Peer-reviewed Articles - Biology

111 downloads
1,013 views

Background Tar seep deposits in South America historically are well-known for their rich record of fossil mammals, contrasting with only a few formal reports of reptile remains. Here we report a new snake fauna recovered from two tar pits from Venezuela. The fossil...

["Biogeography","Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.5402
37 downloads
261 views

The larva and female of Perigomphus basicornis are described and illustrated, and compared with the larva and female of P. pallidistylus. The larva of P. basicornis differs from that of P. pallidistylus in having sternum 8 divided in five sclerites, abdominal segments...

["Biodiversity","Conservation Biology","Entomology","Taxonomy","Freshwater Biology"]
doi:10.7717/peerj.5279
53 downloads
410 views

Ceraphronoids are some of the most commonly collected hymenopterans, yet they remain rare in the fossil record. Conostigmus talamasi Mikó and Trietsch, sp. nov. from Baltic amber represents an intermediate form between the type genus, Megaspilus, and one of the...

["Biodiversity","Entomology","Evolutionary Studies","Taxonomy","Zoology"]
doi:10.7717/peerj.5174
303 downloads
3,456 views

We describe a new iguanodontian ornithopod, Choyrodon barsboldi gen. et sp. nov. from the Albian-aged Khuren Dukh Formation of Mongolia based on several partial skeletons interpreted to represent a subadult growth stage based on osteohistological features. This...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology","Histology"]
doi:10.7717/peerj.5300
268 downloads
1,962 views

The gekkonid lizard genus Hemidactylus Oken is the second most species-rich genus of geckos with greatest diversity in the tropical regions of the world. Some species of the genus are commensal and widespread; however, there are several endemic lineages with restricted...

["Biodiversity","Evolutionary Studies","Taxonomy","Zoology"]
doi:10.7717/peerj.5341
71 downloads
502 views

In submarine canyon sediments, bacteria and nematodes dominate the benthic biomass and play a key role in nutrient cycling and energy transfer. The diversity of these communities remains, however, poorly studied. This work aims at describing the composition of...

["Biodiversity","Ecology","Marine Biology","Molecular Biology","Taxonomy"]
doi:10.7717/peerj.5396
125 downloads
665 views

Hyperphalangy is a rare condition in extant aquatic turtles, and mainly limited to soft-shelled turtles. Here we report a new freshwater turtle, Jeholochelys lingyuanensis gen. et sp. nov. from the Early Cretaceous Jehol Biota of western Liaoning, China. This new...

["Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.5371
143 downloads
2,750 views

This contribution describes seven new species of fossil stoneflies from Cretaceous Burmese amber, all of which are dedicated to present and past members of the Rolling Stones. Two species—Petroperla mickjaggeri gen. nov. sp. nov. and Lapisperla keithrichardsi gen....

["Entomology","Paleontology","Taxonomy","Freshwater Biology"]
doi:10.7717/peerj.5354
1,174 downloads
12,823 views

A partial ankylosaurid skeleton from the upper Campanian Kaiparowits Formation of southern Utah is recognized as a new taxon, Akainacephalus johnsoni, gen. et sp. nov. The new taxon documents the first record of an associated ankylosaurid skull and postcranial...

["Biodiversity","Biogeography","Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.5016
1 citation
206 downloads
693 views

The methods used to detect and describe morphologically cryptic species have advanced in recent years, owing to the integrative nature of molecular and morphological techniques required to elucidate them. Here we integrate recent phylogenomic work that sequenced...

["Biodiversity","Biogeography","Genetics","Taxonomy","Zoology"]
doi:10.7717/peerj.5334
107 downloads
560 views

At present, amphipod crustaceans comprise 9,980 species, 1,664 genera, 444 subfamilies, and 221 families. Of these, 1,940 species (almost 20%) have been discovered within the last decade, including 18 fossil records for amphipods, which mostly occurred in Miocene...

["Biodiversity","Taxonomy","Zoology"]
doi:10.7717/peerj.5187
63 downloads
633 views

Next-generation sequencing has provided powerful tools to conduct microbial ecology studies. Analysis of community composition relies on annotated databases of curated sequences to provide taxonomic assignments; however, these databases occasionally have errors...

["Bioinformatics","Ecology","Marine Biology","Microbiology","Taxonomy"]
doi:10.7717/peerj.5248
269 downloads
1,527 views

Amphibians are probably the most vulnerable group to climate change and climate-change associate diseases. This ongoing biodiversity crisis makes it thus imperative to improve the taxonomy of anurans in biodiverse but understudied areas such as Amazonia. In this...

["Biodiversity","Taxonomy","Zoology"]
doi:10.7717/peerj.4941
161 downloads
937 views

Catostomidae (“suckers”) is a diverse (76 species) and broadly distributed family of Holarctic freshwater fishes with a rich fossil record and a considerable number (∼35%) of threatened and imperiled species. We integrate DNA sequences (three mitochondrial genes,...

["Aquaculture","Fisheries and Fish Science","Evolutionary Studies","Taxonomy"]
doi:10.7717/peerj.5168
511 downloads
2,460 views

Chasmosaurine ceratopsids are well documented from the Upper Cretaceous (Campanian) Dinosaur Park Formation (DPF) of southern Alberta and Saskatchewan, and include Chasmosaurus belli, Chasmosaurus russelli, Mercuriceratops gemini, Vagaceratops irvinensis, and material...

["Evolutionary Studies","Paleontology","Taxonomy"]
doi:10.7717/peerj.5194

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