scholarly journals A new species of Cretalamna sensu stricto (Lamniformes, Otodontidae) from the Late Cretaceous (Santonian-Campanian) of Alabama, USA

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4229 ◽  
Author(s):  
Jun A. Ebersole ◽  
Dana J. Ehret
Keyword(s):  
New Species ◽  
Late Cretaceous ◽  
Sensu Stricto ◽  
Species Group ◽  
Main Cusp ◽  
Anterior Teeth ◽  
Large Numbers ◽  
Eutaw Formation ◽  
A New Species ◽  
Shed Light

Decades of collecting from exposures of the Upper Cretaceous Tombigbee Sand Member of the Eutaw Formation and Mooreville Chalk in Alabama, USA has produced large numbers of isolated Cretalamna (sensu stricto) teeth. Many of these teeth had formerly been assigned to the extinct Late Cretaceous shark Cretalamna appendiculata (Agassiz, 1843), a taxon that is now considered largely restricted to the Turonian of Europe. Recent studies have shed light on the diversity of Late Cretaceous Cretalamna (s.s.) taxa, and here we recognize a new species from Alabama, Cretalamna bryanti. The teeth of C. bryanti sp. nov. appear aligned with the members of the Cretalamna borealis species group, but can be distinguished from these other species by a combination of the following: anterior teeth with a more pronounced and triangular lingual root protuberance, broader triangular cusp, and a taller root relative to the height of the crown; anteriorly situated lateroposterior teeth have a distally inclined or hooked main cusp and more than one pair of lateral cusplets; and lateroposterior teeth have a strong distally hooked main cusp and a root that is largely symmetrical in basal view. At present, C. bryanti sp. nov. is stratigraphically confined to the Santonian/Campanian Dicarinella asymetrica Sigal, 1952 and Globotruncanita elevata Brotzen, 1934 Planktonic Foraminiferal Zones within the Tombigbee Sand Member of the Eutaw Formation and Mooreville Chalk, and teeth have been collected from only four counties in central and western Alabama. The recognition of C. bryanti sp. nov. in Alabama adds to our knowledge on the diversity and distribution of Late Cretaceous otodontids in the region.

scholarly journals Genetic delimitation of Pristimantis orestes (Lynch, 1979) and P. saturninoi Brito et al., 2017 and description of two new terrestrial frogs from the Pristimantis orestes species group (Anura, Strabomantidae)

ZooKeys ◽  
2019 ◽  
Vol 864 ◽  
pp. 111-146
Author(s):  
Veronica L. Urgiles ◽  
Paul Székely ◽  
Diana Székely ◽  
Nicholas Christodoulides ◽  
Juan C. Sanchez-Nivicela ◽  
...  
Keyword(s):  
New Species ◽  
Genetic Data ◽  
Sensu Stricto ◽  
Species Group ◽  
Morphological Data ◽  
Dorsal Skin ◽  
Type Series ◽  
Species Groups ◽  
Genetic Assessment ◽  
A New Species

In the genus Pristimantis, species are often combined into taxonomic units called species groups. The taxonomy of these groups is frequently inaccurate due to the absence of genetic data from type series and repeated misidentifications generated by high morphological resemblance between taxa. Here, we focus on the P.orestes species group, providing the first genetic assessment of P.orestes sensu stricto from individuals collected from the type locality, with a reviewed diagnosis and description of advertisement calls. We find that two lineages previously named P.orestes are genetically distinct and should be separated into two different species. Based on genetic and morphological data, we name one of these species P.cajanumasp. nov. This new species is morphologically distinct from other members of the group by having shagreen dorsal skin, evident dorsolateral folds, broader discs on toes and fingers and pale gray ventral coloration. Additionally, P.saturninoi is placed within the P.orestes species group based on genetic data from its type series. However, we find that one of its paratypes is genetically distinct and belongs to a clade containing a new species we name P.quintanaisp. nov. This new species is morphologically distinguished by lacking a tympanic membrane and vocal sacs in males, and by having expanded discs on toes and fingers, finely tuberculated dorsal skin and irregular white or cream spots in the groin and concealed surfaces of thighs. Our findings highlight the importance of providing genetic characterization and placement from the type series in taxonomic challenging groups, such as Pristimantis. We also suggest that the diversity of species within the P.orestes group will increase as more sampling is achieved in the southern Andes of Ecuador.

A new species of the Simulium (Simulium) variegatum species-group (Diptera: Simuliidae) from Thailand

Acta Tropica ◽  
2019 ◽  
Vol 191 ◽  
pp. 155-161
Author(s):  
Hiroyuki Takaoka ◽  
Wichai Srisuka ◽  
Atiporn Saeung
Keyword(s):  
New Species ◽  
Species Group ◽  
A New Species

A new species of the Simulium (Gomphostilbia) ceylonicum species-group (Diptera: Simuliidae) from Thailand

Acta Tropica ◽  
2021 ◽  
Vol 217 ◽  
pp. 105865
Author(s):  
Hiroyuki Takaoka ◽  
Wichai Srisuka ◽  
Zubaidah Ya'cob ◽  
Van Lun Low ◽  
Atiporn Saeung
Keyword(s):  
New Species ◽  
Species Group ◽  
A New Species

A new species of Liolaemus (Reptilia: Iguanidae) from San Guillermo National Park, western Argentina

Zootaxa ◽  
2006 ◽  
Vol 1361 (1) ◽  
pp. 33 ◽  
Author(s):  
JULIO C. MONGUILLOT ◽  
MARIO R. CABRERA ◽  
JUAN C. ACOSTA ◽  
JOSE VILLAVICENCIO
Keyword(s):  
New Species ◽  
National Park ◽  
Small Body ◽  
Species Group ◽  
Posterior Surface ◽  
Small Body Size ◽  
Long Tail ◽  
Sparse Vegetation ◽  
Dorsal Pattern ◽  
A New Species

A new species of Iguanidae Liolaemini lizard from the San Guillermo National Park in western Argentina, is described. The new species is a member of the Liolaemus darwinii complex within the monophyletic boulengeri species group. It is distinguished by its small body size, relatively long tail, low number of scales around midbody, dorsal scales moderately keeled, precloacal pores only in male, bulged patch of enlarged scales on the proximal posterior surface of the thigh in both sexes, dorsal pattern lacking of light vertebral or dorsolateral stripes, antehumeral fold without black pigment in female but greyish in male, a prescapular dark dot dorsal to antehumeral fold in both sexes, and postscapular spot absent. The new species is terrestrial, living in habitats with gravel and sandy soil in an Andean Monte landscape with sparse vegetation, above 2270 meters of altitude.

A new species of Tychus Leach, 1817 from Lebanon (Coleoptera, Staphylinidae, Pselaphinae)

Zootaxa ◽  
2019 ◽  
Vol 4656 (3) ◽  
pp. 596-600
Author(s):  
GIORGIO SABELLA ◽  
FABIO MASSIMO VIGLIANISI ◽  
VERA D’URSO
Keyword(s):  
New Species ◽  
Species Group ◽  
Morphological Features ◽  
A New Species

Tychus meggiolaroi sp. n. from Lebanon is described and illustrated. It belongs to the Tychus cilicicus species group (Sabella & Kurbatov 2002) and can be readily distinguished from related taxa by the different structure of the aedeagus and morphological features of antennae. 

Review of the genus Qinshuiacris (Orthoptera: Acrididae) from China with proposal of Caryanda viridis-species group and description of a new species

Zootaxa ◽  
2015 ◽  
Vol 3981 (4) ◽  
pp. 565
Author(s):  
BEN-YONG MAO ◽  
YAO NIU ◽  
ZHE-MIN ZHENG ◽  
MATTHEW B. SCOTT
Keyword(s):  
New Species ◽  
Species Group ◽  
A New Species

A new species of Oozetetes De Santis (Hymenoptera: Chalcidoidea: Eupelmidae) from Colombia with an updated key for the bucheri species-group

Zootaxa ◽  
2016 ◽  
Vol 4084 (3) ◽  
pp. 436 ◽  
Author(s):  
A. LUCIA PÉREZ-BENAVIDES ◽  
FRANCISCO SERNA ◽  
GARY A.P. GIBSON
Keyword(s):  
New Species ◽  
Species Group ◽  
A New Species

A New Species of the Scinax catharinae Species Group (Anura: Hylidae) from Minas Gerais, Southeastern Brazil

Herpetologica ◽  
2009 ◽  
Vol 65 (4) ◽  
pp. 468-479 ◽  
Author(s):  
Ana Carolina Calijorne Lourenço ◽  
Luciana Barreto Nascimento ◽  
Maria Rita Silvério Pires
Keyword(s):  
New Species ◽  
Species Group ◽  
Minas Gerais ◽  
Southeastern Brazil ◽  
A New Species

Laemophloeus souzalimai, a new species of lined flat bark beetle (Coleoptera, Cucujoidea, Laemophloeidae) from Southeast Brazil

Zootaxa ◽  
2021 ◽  
Vol 5072 (3) ◽  
pp. 278-284
Author(s):  
MATHEUS BENTO
Keyword(s):  
New Species ◽  
Bark Beetle ◽  
New World ◽  
New Records ◽  
Sensu Stricto ◽  
World Species ◽  
Paulo State ◽  
Southeast Brazil ◽  
Male Head ◽  
A New Species

Distinctive, remarkable specimens from Bauru, São Paulo state, Brazil are recognized as a new species of the genus Laemophloeus Dejean (sensu stricto), which is described and illustrated in this paper. Laemophloeus souzalimai sp. nov. is most similar to L. germaini Grouvelle and can be readily distinguished from all New World species of the genus by the dorsal color testaceous, without elytral maculae, antennal club of 6 antennomeres, genal processes anteriorly projected, male head with somewhat pedunculated eyes, and frons with a broad, V-shaped impressed line. Additionally, the preexisting key to Laemophloeus species with antennal club of 6 or more antennomeres is modified to include the new species, and new records for five Brazilian species of the genus are provided.  

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