An array of sixth abdominal tergite types of paguroid anomurans (Crustacea) from the mid-Cretaceous of Navarra, northern Spain

2013 ◽  
Vol 92 (2-3) ◽  
pp. 109-117 ◽  
Author(s):  
R.H.B. Fraaije ◽  
P. Artal ◽  
B.W.M. van Bakel ◽  
J.W.M. Jagt ◽  
A.A. Klompmaker
Keyword(s):  
Early Cretaceous ◽  
Abdominal Tergite ◽  
Upper Jurassic ◽  
Hermit Crabs ◽  
New Genera ◽  
Northern Spain ◽  
Southern Germany ◽  
Southern Poland

AbstractIn recent years, a range of operculate sixth abdominal tergite types of pylochelid and parapylochelid hermit crabs (Anomura, Paguroidea) have been recorded from Upper Jurassic (Oxfordian and Kimmeridgian) strata in southern Poland and southern Germany. Here we add two new genera (Parapylochelitergites, Paguritergites) and four new late Early Cretaceous species (Parapylochelitergites pustulosus, Pylochelitergites alatus, Pylochelitergites rugosus and Paguritergites yvonnecooleae) from Navarra, northern Spain. In the reefal limestones at Koskobilo quarry near Alsasua, of late Albian age, the number of sixth abdominal paguroid tergite taxa approximates that of paguroid carapace types. Thus, linking fossil paguroid carapaces to tergites can now be attempted. Assemblages of symmetrical hermit crabs (parapylochelids and pylochelids) in reefal settings appear to have changed drastically from the late Albian onwards, with asymmetrical forms (Diogenidae, Paguridae) becoming predominant.

The first record of the genus Eurasenia (Ammonitina) from the Upper Jurassic of Asturias (Northern Spain)

Geobios ◽  
1988 ◽  
Vol 21 (6) ◽  
pp. 741-748 ◽  
Author(s):  
Federico Oloriz ◽  
Marta Valenzuela ◽  
José Carlos Garcia-Ramos ◽  
César Suarez de Centi
Keyword(s):  
First Record ◽  
Upper Jurassic ◽  
Northern Spain

scholarly journals On a remarkable new species of <i>Tharsis</i>, a Late Jurassic teleostean fish from southern Germany: its morphology and phylogenetic relationships

Fossil Record ◽  
2019 ◽  
Vol 22 (1) ◽  
pp. 1-23 ◽  
Author(s):  
Gloria Arratia ◽  
Hans-Peter Schultze ◽  
Helmut Tischlinger
Keyword(s):  
New Species ◽  
Late Jurassic ◽  
Strong Support ◽  
Sister Group ◽  
Common Species ◽  
Upper Jurassic ◽  
Morphological Characters ◽  
Morphological Description ◽  
Sister Group Relationship ◽  
Southern Germany

Abstract. A complete morphological description, as preservation permits, is provided for a new Late Jurassic fish species (Tharsis elleri) together with a revision and comparison of some morphological features of Tharsis dubius, one of the most common species from the Solnhofen limestone, southern Germany. An emended diagnosis of the genus Tharsis – now including two species – is presented. The new species is characterized by a combination of morphological characters, such as the presence of a complete sclerotic ring formed by two bones placed anterior and posterior to the eye, a moderately short lower jaw with quadrate-mandibular articulation below the anterior half of the orbit, caudal vertebrae with neural and haemal arches fused to their respective vertebral centrum, and parapophyses fused to their respective centrum. A phylogenetic analysis based on 198 characters and 43 taxa is performed. Following the phylogenetic hypothesis, the sister-group relationship Ascalaboidae plus more advanced teleosts stands above the node of Leptolepis coryphaenoides. Both nodes have strong support among teleosts. The results confirm the inclusion of Ascalabos, Ebertichthys and Tharsis as members of this extinct family. Tharsis elleri n. sp. (LSID urn:lsid:zoobank.org:act:6434E6F5-2DDD-48CF-A2B1-827495FE46E6, date: 13 December 2018) is so far restricted to one Upper Jurassic German locality – Wegscheid Quarry near Schernfeld, Eichstätt – whereas Tharsis dubius is known not only from Wegscheid Quarry, but also from different localities in the Upper Jurassic of Bavaria, Germany, and Cerin in France.

An Early Cretaceous (Berriasian) fossil-bearing locality from the Rocky Mountains of Alberta, yielding the oldest dinosaur skeletal remains from western Canada

2020 ◽  
Vol 57 (4) ◽  
pp. 542-552 ◽  
Author(s):  
Ramon S. Nagesan ◽  
James A. Campbell ◽  
Jason D. Pardo ◽  
Kendra I. Lennie ◽  
Matthew J. Vavrek ◽  
...  
Keyword(s):  
North America ◽  
Early Cretaceous ◽  
Depositional Environment ◽  
Upper Cretaceous ◽  
Upper Jurassic ◽  
High Energy ◽  
Western Canada ◽  
Western North America ◽  
Terrestrial Vertebrate ◽  
Overlying Strata

Western North America preserves iconic dinosaur faunas from the Upper Jurassic and Upper Cretaceous, but this record is interrupted by an approximately 20 Myr gap with essentially no terrestrial vertebrate fossil localities. This poorly sampled interval is nonetheless important because it is thought to include a possible mass extinction, the origin of orogenic controls on dinosaur spatial distribution, and the origin of important Upper Cretaceous dinosaur taxa. Therefore, dinosaur-bearing rocks from this interval are of particular interest to vertebrate palaeontologists. In this study, we report on one such locality from Highwood Pass, Alberta. This locality has yielded a multitaxic assemblage, with the most diagnostic material identified so far including ankylosaurian osteoderms and a turtle plastron element. The fossil horizon lies within the upper part of the Pocaterra Creek Member of the Cadomin Formation (Blairmore Group). The fossils are assigned as Berriasian (earliest Cretaceous) in age, based on previous palynomorph analyses of the Pocaterra Creek Member and underlying and overlying strata. The fossils lie within numerous cross-bedded sandstone beds separated by pebble lenses. These sediments are indicative of a relatively high-energy depositional environment, and the distribution of these fossils over multiple beds indicates that they accumulated over multiple events, possibly flash floods. The fossils exhibit a range of surface weathering, having intact to heavily weathered cortices. The presence of definitive dinosaur material from near the Jurassic–Cretaceous boundary of Alberta establishes the oldest record of dinosaur body fossils in western Canada and provides a unique opportunity to study the Early Cretaceous dinosaur faunas of western North America.

The first complete skeleton of Solnhofia parsonsi (Cryptodira, Eurysternidae) from the Upper Jurassic of Germany and its taxonomic implications

2000 ◽  
Vol 74 (4) ◽  
pp. 684-700 ◽  
Author(s):  
Walter G. Joyce
Keyword(s):  
Posterior Margin ◽  
Carapace Length ◽  
Upper Jurassic ◽  
Complete Understanding ◽  
Southern Germany ◽  
Postcranial Morphology ◽  
Large Head ◽  
History Of ◽  
Taxonomic Implications ◽  
Tooth Marks

A complete skeleton of Solnhofia parsonsi (Cryptodira, Eurysternidae) from the Kimmeridgian/Tithonian boundary of Schamhaupten, Germany provides the first complete understanding of the postcranial morphology of this genus. The here newly described postcranial characters are important in distinguishing Solnhofia from shell-based genera and thus help in resolving part of the parataxonomic conflict between shell-based and cranium-based turtle genera. This disparity originated during the last 150 years due to the history of fossil finds, preparation, and changing interests of researchers. Synonymies of Solnhofia with such turtle genera as Eurysternum, Idiochelys, Plesiochelys, Thalassemys, and Euryaspis can now be refuted. Similarities with Hydropelta are apparent, but not considered sufficient to support a synonymy. Newly observed or confirmed characters include the relatively large head (40 percent of the carapace length), the pentagonal carapace, the unique arrangement of bones and fontanelles in the pygal region, and the absence of mesoplastra, epiplastra, and an entoplastron.The carcass of the new specimen was embedded in finely laminated limestones and shows little sign of disintegration or scavenging, suggesting hostile bottom conditions with very low water energy during deposition. This taphonomy agrees with recent published models for the origin of the lithographic limestones of southern Germany. Tooth marks along the posterior margin of the carapace are evidence of predation by a broad-nosed crocodilian. This is the first clear example for this type of predatorial interaction from the Upper Jurassic of Germany.

Taphonomy and palaeoecology of high-stress benthic associations from the Upper Jurassic of Asturias, northern Spain

2012 ◽  
Vol 358-360 ◽  
pp. 1-18 ◽  
Author(s):  
Franz Theodor Fürsich ◽  
Winfried Werner ◽  
Graciela Delvene ◽  
José Carlos García-Ramos ◽  
David D. Bermúdez-Rochas ◽  
...  
Keyword(s):  
High Stress ◽  
Upper Jurassic ◽  
Northern Spain

scholarly journals New Australian spore-feeding Thysanoptera (Phlaeothripidae: Idolothripinae)

Zootaxa ◽  
2007 ◽  
Vol 1604 (1) ◽  
pp. 53-68 ◽  
Author(s):  
LAURENCE A. MOUND
Keyword(s):  
New Species ◽  
New Zealand ◽  
Abdominal Tergite ◽  
Antennal Segment ◽  
Single Species ◽  
New Genera ◽  
The Third ◽  
Maxillary Palps

Two new genera and six new species of spore-feeding Thysanoptera are described from Australia, with Australian records of two further species, one from California and one from New Zealand. In the Tribe Pygothripini, subtribe Pygothripina, Ecacleistothrips glorious gen. et sp. n. is a large and highly polymorphic rainforest thrips: the apterous male has a transverse first abdominal tergite, in contrast to the females that have a reduced pelta as is typical of most Phlaeothripidae. Also in this subtribe, Heptathrips cumberi Mound & Walker from New Zealand is recorded widely around the southern coasts of Australia. A key is provided to the six genera of Pygothripini subtribe Allothripina in which the terminal sensorium of the maxillary palps is unusually large. In this group, four wingless species are considered: Minaeithrips aliceae gen. et sp. n. and M. driesseni sp.n. in which the maxillary stylets are wide apart, Allothrips hamideae sp. n. in which the third antennal segment has a basal flange unlike any other member of this widespread genus, and Priesneriella citricauda Hood that was previously known only from California. In the Pygothripini subtribe Macrothripina, Polytrichothrips geoffri sp. n. is described from rainforest; this genus was known previously from a single species in Sarawak. A further rainforest species, Malesiathrips australis sp.n., is described in the Tribe Idolothripini, subtribe Elaphrothripina; this genus was known previously from three species in the Asian and Pacific regions.

Glabrimycetoporus amoenus, a new tachyporine genus and species of Mesozoic Staphylinidae (Coleoptera) from Liaoning, China

Zootaxa ◽  
2009 ◽  
Vol 2225 (1) ◽  
pp. 63-68 ◽  
Author(s):  
YANLI YUE ◽  
YUNYUN ZHAO ◽  
DONG REN
Keyword(s):  
Lower Cretaceous ◽  
New Genus ◽  
Abdominal Tergite ◽  
Upper Jurassic ◽  
Yixian Formation ◽  
Liaoning Province ◽  
New Genus And Species ◽  
Ne China

A new genus and species of well-preserved fossil Staphylinidae is described and illustrated. Glabrimycetoporus amoenus Yue, Zhao & Ren, gen. et sp. nov. is assigned to the tribe Mycetoporini in the subfamily Tachyporinae based on the following characters: head more or less inserted into prothorox, the tenth abdominal tergite broad and oblong; antennal insertions exposed and located anterior to a line drawn between anterior edges of eyes; body strongly tapered to the narrow head and abdominal apex. The specimen was discovered in the Upper Jurassic–Lower Cretaceous Yixian Formation of Beipiao City, Liaoning Province, NE China.

Pedogenetic Calcretes In Early Syn-Rift Alluvial Systems (Upper Jurassic, West Cameros Basin), Northern Spain

2016 ◽  
Vol 86 (3) ◽  
pp. 268-286 ◽  
Author(s):  
Sara Sacristán-Horcajada ◽  
María Eugenia Arribas ◽  
Ramón Mas
Keyword(s):  
Upper Jurassic ◽  
Northern Spain ◽  
Cameros Basin
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