scholarly journals A new proteid salamander (Urodela, Proteidae) from the middle Miocene of Hambach (Germany) and implications for the evolution of the family

Palaeontology ◽  
2021 ◽  
Author(s):  
Loredana Macaluso ◽  
Andrea Villa ◽  
Thomas Mörs
Keyword(s):  
Middle Miocene ◽  
The Family

Discoasters of the Blue Clay (Middle Miocene) of Malta and Gozo

1978 ◽  
Vol 115 (1) ◽  
pp. 1-19 ◽  
Author(s):  
Minoo Hojjatzadeh
Keyword(s):  
Middle Miocene ◽  
The Family ◽  
Electron Microscopes ◽  
Scanning Electron Microscopes ◽  
Scanning Electron

SummaryTwenty-three species of the Family Discoasteraceae Vekshina, 1959 recovered from 18 samples of the Blue Clay at Fort Chambray, Gozo, and 31 samples from Fomm-Ir-Rih Bay, Malta, have been studied under light and scanning electron microscopes. Fourteen Middle Miocene species are reviewed, their stratigraphical ranges and importance as marker species discussed. Nine species are described as new. On the basis of the discoaster species present, a Middle Miocene age (NN.6 Discoaster exilis Zone – NN.7 Discoaster kugleri Zone) for the Blue Clay in Malta and Gozo is suggested.

A new argyrolagoid (Mammalia: Marsupialia) from the middle Miocene of Bolivia

1988 ◽  
Vol 62 (3) ◽  
pp. 463-467 ◽  
Author(s):  
Villarroel A. Carlos ◽  
Larry G. Marshall
Keyword(s):  
South America ◽  
Late Miocene ◽  
Adaptive Radiation ◽  
Middle Miocene ◽  
Northwest Argentina ◽  
The Family ◽  
Size And Structure

A new argyrolagoid marsupial, Hondalagus altiplanensis n. gen., n. sp., from the middle Miocene (Santacrucian–Friasian) age locality of Quebrada Honda in southernmost Bolivia represents the smallest and most specialized member of the family Argyrolagidae known. The lower molars are hypselodont and lack vertical grooves labially and lingually, and M4 is greatly reduced relative to M3. In overall size and structure, H. altiplanensis compares best with Microtragulus catamarcensis (Kraglievich, 1931) from rocks of late Miocene (Huayquerian) age in northwest Argentina. Hondalagus altiplanensis demonstrates that the adaptive radiation of argyrolagoids was much greater than previously envisioned, and that generic differentiation of known taxa occurred no later than early–middle Miocene time in South America.

scholarly journals New genus and first record of Hybotinae (Diptera: Empidoidea: Hybotidae) in middle Miocene Dominican amber

2020 ◽  
pp. 1-8 ◽  
Author(s):  
Mónica M. Solórzano-Kraemer ◽  
Xavier Delclòs ◽  
Enrique Peñalver ◽  
Bradley J. Sinclair
Keyword(s):  
Middle Miocene ◽  
New Genus ◽  
First Record ◽  
Wing Venation ◽  
New Taxon ◽  
Male And Female ◽  
Dominican Amber ◽  
The Family ◽  
Fossil Genus

A new fossil genus of the family Hybotidae is described, based on male and female specimens. The new genus is monotypic: Syneproctus caridadi gen. et sp. nov. It belongs to the subfamily Hybotinae and shares some characters with the extant genera Syneches Walker, 1852, Stenoproctus Loew, 1858 and Chillcottomyia Saigusa, 1986; however, the differences, principally in the wing venation (shortened cua cell, horizontal m-cu crossvein) and sclerotized mouthparts, support the description of a new genus. This is the first description of a new taxon of the subfamily Hybotinae from specimens preserved in Dominican amber.

A new thylacosmilid (Mammalia, Metatheria, Sparassodonta) from the Miocene of Patagonia, Argentina

Zootaxa ◽  
2010 ◽  
Vol 2552 (1) ◽  
pp. 55 ◽  
Author(s):  
ANALÍA M. FORASIEPI ◽  
ALFREDO A. CARLINI
Keyword(s):  
Middle Miocene ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Dental Morphology ◽  
New Taxon ◽  
Single Specimen ◽  
New Genus And Species ◽  
The West ◽  
Rio Negro ◽  
The Family

A new genus and species, Patagosmilus goini, of the family Thylacosmilidae (Mammalia, Metatheria, Sparassodonta) is described here. The new taxon is based on a single specimen collected from the west margin of the Río Chico, in Río Negro Province, Argentina, from the middle Miocene Colloncuran SALMA. Until now, two formally recognized species were encompassed in the family Thylacosmilidae: Thylacosmilus atrox, from the late Miocene-late Pliocene Huayquerian to Chapadmalalan SALMAof Argentina and probably Uruguay; and Anachlysictis gracilis, from the middle Miocene Laventan SALMA of Colombia. Recognition of the Patagonian taxon, Patagosmilus, provides new anatomical data, likely to be included in future phylogenetic analyses. The overall morphology of Patagosmilus suggests that it has a more generalized anatomy than Thylacosmilus. The dental morphology suggests the new Patagonian taxon was probably closer to Thylacosmilus than Anachlysictis. Saber-tooth thylacosmilids have several autapomorphic features in the skull that differentiate them from other sparassodonts, including the delayed replacement or non-replacement of the deciduous last premolar.

Fossil aphids (Hemiptera: Sternorrhyncha) from Canadian Cretaceous amber and from the Miocene of Nevada

2006 ◽  
Vol 37 (1) ◽  
pp. 91-104 ◽  
Author(s):  
Ole Heie
Keyword(s):  
New Species ◽  
Host Plant ◽  
Upper Cretaceous ◽  
Middle Miocene ◽  
Clay Shales ◽  
The Family ◽  
Three New Species

AbstractThree new species of fossil aphids are described from Canadian amber, age the Upper Cretaceous, viz. Longiradius foottitti n. gen. et n. sp., which has been referred to Palaeoaphididae, Canaphis albertensis n. gen. et n. sp. and Aphidinius constrictus n. gen. et n. sp., which have been impossible to place in any known family. Furthermore more material of Mesozoicaphis canadensis Heie, belonging to the extinct family Mesozoicaphididae, are described. At least 32 specimens of Mesozoicaphis spp. occur in the material, often more than two in the same piece of amber, making it highly probable that their host plant was the resin-producing gymnosperm. Eight new species of fossil aphids with 16 specimens are described from clay shales in Nevada, age the Middle Miocene, viz. Palaeogreenidea rittae n. gen. et n. sp. belonging to the family Greenideidae, Similidrepan pulawskii n. gen. et n. sp., Nevaphis nevadensis n. gen. et n. sp. and Americaphis longipes n. gen. et n. sp., which have placed in Drepanosiphidae, Lachnarius miocaenicus n. gen. et n. sp., which belongs to Lachnidae, and Eriosaphis leei gen. et n. sp., Eriosomaphis jesperi n. gen. et n. sp. and Eriosomaphis occidentalis n. sp., which have been placed in Eriosomatidae (= Pemphigidae).

scholarly journals New Paratethyan dwarf baleen whales mark the origin of cetotheres

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5800 ◽  
Author(s):  
Pavel Gol'din
Keyword(s):  
Late Miocene ◽  
Middle Miocene ◽  
Sensu Stricto ◽  
Anterior Lobe ◽  
New Genus And Species ◽  
Facial Bones ◽  
Baleen Whales ◽  
The Family ◽  
Juvenile Specimen ◽  
Stepwise Evolution

Background Family Cetotheriidae sensu stricto and several closely related taxa comprise the Cetotherioidea and represent a lineage of Neogene baleen whales that includes the smallest edentulous baleen whales in Earth history. Most of known cetotheriids came from the Late Miocene to Quaternary, and the earliest records from the latest Middle Miocene. The Paratethys region shows a great diversity of Middle to Late Miocene cetotheriids. That includes nominative taxon of the family, Cetotherium rathkii, and this suggests that the earliest cetotheriids may have lived in that region. Materials and methods Here, Ciuciulea davidi, a new genus and species from the Middle Miocene of southeastern Europe, is described as the chronologically earliest and earliest diverging member of Cetotheriidae. Also, a new specimen of Otradnocetus, a basal Cetotherioidea sensu Gol’din & Steeman, 2015 is identified from the Late Miocene deposits of Caucasus and compared with Otradnocetus virodovi from the Middle Miocene of the same region. Results and discussion Ciuciulea davidi is a dwarf whale displaying primitive traits: posterior ends of facial bones forming a single transverse line, a narrow occipital shield, and a relatively long interparietal region. Meanwhile, it shares some cetotheriid apomorphies: posteriorly telescoped wedge-shaped facial bones and an ovoid tympanic bulla with shallow lateral and medial furrows, a short anterior lobe and a short sigmoid process. Phylogenetic analysis suggests that Parietobalaena and Otradnocetus are branches diverging before the clade Cetotheriidae + Neobalaenidae. This is confirmed by the stepwise evolution of the anatomy of the squamosal, mandible, and ear bones across these groups. The re-described juvenile specimen of Otradnocetus differs from O. virodovi in the more primitive anatomy of the mandible and the autapomorphic anatomy of the humerus. Records of the earliest cetotheriids and related taxa in the Paratethys support the idea that this could be the region where Cetotheriidae evolved before their worldwide dispersal and radiation.

scholarly journals Small early Miocene listriodont suid (Artiodactyla: Mammalia) from Sabuncubeli (Manisa, SW Anatolia), Turkey

2020 ◽  
Vol 76 (2) ◽  
pp. 325-337
Author(s):  
Martin Pickford ◽  
Tanju Kaya ◽  
Erhan Tarhan ◽  
Derya Erylmaz ◽  
Serdar Mayda
Keyword(s):  
Late Miocene ◽  
Middle Miocene ◽  
New Genus ◽  
Morphological Features ◽  
Early Miocene ◽  
New Genus And Species ◽  
The Family

Turkey is known for the wealth of fossil suids found in deposits of middle Miocene, late Miocene and Plio-Pleistocene levels but material of this family from early Miocene and Palaeogene deposits is rare in the country, one of the few published occurrences being from Şemsettin (Kumartaş Formation, MN 4, Çankiri-Çorum Basin). For this reason, it is interesting to record the presence of small suid remains in the Soma Formation at Sabuncubeli (Manisa, SW Anatolia) in deposits correlated to MN 3 (early Miocene) and thus the earliest known Turkish members of the family. The upper and lower teeth are herein attributed to a new genus and species (Prolistriodon smyrnensis) of Listriodontinae because, in a nascent way, they show a suite of derived morphological features such as upper central incisors with apical sulci, and upper molars with lingual precrista, found in listriodonts but not in Kubanochoerinae, Palaeochoerinae, Tetracondontinae, Hyotheriinae, Namachoerinae, Cainochoerinae or Suinae.

scholarly journals Reassessment of the enigmatic ruminant Miocene genus Amphimoschus Bourgeois, 1873 (Mammalia, Artiodactyla, Pecora)

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0244661 ◽  
Author(s):  
Bastien Mennecart ◽  
Grégoire Métais ◽  
Loïc Costeur ◽  
Léonard Ginsburg ◽  
Gertrud E. Rössner
Keyword(s):  
Middle Miocene ◽  
Systematic Position ◽  
Ontogenetic Variation ◽  
Phylogenetic Information ◽  
Bony Labyrinth ◽  
Ontogenetic Stages ◽  
The Family ◽  
Sagittal Crest

Amphimoschus is an extinct Eurasian ruminant genus, mostly recorded in Europe, without a close living relative and, hence, an unknown systematic position. This genus is known from around 50 localities from the late early to the middle Miocene. Two species were described during 180 years, but since their first description during the late 19th century and early 20th century, hardly any detailed taxonomic work has been done on the genus. Over the years, extensive collecting and excavating activities have enriched collections with more and more complete material of this still rare and enigmatic animal. Most interestingly, a number of skull remains have been unearthed and are promising in terms of providing phylogenetic information. In the present paper, we describe cranial material, the bony labyrinth, the dentition through 780 teeth and five skulls from different ontogenetic stages. We cannot find a clear morphometric distinction between the supposedly smaller and older species Amphimoschus artenensis and the supposedly younger and larger species A. ponteleviensis. Accordingly, we have no reason to retain the two species and propose, following the principle of priority (ICZN chapter 6 article 23), that only A. ponteleviensis Bourgeois, 1873 is valid. Our studies on the ontogenetic variation of Amphimoschus does reveal that the sagittal crest may increase in size and a supraorbital ridge may appear with age. Despite the abundant material, the family affiliation is still uncertain.

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