Cranial anatomy of a new crocodyliform (Archosauria: Crocodylomorpha) from the Lower Cretaceous of Song-Liao Plain, northeastern China

2001 ◽  
Vol 38 (12) ◽  
pp. 1653-1663 ◽  
Author(s):  
Xiao-Chun Wu ◽  
Zheng-Wu Cheng ◽  
Anthony P Russell
Keyword(s):  
Early Cretaceous ◽  
Lower Cretaceous ◽  
New Genus ◽  
Phylogenetic Analyses ◽  
Northeastern China ◽  
New Genus And Species ◽  
Anterior Border ◽  
Vertebrate Fauna ◽  
New Form

Rugosuchus nonganensis, a new genus and species of crocodyliform, is erected on the basis of its peculiar cranial features. This late Early Cretaceous species represents the second, and most complete, crocodyliform known from northeastern China. Its discovery is significant for our understanding of both the local vertebrate fauna and its stratigraphical correlations, and the paleobiogeography of the Crocodyliformes. The palatine contribution to the anterior border of the choana excludes the new form from the Eusuchia, and evidence from osteoderms (not detailed in the present paper) suggests that the new form appears to be phylogenetically closer to the Eusuchia than to the Goniopholididae. Therefore, comparisons are made primarily with those taxa which have a closer relationship to the former than the latter. The unsculpted, depressed, and lobe-like posterolateral process of the squamosal is further demonstrated to be ontogenetically variable and thus inappropriate for use as a character in phylogenetic analyses.

New record of Tettigarctidae (Insecta, Hemiptera, Cicadoidea) from the Lower Cretaceous of Brazil

Zootaxa ◽  
2005 ◽  
Vol 1087 (1) ◽  
pp. 53 ◽  
Author(s):  
FEDERICA MENON
Keyword(s):  
Southern Hemisphere ◽  
Early Cretaceous ◽  
Lower Cretaceous ◽  
New Record ◽  
New Genus ◽  
New Genus And Species ◽  
New Discovery

Tettagalma striata, new genus and species of Tettigarctidae (Hemiptera: Cicadoidea), is described from the Lower Cretaceous laminated limestones of the Crato Formation, Brazil. The new discovery represents the first certain record of this family in Brazil and confirms its presence in the Southern Hemisphere during the early Cretaceous. Architettix Hamilton, 1990, from the same formation, and all the taxa originally placed in Cicadoprosbolidae, are also included in Tettigarctidae, as the former is considered a synonym.

A new lizard skull from the Purbeck Limestone Group (Lower Cretaceous) of England

2012 ◽  
Vol 183 (6) ◽  
pp. 517-524 ◽  
Author(s):  
Susan E. Evans ◽  
Marc E. H. Jones ◽  
Ryoko Matsumoto
Keyword(s):  
Early Cretaceous ◽  
Lower Cretaceous ◽  
Late Jurassic ◽  
New Genus ◽  
Cladistic Analysis ◽  
Geological Survey ◽  
New Genus And Species ◽  
British Geological Survey ◽  
Maxillary Morphology

Abstract The Purbeck Limestone Group of England has yielded a rich assemblage of Late Jurassic to Early Cretaceous (Berriasian) vertebrate fossils, including one of the most diverse Early Cretaceous lizard assemblages on record. Here we describe the first articulated lizard skull from Purbeck. The specimen was rediscovered in the collections of the British Geological Survey, having been excavated at least a century ago. Although originally assigned to the Purbeck genus Paramacellodus, with which it shares maxillary and some dental characters, the new Purbeck skull differs from other Purbeck genera, including Paramacellodus, in frontal, pterygoid and maxillary morphology. It is here assigned to a new genus and species. Cladistic analysis groups it with Lacertoidea, unlike Paramacellodus, Becklesius and Parasaurillus which group with scincids and cordyliforms.

A new genus and species of Palaeontinidae (Insecta: Hemiptera: Cicadomorpha) from the Lower Cretaceous of southern England

Zootaxa ◽  
2008 ◽  
Vol 1751 (1) ◽  
pp. 65 ◽  
Author(s):  
BO WANG ◽  
HAICHUN ZHANG ◽  
EDMUND A. JARZEMBOWSKI
Keyword(s):  
Early Cretaceous ◽  
Lower Cretaceous ◽  
New Genus ◽  
New Genus And Species ◽  
Southern England ◽  
Wing Base ◽  
The Uk

Valdicossus chesteri, a new genus and species belonging to Palaeontinidae (Insecta, Hemiptera), is described based on a well-preserved hindwing from the Early Cretaceous Wealden Supergroup of southern England. The specimen is the first well-preserved hindwing of Palaeontinidae from the UK. It differs from other genera as follows: veins M 1 , M 2 and M 3+4 arise from stem M near wing base; vein M 3+4 unbranched; fusion between veins RP and M 1 basal of the level of wing indentation; and vein A 1 absent.

Protoliupanshania wangi, a new genus and species from the Chinese Early Cretaceous (Odonata: Aeshnoptera: Liupanshaniidae)

Zootaxa ◽  
2010 ◽  
Vol 2387 (1) ◽  
pp. 57 ◽  
Author(s):  
DI-YING HUANG ◽  
ANDRE NEL
Keyword(s):  
Early Cretaceous ◽  
Lower Cretaceous ◽  
New Genus ◽  
Current Knowledge ◽  
Yixian Formation ◽  
Wing Venation ◽  
New Genus And Species ◽  
Western Liaoning

Protoliupanshania wangi, new genus and species, is described from the Lower Cretaceous Yixian Formation of western Liaoning, China. It is probably the sister genus of the clade that comprises all other liupanshaniid genera, based on current knowledge of the wing venation of Paramesuropetala.

scholarly journals Convergent evolution of ramified antennae in insect lineages from the Early Cretaceous of Northeastern China

2016 ◽  
Vol 283 (1839) ◽  
pp. 20161448 ◽  
Author(s):  
Taiping Gao ◽  
Chungkun Shih ◽  
Conrad C. Labandeira ◽  
Jorge A. Santiago-Blay ◽  
Yunzhi Yao ◽  
...  
Keyword(s):  
Early Cretaceous ◽  
Motion Detection ◽  
Lower Cretaceous ◽  
Fossil Record ◽  
Convergent Evolution ◽  
Chemical Cues ◽  
Northeastern China ◽  
Environmental Cues ◽  
Key Innovation ◽  
Temperature Levels

Antennae are important, insect sensory organs that are used principally for communication with other insects and the detection of environmental cues. Some insects independently evolved ramified (branched) antennae, which house several types of sensilla for motion detection, sensing olfactory and chemical cues, and determining humidity and temperature levels. Though ramified antennae are common in living insects, occasionally they are present in the Mesozoic fossil record. Here, we present the first caddisflies with ramified antennae, the earliest known fossil sawfly, and a scorpionfly also with ramified antennae from the mid-Lower Cretaceous Yixian Formation of Northeastern China, dated at 125 million years ago (Ma). These three insect taxa with ramified antennae consist of three unrelated lineages and provide evidence for broad structural convergence that historically has been best demonstrated by features such as convergent mouthparts. In addition, ramified antennae in these Mid-Mesozoic lineages likely do not constitute a key innovation, as they are not associated with significantly increased diversification compared with closely related lineages lacking this trait, and nor are they ecologically isolated from numerous, co-occurring insect species with unmodified antennae.

scholarly journals A minute stingless bee in Eocene Fushan amber from northeastern China (Hymenoptera: Apidae)

2013 ◽  
pp. 1 ◽  
Author(s):  
Michael S. Engel ◽  
Charles D. Michener
Keyword(s):  
New World ◽  
New Genus ◽  
Stingless Bee ◽  
Northeastern China ◽  
New Genus And Species ◽  
Eocene Amber

The first fossil bee in Eocene amber of the Fushan Coalfield, Liaoning, China is described and figured.  Exebotrigona velteni Engel & Michener, new genus and species (Apinae: Meliponini) is based on a stingless bee worker and is remarkably similar in several apomorphic traits to the species of the New World genus Trigonisca Moure s.l.  The diversity of fossil and subfossil Meliponini is briefly summarized, as are the characters and possible affinities of Exebotrigona.

A remarkable new genus and species of the planktonic shrimp family Luciferidae (Crustacea, Decapoda) from the Cretaceous (Aptian/Albian) of the Araripe Sedimentary Basin, Brazil

2018 ◽  
Vol 92 (3) ◽  
pp. 459-465 ◽  
Author(s):  
Antônio Álamo Feitosa Saraiva ◽  
Allysson Pontes Pinheiro ◽  
William Santana
Keyword(s):  
Early Cretaceous ◽  
New Genus ◽  
Sedimentary Basin ◽  
Northeastern Brazil ◽  
New Genus And Species ◽  
Calcareous Shale ◽  
The Family

AbstractA new genus and species of the planktonic shrimp family Luciferidae,Sume marcosin. gen. n. sp., is described and illustrated from material collected in calcareous shale of the late Early Cretaceous (Aptian–Albian) Romualdo Formation, Araripe Basin, northeastern Brazil. The material is very well preserved, including the antennae, stalked eyes, second and third maxillipeds, pleopods, and uropods, and represents the first described fossil of the family Luciferidae.UUID:http://zoobank.org/fdf825b8-6fe9-42ae-8fc7-73c220eec03a

scholarly journals New adherent foraminiferans from the Lower Cretaceous (Aptian) of south-central England

1986 ◽  
Vol 5 (2) ◽  
pp. 1-8 ◽  
Author(s):  
Mark A. Wilson
Keyword(s):  
New Species ◽  
Lower Cretaceous ◽  
New Genus ◽  
High Energy ◽  
Junior Synonym ◽  
New Genus And Species ◽  
South Central ◽  
Energy Environment ◽  
Three New Species

Abstract. Three new species and one new genus of adherent foraminiferans have been found within bivalve borings in cobbles from the Faringdon Sponge-gravel (Upper Aptian) of south-central England. The new genus and species, Lapillincola faringdonensis is a uniserial textulariine with an initial planispiral coil and a multiple aperture. Lapillincola gen. nov. is a remarkable homeomorph of Arenonina Barnard, which was originally described as an agglutinated form. Arenonina is shown here to actually be calcareous and perforate, and thus a junior synonym of Rectocibicides Cushman & Ponton. Acruliammina parvispira sp. nov. is another uniserial textulariine with an initial coil. Bullopora ramosa sp. nov. is an adherent polymorphinid with a branching, irregular series of adherent chambers. These foraminiferans may have used the bivalve borings as spatial refuges from the abrasive, high energy environment of the Sponge-gravel.

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