201700none
    [5] † Planocephalosaurus robinsonae
    Last Modified in 10/22/21
    19435434205300none
    [6] † Gephyrosaurus bridensis
    Last Modified in 10/22/21
    17139136404200none
    [7] † Cteniogenys sp.
    Last Modified in 10/22/21
    32924624002900none
    [8] † Simoedosaurus lemoinei
    Last Modified in 10/22/21
    12543242704700none
    [9] † Aenigmastropheus parringtoni
    Last Modified in 10/22/21
    56734320000none
    [10] † Protorosaurus speneri
    Last Modified in 10/22/21
    15341136304900none
    [11] † Amotosaurus rotfeldensis
    Last Modified in 10/22/21
    30426726003400none
    [12] † Macrocnemus bassanii
    Last Modified in 10/22/21
    19935632304900none
    [13] † Tanystropheus longobardicus
    Last Modified in 10/22/21
    6548042407000none
    [14] † Jesairosaurus lehmani
    Last Modified in 10/22/21
    29526825104800none
    [15] † Pamelaria dolichotrachela
    Last Modified in 10/22/21
    13343342803900none
    [16] † Azendohsaurus madagaskarensis
    Last Modified in 10/22/21
    5350849804400none
    [17] † Trilophosaurus buettneri
    Last Modified in 10/22/21
    7547143905900none
    [18] † Noteosuchus colletti
    Last Modified in 10/22/21
    44414713501200none
    [19] † Mesosuchus browni
    Last Modified in 10/22/21
    6849246404200none
    [20] † Howesia browni
    Last Modified in 10/22/21
    27830627902200none
    [21] † Eohyosaurus wolvaardti
    Last Modified in 10/22/21
    4721241180900none
    [22] † Rhynchosaurus articeps
    Last Modified in 10/22/21
    13941339905100none
    [23] † Bentonyx sidensis
    Last Modified in 10/22/21
    38618017903500none
    [24] † Prolacerta broomi
    Last Modified in 10/22/21
    2854349904200none
    [25] † K australiensis combined
    Last Modified in 10/22/21
    505858001500none
    [26] † Boreopricea funerea
    Last Modified in 10/22/21
    32225722902900none
    [27] † Proterosuchus fergusi
    Last Modified in 10/22/21
    13545942202000none
    [28] † Proterosuchus goweri
    Last Modified in 10/22/21
    3792192130600none
    [29] † Proterosuchus alexanderi
    Last Modified in 10/22/21
    17140940502300none
    [30] † "Chasmatosaurus" yuani
    Last Modified in 10/22/21
    13644843402900none
    [31] † Tasmaniosaurus triassicus
    Last Modified in 10/22/21
    51193850300none
    [32] † Koilamasuchus gonzalezdiazi
    Last Modified in 10/22/21
    57031280200none
    [33] † Fugusuchus hejiapanensis
    Last Modified in 10/22/21
    42216916601100none
    [34] † Sarmatosuchus otschevi
    Last Modified in 10/22/21
    3952061980600none
    [35] † Guchengosuchus shiguaiensis
    Last Modified in 10/22/21
    43115915201700none
    [36] † Cuyosuchus huenei
    Last Modified in 10/22/21
    4421631530500none
    [37] † GHG 7433mi
    Last Modified in 10/22/21
    46512612301200none
    [38] † Garjainia prima
    Last Modified in 10/22/21
    10447647202400none
    [39] † Garjainia madiba combined
    Last Modified in 10/22/21
    3152872750800none
    [40] † Erythrosuchus africanus
    Last Modified in 10/22/21
    5851449103200none
    [41] † Shansisuchus shansisuchus
    Last Modified in 10/22/21
    14942641603000none
    [42] † Chalishevia cothurnata
    Last Modified in 10/22/21
    52179770200none
    [43] † Youngosuchus sinensis
    Last Modified in 10/22/21
    31627827101300none
    [44] † Vancleavea campi
    Last Modified in 10/22/21
    19036836504500none
    [45] † Euparkeria capensis
    Last Modified in 10/22/21
    4155550801600none
    [46] † Dorosuchus neoetus
    Last Modified in 10/22/21
    51089890100none
    [47] † Yarasuchus deccanensis
    Last Modified in 10/22/21
    4071901820900none
    [48] † Dongusuchus efremovi
    Last Modified in 10/22/21
    57525250000none
    [49] † Proterochampsa barrionuevoi
    Last Modified in 10/22/21
    18838336803700none
    [50] † Proterochampsa nodosa
    Last Modified in 10/22/21
    41617517401000none
    [51] † Tropidosuchus romeri
    Last Modified in 10/22/21
    14644142702200none
    [52] † Cerritosaurus binsfeldi
    Last Modified in 10/22/21
    40818317701400none
    [53] † Gualosuchus reigi
    Last Modified in 10/22/21
    18240139302400none
    [54] † Chanaresuchus bonapartei
    Last Modified in 10/22/21
    6851350002900none
    [55] † Pseudochampsa ischigualastensis
    Last Modified in 10/22/21
    25433532901700none
    [56] † Rhadinosuchus gracilis
    Last Modified in 10/22/21
    51093870300none
    [57] † Archeopelta arborensis
    Last Modified in 10/22/21
    4931041020400none
    [58] † Tarjadia ruthae
    Last Modified in 10/22/21
    54258510100none
    [59] † Jaxtasuchus salomoni
    Last Modified in 10/22/21
    4301711620600none
    [60] † Doswellia kaltenbachi
    Last Modified in 10/22/21
    29228227603200none
    [61] † Parasuchus angustifrons
    Last Modified in 10/22/21
    38219819502300none
    [62] † Parasuchus hislopi
    Last Modified in 10/22/21
    7750349902400none
    [63] † Nicrosaurus kapffi
    Last Modified in 10/22/21
    21436335403000none
    [64] † Smilosuchus spp.
    Last Modified in 10/22/21
    7449548903500none
    [65] † Ornithosuchus longidens
    Last Modified in 10/22/21
    19239338501800none
    [66] † Riojasuchus tenuisceps
    Last Modified in 10/22/21
    8649748802300none
    [67] † Nundasuchus songeaensis
    Last Modified in 10/22/21
    3772172090800none
    [68] † Turfanosuchus dabanensis
    Last Modified in 10/22/21
    19239939101400none
    [69] † Gracilisuchus stipanicicorum
    Last Modified in 10/22/21
    12546144502400none
    [70] † Aetosauroides scagliai
    Last Modified in 10/22/21
    23236835401400none
    [71] † Batrachotomus kupferzellensis
    Last Modified in 10/22/21
    11846545802100none
    [72] † Prestosuchus chiniquensis
    Last Modified in 10/22/21
    6252251402100none
    [73] † Dimorphodon macronyx
    Last Modified in 10/22/21
    27528728204300none
    [74] † Lagerpeton chanarensis
    Last Modified in 10/22/21
    45612912801600none
    [75] † Marasuchus lilloensis
    Last Modified in 10/22/21
    29728828002100none
    [76] † Lewisuchus admixtus
    Last Modified in 10/22/21
    35024223501400none
    [77] † Silesaurus opolensis
    Last Modified in 10/22/21
    11145944303900none
    [78] † Heterodontosaurus tucki
    Last Modified in 10/22/21
    6447847206000none
    [79] † Herrerasaurus ischigualastensis
    Last Modified in 10/22/21
    5951249604100none
    [80] † Polymorphodon
    Last Modified in 10/22/21
    41716916901400none


    Project views

    type number of views Individual items viewed (where applicable)
    Total project views455
    Matrix views30Matrix landing page (28 views); Data matrix from supplement of correction (2 views);
    Media views73Media search (63 views); M824087 (10 views);
    Documents list26
    Project overview35
    Views for media list24
    Specimen list41
    Taxon list213
    Bibliography13




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    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project5
    Document downloads1Data matrix in NEX format from supplement of correction (1 download);
    Project downloads4