Peer-reviewed Articles - Biology

27 downloads
1,107 views

Hörnig, Haug & Haug (2017) published a description of a new specimen of Santanmantis axelrodi MB.I.2068, an extinct species of praying mantis from the Crato Formation of Brazil. According to Hörnig, Haug & Haug (2017), the discovery of this new specimen brought...

["Evolutionary Studies","Paleontology","Zoology"]
doi:10.7717/peerj.4046
102 downloads
800 views

The upper Triassic deposits of the Selous Basin in south Tanzania have not been prospected for fossil tetrapods since the middle of last century, when Gordon M. Stockley collected two rhynchosaur bone fragments from the so called “Tunduru beds”. Here we present...

["Paleontology"]
doi:10.7717/peerj.4038
78 downloads
986 views

Desmostylia is a clade of marine mammals belonging to either Tethytheria or Perissodactyla. Rich fossil records of Desmostylia were found in the Oligocene to Miocene strata of the Northern Pacific Rim, especially in the northwestern region, which includes the Japanese...

["Paleontology","Taxonomy"]
doi:10.7717/peerj.4011
144 downloads
1,432 views

Background The family Pontoporiidae (Cetacea, Odontoceti, Inioidea) is currently represented in our oceans by just one species of diminutive dolphin (Pontoporia blainvillei, franciscana). Although P. blainvillei is limited to coastal waters of the South Atlantic...

["Paleontology"]
doi:10.7717/peerj.3991
97 downloads
882 views

The study of vertebrate ontogenies has the potential to inform us of shared developmental patterns and processes among organisms. However, fossilised ontogenies of early vertebrates are extremely rare during the Palaeozoic Era. A growth series of the Late Devonian...

["Developmental Biology","Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.3969
133 downloads
1,100 views

Background In this paper, we propose a new method, named the intervals’ method, to analyse data from finite element models in a comparative multivariate framework. As a case study, several armadillo mandibles are analysed, showing that the proposed method is useful...

["Animal Behavior","Mathematical Biology","Paleontology"]
doi:10.7717/peerj.3793
519 downloads
4,716 views

Fossils are almost always represented by hard tissues but we present here the exceptional case of a three-dimensionally preserved specimen that was ‘mummified’ (likely between 40 and 34 million years ago) in a terrestrial karstic environment. This fossil is the...

["Paleontology","Zoology"]
doi:10.7717/peerj.3861
119 downloads
1,352 views

Rodents are the most speciose group of mammals and display a great ecological diversity. Despite the greater amount of ecomorphological information compiled for extant rodent species, studies usually lack of morphological data on dentition, which has led to difficulty...

["Ecology","Paleontology"]
doi:10.7717/peerj.3646
293 downloads
1,922 views

Mosasauroid squamates represented the apex predators within the Late Cretaceous marine and occasionally also freshwater ecosystems. Proper understanding of the origin of their ecological adaptations or paleobiogeographic dispersals requires adequate knowledge of...

["Evolutionary Studies","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3782
242 downloads
1,027 views

Postcranial remains of Boreogomphodon from the Upper Triassic of North Carolina are described and compared to those of other known traversodontid cynodonts. The postcranial skeleton of Boreogomphodon is characterized by four sacral ribs, simple ribs lacking costal...

["Paleontology"]
doi:10.7717/peerj.3521
115 downloads
901 views

Pondweed bugs (Hemiptera: Mesoveliidae), considered a sister group to all other Gerromorpha, are exceedingly rare as fossils. Therefore, each new discovery of a fossil mesoveliid is of high interest, giving new insight into their early evolutionary history and...

["Ecology","Entomology","Paleontology","Taxonomy","Zoology"]
doi:10.7717/peerj.3760
281 downloads
1,876 views

Mammals as a rule have seven cervical vertebrae, a number that remains remarkably constant. Changes of this number are associated with major congenital abnormalities (pleiotropic effects) that are, at least in humans, strongly selected against. Recently, it was...

["Ecology","Evolutionary Studies","Paleontology","Veterinary Medicine","Pathology"]
doi:10.7717/peerj.3684
742 downloads
8,182 views

Protoporphyrin (PP) and biliverdin (BV) give rise to the enormous diversity in avian egg coloration. Egg color serves several ecological purposes, including post-mating signaling and camouflage. Egg camouflage represents a major character of open-nesting birds...

["Evolutionary Studies","Paleontology"]
doi:10.7717/peerj.3706
205 downloads
939 views

Most knowledge concerning Mesozoic Era floras has come from compression fossils. This has been augmented in the last 20 years by rarer permineralized material showing cellular preservation. Here, we describe a new genus of anatomically preserved gymnosperm seed...

["Paleontology","Plant Science","Taxonomy"]
doi:10.7717/peerj.3723
390 downloads
1,804 views

Locating breeding sites is definitely a key to understanding the ecological requirements and maintaining the sustainability of populations/species. Here I re-examined published specimens of an extinct baleen whale, Parietobalaena yamaokai, from the lower part of...

["Animal Behavior","Conservation Biology","Ecology","Paleontology","Zoology"]
doi:10.7717/peerj.3711

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