Glishades ericksoni, a new hadrosauroid (Dinosauria: Ornithopoda) from the Late Cretaceous of North America

Zootaxa ◽  
2010 ◽  
Vol 2452 (1) ◽  
pp. 1 ◽  
Author(s):  
ALBERT PRIETO-MÁRQUEZ
Keyword(s):  
United States Of America ◽  
Upper Cretaceous ◽  
New Genus ◽  
Ventral Surface ◽  
The United States ◽  
Maximum Parsimony Analysis ◽  
Unique Combination ◽  
Parsimony Analysis ◽  
New Genus And Species ◽  
Parasagittal Plane

A new genus and species of hadrosauroid dinosaur, Glishades ericksoni, is described based on paired partial premaxillae collected from the Upper Cretaceous Two Medicine Formation of Montana, in the Western Interior of the United States of America. This taxon is diagnosed on the basis of a unique combination of characters: absence of everted oral margin, arcuate oral margin with wide and straight, obliquely oriented, and undeflected anterolateral corner, grooved transversal thickening on ventral surface of premaxilla posterior to denticulate oral margin, and foramina on anteromedial surface above oral edge and adjacent to proximal end of narial bar. Maximum parsimony analysis positioned G. ericksoni as a derived hadrosauroid. Exclusion of G. ericksoni from Hadrosauridae was unambiguously supported by the lack in AMNH 27414 of a dorsomedially reflected premaxillary oral margin. Furthermore, the maximum agreement subtree positioned G. ericksoni as the sister taxon to Bactrosaurus johnsoni. This position was unambiguously supported by posteroventral thickening on the ventral surface of the premaxilla (independently derived in saurolophid hadrosaurids and Ouranosaurus nigeriensis) and having foramina on each premaxilla on the anterior surface, adjacent to the parasagittal plane of the rostrum (reconstructed as independently derived in Brachylophosaurus canadensis, Maiasaura peeblesorum, and Edmontosaurus annectens).

A new basal iguanodont (Dinosauria: Ornithischia) from the Wealden (Lower Cretaceous) of England

Zootaxa ◽  
2010 ◽  
Vol 2569 (1) ◽  
pp. 1 ◽  
Author(s):  
ANDREW T. MCDONALD ◽  
PAUL M. BARRETT ◽  
SANDRA D. CHAPMAN
Keyword(s):  
Lateral Surface ◽  
Lower Cretaceous ◽  
New Genus ◽  
Ventral Surface ◽  
Unique Combination ◽  
New Genus And Species ◽  
Additional Material ◽  
Nomen Dubium

A nearly complete right dentary originally noted by Mantell in 1848 is redescribed. The specimen, NHMUK 28660, was discovered in a quarry near Cuckfield, West Sussex, from the same formation as the original teeth of Iguanodon anglicus. Fresh examination reveals that NHMUK 28660 exhibits a single autapomorphy (a row of foramina extending from the ventral surface of the symphysis onto the lateral surface of the dentary) and a unique combination of characters that distinguish it from all other iguanodontian dentaries. In light of this and because I. anglicus is regarded as a nomen dubium to which additional material cannot be unambiguously referred, NHMUK 28660 is made the holotype of the new genus and species Kukufeldia tilgatensis.

Terlinguachelys fischbecki, a new genus and species of sea turtle (Chelonioidea: Protostegidae) from the Upper Cretaceous of Texas

2004 ◽  
Vol 78 (6) ◽  
pp. 1163-1178 ◽  
Author(s):  
Thomas M. Lehman ◽  
Susan L. Tomlinson
Keyword(s):  
National Park ◽  
Upper Cretaceous ◽  
New Genus ◽  
Sea Turtles ◽  
Sea Turtle ◽  
Unique Combination ◽  
New Genus And Species ◽  
Big Bend National Park ◽  
Big Bend ◽  
Lower Jaw

Remains of a large sea turtle, Terlinguachelys fischbecki n. gen. and sp., were recovered from paralic deposits of the Upper Cretaceous (Campanian) Aguja Formation in Big Bend National Park, Texas. T. fischbecki is a primitive protostegid that retains a constricted humerus, well ossified plastron and costals, prominent retroarticular process on the lower jaw, and long slender femora; however, it has some features, such as a prominent tubercle at the base of the scapular acromion process, found elsewhere only in derived leatherback sea turtles. The unique combination of primitive and derived traits in T. fischbecki illustrates further diversity among Cretaceous sea turtles and another case of parallelism common in sea turtle phylogeny.

scholarly journals A new nodosaurid ankylosaur (Dinosauria: Thyreophora) from the Upper Cretaceous Menefee Formation of New Mexico

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e5435 ◽  
Author(s):  
Andrew T. McDonald ◽  
Douglas G. Wolfe
Keyword(s):  
New Mexico ◽  
Fossil Record ◽  
Upper Cretaceous ◽  
New Genus ◽  
Western United States ◽  
Unique Combination ◽  
New Genus And Species ◽  
San Juan Basin ◽  
History Of ◽  
Lower Campanian

Nodosauridae is a clade of armored dinosaurs with a rich fossil record and long history of study in North America. Nodosaurid fossils have been collected throughout the western United States and Canada. Here, we report three new nodosaurid specimens from the Upper Cretaceous (lower Campanian) Allison Member of the Menefee Formation, San Juan Basin, northwestern New Mexico. The three specimens belong to a new genus and species,Invictarx zephyri, characterized by a unique combination of features pertaining to the morphology of the osteoderms. Among the three specimens there are representative cervical/pectoral and thoracic osteoderms, as well as components of a probable co-ossified pelvic shield. The new tax on is most similar toGlyptodontopelta mimusfrom the Maastrichtian of New Mexico.

Chaltenia patagonica, new genus and species belonging to Chalteniina, a new subtribe of Zolini (Coleoptera: Carabidae)

2001 ◽  
Vol 133 (5) ◽  
pp. 651-670 ◽  
Author(s):  
Sergio Roig-Juñent ◽  
Armando C. Cicchino
Keyword(s):  
New Genus ◽  
Large Degree ◽  
Ventral Surface ◽  
Structural Features ◽  
Female Genitalia ◽  
Parsimony Analysis ◽  
New Genus And Species ◽  
Male And Female ◽  
Biogeographical Pattern

AbstractBased on external structural features and on those of male and female genitalia, the monobasic carabid genus Chalteniagen.nov. is described and illustrated, along with Chaltenia patagonicasp.nov. A parsimony analysis of tribe-level taxa supports a position of this new genus within the supertribe TrecFhitae. Based on the analysis of fittest trees, the genus Chaltenia is most closely related to the tribe Zolini. Several characters, such as head with three supraorbital setae, two rows of squamosetae on ventral surface of male protarsomeres 1–2, elytral interval 8 not carinate, and glossal sclerite quadrisetose, differentiate the genus Chaltenia from the three subtribes of Zolini. Because of the large degree of difference from the previously known genera of Zolini, a new monogeneric subtribe, Chalteniina, is described in order to hold the new genus Chaltenia. The biogeographical pattern exhibited by the tribe Zolini is congruent with the biogeographical patterns of other carabids, such as the tribe Broscini, that show an amphitropical distribution.

Aldebarania arenitea, a new genus and species of Astropectinidae (Asteroidea; Echinodermata) from the Maastrichtian (Upper Cretaceous) Peedee Formation of North Carolina

1995 ◽  
Vol 69 (2) ◽  
pp. 376-380 ◽  
Author(s):  
Daniel B. Blake ◽  
Keith Sturgeon
Keyword(s):  
North Carolina ◽  
Shallow Water ◽  
Phylogenetic Relationships ◽  
Upper Cretaceous ◽  
New Genus ◽  
Water Environment ◽  
New Genus And Species ◽  
Marine Fauna ◽  
Shallow Water Environment

Aldebarania arenitea (Astropectinidae; Asteroidea; Echinodermata) is described from the Rocky Point Member of the Maastrichtian (Upper Cretaceous) Peedee Formation of North Carolina. A turbulent, shallow-water environment is suggested by sedimentary features, a diverse marine fauna, and the morphology of Aldebarania. Aldebarania appears to be a partial ecological equivalent of living Astropecten and Luidia; however, phylogenetic relationships within the Astropectinidae are unstudied and the origin of similarities is unknown.

scholarly journals A new genus and species of Sternaspidae (Annelida: Polychaeta) from the deep eastern Atlantic

2020 ◽  
Author(s):  
Dieter Fiege ◽  
Ruth Barnich
Keyword(s):  
Body Length ◽  
New Genus ◽  
Type Locality ◽  
Unique Combination ◽  
New Genus And Species ◽  
Northwest Africa ◽  
Lateral Margins ◽  
Shield Length ◽  
Southwest Africa

Based on specimens recently collected in sediments from 2700 m depth off Mauritania (Northwest Africa; type locality) and from 2700–4400 m depth off Angola (Southwest Africa), a new genus and species, Mauretanaspis longichaeta gen. et spec. nov., is described. The new genus and species are characterized by a unique combination of characters: ventro-caudal shield covered by firmly adhering sediment, lateral margins strongly bent and merging into integument; introvert hooks tapering; eight pre-shield segments; absence of peg chaetae; exceptionally long posteriormost lateral chaetae equaling body length; posterior shield chaetae equaling shield length. A comparative table of characters for all currently recognised sternaspid genera and a key to all species with ventro-caudal shield covered by firmly adhering sediment are provided.

Gymnesigobius medits (Teleostei: Gobiidae), a new gobiid genus and species from the western Mediterranean slope bottoms

Zootaxa ◽  
2019 ◽  
Vol 4651 (3) ◽  
pp. 513-530
Author(s):  
MARCELO KOVAČIĆ ◽  
FRANCESC ORDINES ◽  
SERGIO RAMIREZ-AMARO ◽  
ULRICH K. SCHLIEWEN
Keyword(s):  
New Genus ◽  
Morphological Characters ◽  
Western Mediterranean ◽  
Full Description ◽  
Unique Combination ◽  
New Genus And Species ◽  
Posterior Edge ◽  
Superior Part ◽  
Dorsal Fin ◽  
Pelvic Fin

A new genus and species of goby, Gymnesigobius medits sp. nov., is described from the western Mediterranean slope bottoms at the Balearic Islands. The new goby belongs to the Gobius-lineage (Gobiinae). Examination of the single known specimen exhibits a unique combination of morphological characters which could not be fitted to any known genus. Gymnesigobius gen. nov. is morphologically distinguished from all other genera in the Gobius-lineage by the following combination of characters: chin without fold or barbels; mouth terminal with anterior tip above horizontal level of lower eye edge; predorsal area and first dorsal fin base naked; pelvic fin anterior membrane well developed; head with anterior oculoscapular and preopercular canals, posterior oculoscapular canal absent; pores of head canals enlarged, e.g. pores α and ρ larger or of about the same size as interspaces to pore β; six transverse suborbital rows of sensory papillae, four continuous suborbital rows in front of row b, fifth row divided in three parts but in front of row b, sixth row just as superior part above row b and below pore α; longitudinal suborbital row b barely reaching forward to the vertical from posterior edge of eye. A full description of the new genus and species is provided. The new species, collected at a depth of between 344 and 364 m (mean depth of 354 m), is one of very few gobiid species found at bathyal depths. 

scholarly journals Two new genera of Cretaceous dustywings in amber from northern Myanmar (Neuroptera: Coniopterygidae)

2016 ◽  
pp. 1 ◽  
Author(s):  
Michael S. Engel
Keyword(s):  
Upper Cretaceous ◽  
New Genus ◽  
New Genera ◽  
New Genus And Species ◽  
Crown Group ◽  
Labial Palpus ◽  
Head Form

Two new genera and species are added to the fauna of dustywings (Coniopterygidae) preserved in Upper Cretaceous (earliest Cenomanian) amber of northern Myanmar, doubling the described diversity from this deposit.  One genus is of the subfamily Aleuropteryginae and described as Achlyoconis heptatrichia Engel, new genus and species.  This species is noteworthy for the infumate and patterned wings and unique presence of seven prominent setae positioned on thickenings occurring along the length of the forewing media.  Paranimboa litotes Engel, new genus and species, is representative of the subfamily Coniopteryginae and distinctive among Mesozoic groups for the unbranched Rs, among other traits.  In addition, a peculiar larva preserved alongside the holotype of P. litotes is described.  While having a prothoracic and head form similar to aleuropterygines as well as a labial palpus with only two palpomeres, diagnostic for Coniopterygidae, the antenna bears four articles rather than the two present in crown-group dustywings.  A revised key to the genera of Cretaceous Coniopterygidae is provided.

Le genre Amphiblestrella; nouveau genre de bryozoaires cheilostomes

1960 ◽  
Vol S7-II (7) ◽  
pp. 947-950
Author(s):  
Janine Prud'homme
Keyword(s):  
United States ◽  
Upper Cretaceous ◽  
New Genus ◽  
The United States

Abstract Four species described from the upper Cretaceous and Eocene of Europe and the United States are redescribed and regrouped into the new genus Amphiblestrella of the bryozoan family Calloporidae.

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