Rotaryus gothae, a New Trematopid (Temnospondyli: Dissorophoidea) from the Lower Permian of Central Germany

  title={Rotaryus gothae, a New Trematopid (Temnospondyli: Dissorophoidea) from the Lower Permian of Central Germany},
  author={David S. Berman and Amy C. Henrici and Thomas Martens and Stuart S. Sumida and Jason S. Anderson},
ABSTRACT Rotaryus gothae, a new genus and species of trematopid temnospondyl amphibian, is described on the basis of a single specimen from the Lower Permian (Wolfcampian) Tambach Formation, lowermost formational unit of the Upper Rotliegend Group or Series of the Bromacker locality in the midregion of the Thuringian Forest, central Germany. This is only the second trematopid species to be reported from not only the Bromacker locality, but also outside of North America. The holotype includes… 
Two primitive trematopid amphibians (Temnospondyli, Dissorophoidea) from the Upper Carboniferous of the Czech Republic
  • A. Milner
  • Environmental Science
    Earth and Environmental Science Transactions of the Royal Society of Edinburgh
  • 2018
ABSTRACT Specimens of trematopid amphibians from the Asturian (Upper Carboniferous) of Nýřany, Czech Republic, are redescribed as two taxa, namely Mordex calliprepes Steen and Mattauschia (gen. nov)
Character distribution and phylogeny of the dissorophid temnospondyls
The significance of osteoderms in dissorophid phylogeny is found to be much smaller than hitherto considered.
A Juvenile Specimen of the Trematopid Acheloma From Richards Spur, Oklahoma and Challenges of Trematopid Ontogeny
The complete skull and articulated mandibles of a diminutive trematopid specimen (OMNH 79318) from the Early Permian karst deposits near Richards Spur, Oklahoma is described, providing evidence that variation in otic notch structure can be ontogenetically influenced, not only among eucacopine dissorophids but also among treMatopids.
First European Record of a Varanodontine (Synapsida: Varanopidae): Member of a Unique Early Permian Upland Paleoecosystem, Tambach Basin, Central Germany
A new genus and species of varanodontine varanopid, Tambacarnifex unguifalcatus, is described on the basis of the greater portion of the postcranium and a closely associated partial left dentary from
A redescription of the late Carboniferous trematopid Actiobates peabodyi from Garnett, Kansas
High degree of conservatism indicates that the earliest trematopids were already well adapted for terrestrial environments, and post‐Carboniferous radiations of olsoniforms may be attributed to an expansion of the dryland terrestrial environments in which these taxa already thrived, rather than to novel acquisition of adaptive features later in the clade's evolution.
The Sphenacodontid Synapsid Neosaurus cynodus, and Related Material, from the Permo-Carboniferous of France
Sphenacodontid synapsids were major components of early Permian ecosystems. Despite their abundance in the North American part of Pangaea, they are much rarer in Europe. Among the few described
Cranial anatomy and systematics of Dendrerpeton cf. helogenes (Tetrapoda, Temnospondyli) from the Pennsylvanian of Joggins, revisited through micro‐CT scanning
The Joggins Fossil Cliffs constitute an upper Carboniferous (Pennsylvanian) locality in Nova Scotia (Canada). This site, known for the rich record of fossils preserved in the palaeoenvironment in
New Primitive Caseid (Synapsida, Caseasauria) from the Early Permian of Germany
A phylogenetic analysis posits the Late Pennsylvanian Eocasea martini Reisz and Fröbisch, 2014, as the basalmost member of the monophyletic Caseidae and the later occurring middle Early Permian Bromacker caseid as the sister taxon of the remaining late Early and Middle Permians members of the clade.
Size matters: the effects of ontogenetic disparity on the phylogeny of Trematopidae (Amphibia: Temnospondyli)
  • B. Gee
  • Biology
    Zoological Journal of the Linnean Society
  • 2020
A specimen-level approach and multiple subsampling permutations are taken to explore the phylogeny of the Trematopidae as a case study for assessing the effects of ontogenetic disparity on phylogenetic reconstruction in temnospondyls and urge caution in the interpretation of phylogenetic analyses for which ontogenetics disparity exists, but is unaccounted for.


A new trematopsid amphibian (Temnospondyli: Dissorophoidea) from the Lower Permian of Texas
Phonerpeton is interpreted as a small, lightly built, terrestrially adapted carnivore, and is distinguished by the presence of a semilunar curvature of the squamosal, domed parietals, an unossified sphenethmoid, long and slender mid-dorsal ribs, and a radius with a semicircular cross section.
A New Trematopid Amphibian (Temnospondyli: Dissorophoidea) from the Upper Pennsylvanian of Western Pennsylvania: Earliest Record of Terrestrial Vertebrates Responding to a Warmer, Drier Climate
ABSTRACT Fedexia striegeli, a new genus and species of trematopid temnospondyl amphibian, is described on the basis of a single specimen that includes the greater portion of the skull and articulated
Georgenthalia clavinasica, A New Genus and Species of Dissorophoid Temnospondyl from the Early Permian of Germany, and the Relationships of the Family Amphibamidae
Several features support a highly terrestrial habitus of G. clavinasica, which is consistent with the interpretation of the fossiliferous beds of the Bromacker quarry as representing an upland terrestrial environment in which limnic conditions were characterized by ephemeral lakes and ponds.
The first articulated skeleton of Dendrerpeton acadianum (Temnospondyli, Dendrerpetontidae) from the Lower Pennsylvanian locality of Joggins, Nova Scotia, and a review of its relationships
Although Dendrerpeton bears a general resemblance to the highly terrestrial dissorophoid temnospondyls and even shares with them a large squamosal embayment supported ventrally by the quadratojugal and a quadrate process, phylogenetic analysis does not support a sister-group relationship.
A new genus and species of trematopid amphibian from the Late Pennsylvanian of north-central New Mexico
ABSTRACT A new genus and species of trematopid amphibian, Anconastes vesperus, is based on partial skeletons from the Cutler Formation of El Cobre Canyon, north-central New Mexico. Lithostratigraphic
The Family Trematopsidae
The family Trematopsidae is expanded to include the genus Acheloma as well as Trematops. The former occurs in the Wichita and Putnam formations of Texas, while the latter is found in the Clear Fork
In the present analysis, Micromelerpeton is the most basal offshoot of the dissorophoids, followed by a grade towards amphibamids formed by the following successive sister groups (from the base crownwards): (1) the trematopids, (2) Ecolsonia, and (3) the Dissorophidae, the latter being the sister taxon of all analyzed Amphibamids.
The armoured dissorophid Cacops from the Early Permian of Oklahoma and the exploitation of the terrestrial realm by amphibians
The skull of C. morrisi has several features associated with predatory behaviour, indicating that this dissorophid may have been one of the top terrestrial predators of its time.
New or Little-Known Permian Vertebrates: Trematops, New Genus
Of the numerous specimens obtained from the famous Permian deposits of northern Texas the past year by the University of Chicago Expedition, none is of greater interest than one represented by a