 Subjects -> PALEONTOLOGY (Total: 46 journals)
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- A new species of the genus Glaesotropis Gratshev and Zherikhin, 1995
(Coleoptera, Anthribidae) from Rovno amber
Abstract: A new species of the genus Glaesotropis Gratshev and Zherikhin, 1995 (Coleoptera, Anthribidae) from Rovno amber
Andrei A. Legalov, Vitaliy Y. Nazarenko, and Evgeny E. Perkovsky
Foss. Rec., 24, 1–7, https://doi.org/10.5194/fr-24-1-2021, 2021
Glaesotropis rohdendorfi sp. nov. belongs to the subgenus Electranthribus, described from Eocene Rovno amber. The new species is similar to G. zherikhini from Baltic amber. It is the first described beetle from the Olevsk amber locality, the sixth amber species reported from the Zhytomyr region, the first record of the subgenus Electranthribus, and the third Anthribidae from Rovno amber. An aggregation of glaesacarid mites as a syninclusion with the fungus weevil is reported for the first time.
PubDate: 2021-01-14T13:06:31+01:00
- †Cretolixon – a remarkable new genus of rhopalosomatid wasps
(Hymenoptera: Vespoidea: Rhopalosomatidae) from chemically tested,
mid-Cretaceous Burmese (Kachin) amber supports the monophyly of
Rhopalosomatinae
Abstract: †Cretolixon – a remarkable new genus of rhopalosomatid wasps (Hymenoptera: Vespoidea: Rhopalosomatidae) from chemically tested, mid-Cretaceous Burmese (Kachin) amber supports the monophyly of Rhopalosomatinae
Volker Lohrmann, Qi Zhang, Peter Michalik, Jeremy Blaschke, Patrick Müller, Laurent Jeanneau, and Vincent Perrichot
Foss. Rec., 23, 215–236, https://doi.org/10.5194/fr-23-215-2020, 2020
A new mid-Cretaceous rhopalosomatid wasp, Cretolixon alatum Lohrmann gen. et sp. nov., is described from Burmese (Kachin) amber. The new genus has a unique mixture of characters, some of which are only known from the recent brachypterous genus Olixon and others of which are known only from the recent macropterous genera. Thus, Cretolixon not only provides further evidence for the monophyly of the family but also contributes evidence for the monophyly of the Rhopalosomatinae.
PubDate: 2020-12-11T11:55:19+01:00
- The youngest occurrence of embolomeres (Tetrapoda: Anthracosauria) from
the Sunjiagou Formation (Lopingian, Permian) of North China
Abstract: The youngest occurrence of embolomeres (Tetrapoda: Anthracosauria) from the Sunjiagou Formation (Lopingian, Permian) of North China
Jianye Chen and Jun Liu
Foss. Rec., 23, 205–213, https://doi.org/10.5194/fr-23-205-2020, 2020
In this paper, we describe a new species of embolomere from 255-million-year-old fossil beds from northern China. This group of ancient animals is closely related to amniotes (reptiles, birds, and mammals) and was previously thought to have gone extinct around 273 million years ago. The new discovery indicates that North China, with its ancient tropical rain forest, became a last reservoir for these animals right before the end-Permian mass extinction.
PubDate: 2020-12-01T12:05:39+01:00
- New genus of the tribe Ceutorhynchini (Coleoptera: Curculionidae) from the
late Oligocene of Enspel, southwestern Germany, with a remark on the role
of weevils in the ancient food web
Abstract: New genus of the tribe Ceutorhynchini (Coleoptera: Curculionidae) from the late Oligocene of Enspel, southwestern Germany, with a remark on the role of weevils in the ancient food web
Andrei A. Legalov and Markus J. Poschmann
Foss. Rec., 23, 197–204, https://doi.org/10.5194/fr-23-197-2020, 2020
The new weevil Igneonasus rudolphi gen. et sp. nov. of the tribe Ceutorhynchini is described from the late Oligocene of Fossillagerstätte Enspel, Germany. The new genus is similar to the Recent genus Stenocarus and the largest representative of the supertribe Ceutorhynchitae. It is the first fossil Curculionidae species described from the paleolake Enspel. In this ancient ecosystem, weevils were at least sometimes an important food resource for the cyprinid fish Palaeorutilus enspelensis.
PubDate: 2020-11-23T08:33:46+01:00
- A new wing skeleton of Forfexopterus (Pterosauria: Ctenochasmatidae) from
the Early Cretaceous Jehol Biota reveals a developmental variation
Abstract: A new wing skeleton of Forfexopterus (Pterosauria: Ctenochasmatidae) from the Early Cretaceous Jehol Biota reveals a developmental variation
Chang-Fu Zhou, Jiahao Wang, and Ziheng Zhu
Foss. Rec., 23, 191–196, https://doi.org/10.5194/fr-23-191-2020, 2020
Filter-feeding ctenochasmatid pterosaurs flourished in the Jehol Biota. Here, a new wing skeleton of the ctenochasmatid Forfexopterus is described from the Early Cretaceous Jiufotang Formation in Jianchang, western Liaoning, China. Interestingly, it exhibits a skeletal maturity with co-ossified elements, but it is only about 75 % the size of the immature holotype, revealing a developmental variation of Forfexopterus.
PubDate: 2020-10-09T11:36:45+02:00
- An ankylosaurian dinosaur from the Cenomanian Dunvegan Formation of
northeastern British Columbia, Canada
Abstract: An ankylosaurian dinosaur from the Cenomanian Dunvegan Formation of northeastern British Columbia, Canada
Victoria M. Arbour, Derek Larson, Matthew Vavrek, Lisa Buckley, and David Evans
Foss. Rec., 23, 179–189, https://doi.org/10.5194/fr-23-179-2020, 2020
We describe the first dinosaur skeletal fossils from the Dunvegan Formation of British Columbia, collected near the Pine River in 1930. These are some of the oldest dinosaur body fossils from British Columbia and western Canada. We identify these bones as partial dorsal vertebrae and ribs from an ankylosaur; ankylosaur footprints are some of the most common fossils in this formation and in this region.
PubDate: 2020-09-01T13:56:47+02:00
- The first record of Brentidae (Coleoptera) in Eocene Rovno amber with
description of a new fossil species of Toxorhynchus Scudder, 1893
Abstract: The first record of Brentidae (Coleoptera) in Eocene Rovno amber with description of a new fossil species of Toxorhynchus Scudder, 1893
Andris Bukejs and Andrei A. Legalov
Foss. Rec., 23, 169–177, https://doi.org/10.5194/fr-23-169-2020, 2020
A new pear-shaped weevil, Toxorhynchus europeoeocenicus Bukejs et Legalov, sp. nov. (Coleoptera: Brentidae: Apioninae), is described from upper Eocene Rovno amber using X-ray microcomputed tomography (µCT). The new fossil species differs from the extinct Toxorhynchus robustus Poinar et Legalov, 2015 (Dominican amber, lower Miocene) in the larger body size, narrower elytral striae, and wider pronotum. It is the first record of the family Brentidae in Rovno amber and the first record of the genus Toxorhynchus in the eastern hemisphere (urn:lsid:zoobank.org:pub:8FB7B299-EE75-4556-B4EA-203A3CBED84C).
PubDate: 2020-08-10T15:00:30+02:00
- An unfamiliar physeteroid periotic (Cetacea: Odontoceti) from the German
middle–late Miocene North Sea basin at Groß Pampau
Abstract: An unfamiliar physeteroid periotic (Cetacea: Odontoceti) from the German middle–late Miocene North Sea basin at Groß Pampau
Irene Montañez-Rivera and Oliver Hampe
Foss. Rec., 23, 151–168, https://doi.org/10.5194/fr-23-151-2020, 2020
The locality of Groß Pampau in northern Germany is famous for its rich marine mammal assemblage of the Miocene age. A newly discovered ear bone of a fossil sperm whale is described here with morphological characters so far unknown from other sperm whales. It remains unclear at this point if it could belong to a sperm whale whose fragments were discovered in the same locality or to another, already-described taxon, of which the ear bones are still unknown.
PubDate: 2020-08-06T08:40:24+02:00
- A revision of Ophidiaster davidsoni de Loriol and Pellat 1874 from the
Tithonian of Boulogne (France) and its transfer from the Valvatacea to the
new forcipulatacean genus Psammaster gen. nov.
Abstract: A revision of Ophidiaster davidsoni de Loriol and Pellat 1874 from the Tithonian of Boulogne (France) and its transfer from the Valvatacea to the new forcipulatacean genus Psammaster gen. nov.
Marine Fau, Loïc Villier, Timothy A. M. Ewin, and Andrew S. Gale
Foss. Rec., 23, 141–149, https://doi.org/10.5194/fr-23-141-2020, 2020
Forcipulatacea is one of the major clades of extant sea stars with 400 extant species described, but with fewer than 25 fossil species known. Thus, the identification of any new fossil representatives is significant. We reappraise Ophidiaster davidsoni from the Tithonian of Boulogne, France, which was assigned to another major extant group, and reassign it within a new forcipulatacean genus Psammaster gen. nov. A phylogenetic analysis does not place it within any existing forcipulatacean family.
PubDate: 2020-07-28T15:02:32+02:00
- Two new species of Mennerotodus Zhelezko, 1994 (Chondrichthyes:
Lamniformes: Odontaspididae), from the Paleogene of the southeastern
United States
Abstract: Two new species of Mennerotodus Zhelezko, 1994 (Chondrichthyes: Lamniformes: Odontaspididae), from the Paleogene of the southeastern United States
David J. Cicimurri, Jun A. Ebersole, and George Martin
Foss. Rec., 23, 117–140, https://doi.org/10.5194/fr-23-117-2020, 2020
Mennerotodus is a genus of fossil shark that lived during the Paleogene Period, between 65 and 38 million years ago, and was previously known only from Asia and Europe. In this study, new species of Mennerotodus have been identified in the USA from Alabama (Mennerotodus mackayi) and South Carolina (Mennerotodus parmleyi). Mennerotodus mackayi is the oldest of the species, suggesting the genus originated in the Gulf Coastal Plain of the USA during the Paleocene Epoch (~ 65 million years ago).
PubDate: 2020-07-22T11:01:27+02:00
- Description of the male of fossil Calomicrus eocenicus Bukejs et Bezděk
(Coleoptera: Chrysomelidae: Galerucinae) from Eocene Baltic amber using
X-ray microtomography
Abstract: Description of the male of fossil Calomicrus eocenicus Bukejs et Bezděk (Coleoptera: Chrysomelidae: Galerucinae) from Eocene Baltic amber using X-ray microtomography
Andris Bukejs, Jan Bezděk, Vitalii I. Alekseev, Kristaps Kairišs, and Ryan C. McKellar
Foss. Rec., 23, 105–115, https://doi.org/10.5194/fr-23-105-2020, 2020
A male of the extinct leaf-beetle species Calomicrus eocenicus embedded in Baltic amber is found and compared with an earlier known female. The beetle genitalia are illustrated in detail using X-ray microtomography. The male is smaller than female and has a modified last abdominal segment. The extinct species (about 40 million years old) possesses typical sexual characters which are similar to the characters of extant beetles within the group.
PubDate: 2020-06-11T07:36:45+02:00
- A new fossil species of Attagenus Latreille (Coleoptera: Dermestidae) in
Rovno and Baltic ambers, with a brief review of known fossil beetles from
the Rovno amber Lagerstätte
Abstract: A new fossil species of Attagenus Latreille (Coleoptera: Dermestidae) in Rovno and Baltic ambers, with a brief review of known fossil beetles from the Rovno amber Lagerstätte
Andris Bukejs, Jiří Háva, and Vitalii I. Alekseev
Foss. Rec., 23, 95–104, https://doi.org/10.5194/fr-23-95-2020, 2020
New fossil species of skin beetles (Dermestidae) from two bioinclusions in Eocene ambers (Baltic and Rovno) are described and compared with extinct and extant congeners. The affinity of the Rovno and Baltic amber varieties is briefly reviewed. The checklist of the described beetles (57 species) from Rovno amber is compiled and presented for the first time.
PubDate: 2020-05-14T07:48:44+02:00
- An alternative interpretation of Peltochelys duchastelii as a
paracryptodire
Abstract: An alternative interpretation of Peltochelys duchastelii as a paracryptodire
Walter G. Joyce and Yann Rollot
Foss. Rec., 23, 83–93, https://doi.org/10.5194/fr-23-83-2020, 2020
Peltochelys duchastelii is an enigmatic fossil turtle from the Early Cretaceous of Bernissart, Belgium. Here we provide an alternative interpretation of the morphology of this turtle, which suggests for the first time relationships with paracryptodires, a now extinct group of turtles known from coeval deposits throughout western Europe and North America.
PubDate: 2020-05-14T07:48:44+02:00
- A new Eocene genus of the subtribe Tylodina (Coleoptera: Curculionidae)
and notes concerning local differences of Baltic amber in the Kaliningrad
Region
Abstract: A new Eocene genus of the subtribe Tylodina (Coleoptera: Curculionidae) and notes concerning local differences of Baltic amber in the Kaliningrad Region
Andris Bukejs, Vitalii I. Alekseev, and Andrei A. Legalov
Foss. Rec., 23, 75–81, https://doi.org/10.5194/fr-23-75-2020, 2020
We describe a new species and genus of weevils, Baltacalles triumurbium, from the Eocene amber of the Sambia Peninsula (Kaliningrad Region, Russia). The new fossil represents the first Eocene representative of the group. In addition to the taxonomic work, the locally distinct deposits of Baltic amber in the Kaliningrad Region are listed, discussed, photographed and mapped. The importance of the possible exact labeling of the amber material is underlined.
PubDate: 2020-04-17T13:34:03+02:00
- A new, rare and small “lobeattid” species (Insecta: Archaeorthoptera)
found at Xiaheyan (Pennsylvanian; Ningxia, China)
Abstract: A new, rare and small “lobeattid” species (Insecta: Archaeorthoptera) found at Xiaheyan (Pennsylvanian; Ningxia, China)
Lu Chen, Dong Ren, and Olivier Béthoux
Foss. Rec., 23, 71–74, https://doi.org/10.5194/fr-23-71-2020, 2020
A new species of stem Orthoptera, namely Phtanomiamia gui gen. et sp. nov., is described from the Pennsylvanian Xiaheyan locality in China. Despite the intensive collecting efforts undertaken at this locality, a single forewing was recovered. It shares with the “lobeattid” Miamia spp. two peculiar traits, namely a broad ScP–R/RA area and a very early branching of CuA + CuPa. On the other hand, it displays a free portion of CuA (between its divergence from M + CuA and its fusion with CuPa), a trait allowing exclusion of the new species from Miamia, to which it is most likely very closely related.
PubDate: 2020-04-08T07:59:50+02:00
- Aras Valley (northwest Iran): high-resolution stratigraphy of a continuous
central Tethyan Permian–Triassic boundary section
Abstract: Aras Valley (northwest Iran): high-resolution stratigraphy of a continuous central Tethyan Permian–Triassic boundary section
Jana Gliwa, Abbas Ghaderi, Lucyna Leda, Martin Schobben, Sara Tomás, William J. Foster, Marie-Béatrice Forel, Nahideh Ghanizadeh Tabrizi, Stephen E. Grasby, Ulrich Struck, Ali Reza Ashouri, and Dieter Korn
Foss. Rec., 23, 33–69, https://doi.org/10.5194/fr-23-33-2020, 2020
The Permian–Triassic boundary section of the Aras Valley (NW Iran) shows a complete sedimentary succession, bearing great potential for studying the change of environmental conditions that paralleled the end-Permian mass extinction. The lithological succession; carbonate microfacies characteristics; stable isotope dynamics; and conodont, ostracod, and ammonoid stratigraphy allow for a detailed study of the chronological succession of the events.
PubDate: 2020-02-21T15:27:39+01:00
- Sampling fossil floras for the study of insect herbivory: how many leaves
is enough'
Abstract: Sampling fossil floras for the study of insect herbivory: how many leaves is enough'
Sandra R. Schachat, S. Augusta Maccracken, and Conrad C. Labandeira
Foss. Rec., 23, 15–32, https://doi.org/10.5194/fr-23-15-2020, 2020
Insects have been feeding on plants for over 300 million years. The fossil record preserves evidence of this behavior: it is possible to examine a fossilized leaf and see the spots where insects ate it or laid their eggs in it. The study of these insect traces on leaves shows us how insects have adapted to changing climates. Here, we address the question of how many leaves from a single fossil locality must be examined to permit statistically robust comparisons in deep time.
PubDate: 2020-02-21T15:27:39+01:00
- A new species of baenid turtle from the Early Cretaceous Lakota Formation
of South Dakota
Abstract: A new species of baenid turtle from the Early Cretaceous Lakota Formation of South Dakota
Walter G. Joyce, Yann Rollot, and Richard L. Cifelli
Foss. Rec., 23, 1–13, https://doi.org/10.5194/fr-23-1-2020, 2020
Baenids are a group of fossil turtles with a rich fossil record that spans from the Late Cretaceous (Campanian) to Eocene of North America. Only a few fossils are known that document the early evolution of the group. We here describe a new species of baenid, Lakotemys australodakotensis, from the Early Cretaceous (Berriasian to Valanginian) Lakota Formation of South Dakota, USA. Phylogenetic analysis suggests that this is the oldest known baenid turtle.
PubDate: 2020-02-12T15:24:30+01:00
- On the first Silis Charpentier, 1825 from Baltic amber (Coleoptera,
Cantharidae)
Abstract: On the first Silis Charpentier, 1825 from Baltic amber (Coleoptera, Cantharidae)
Francesco Parisi and Fabrizio Fanti
Foss. Rec., 22, 119–123, https://doi.org/10.5194/fr-22-119-2019, 2019
Only in recent years have new genera and species of the subfamily Silinae Mulsant, 1862 been described as inclusions in amber. However, no representative of the genus Silis Charpentier, 1825 had been described from Baltic amber, even if few specimens were already known at the generic level. Silis lombardii sp. nov. is entirely dark brown and shows (as usual for the genus) the two characteristic lobes in the sides of pronotum, elongated elytra, and a basal small tooth only on the anterior claws.
PubDate: 2019-11-15T15:11:23+01:00
- The second fossil species of Cathartosilvanus (Coleoptera: Cucujoidea:
Silvanidae) from Eocene Baltic amber
Abstract: The second fossil species of Cathartosilvanus (Coleoptera: Cucujoidea: Silvanidae) from Eocene Baltic amber
Vitalii I. Alekseev, Andris Bukejs, and Ryan C. McKellar
Foss. Rec., 22, 111–118, https://doi.org/10.5194/fr-22-111-2019, 2019
In this paper we describe a new fossil species of the silvanid flat bark beetle from Baltic amber. The new beetle species from European Eocene belongs to the genus living only in the New World now. Possible, the studied specimen is an adult beetle entrapped in resin shortly after moulting.
PubDate: 2019-11-07T08:35:28+01:00
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