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[dinosaur] Paleontology preprints



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Reconstructing paleoclimate and paleoecology using fossil leaves

    Daniel J. Peppe

Last edited: 2017-08-18 (UTC)
Earth and Life Sciences Paleobotany Paleoclimatology Paleoecology

Plants are strongly influenced by their surrounding environment, which
makes them reliable indicators of climate and ecology. The relationship
between climate, ecology, plant traits and the geographic distribution
of plants based on their climatic tolerances have been used to develop
plant-based pro ...
PaleorXiv
The Indication of Mid Miocene Climatic Optimum (MMCO) from Cibulakan
Formation, Bogor Basin, Indonesia

    Dasapta Erwin Irawan

Last edited: 2017-08-18 (UTC)
Earth and Life Sciences Paleoclimatology

Nannoplankton analyses have been proven to identify rapid climate shifts
in sedimentary records. Here, we took 58 samples from Early Miocene to
Late Miocene sediments of Cibulakan Formation (Bogor Basin, Indonesia),
to evaluate climatic benchmarks for Middle Miocene Climate Optimum in
the tropical r ...
PaleorXiv
Depositional environment of the Lower Cretaceous (Upper Albian) Winton
Formation at Isisford, Central-West Queensland, Australia, inferred from
sandstone concretions

    Caitlin Syme

Last edited: 2017-08-18 (UTC)
Earth and Life Sciences Paleoecology Paleontology

Numerous vertebrate and plant fossils have been found in ex-situ
sandstone concretions near Isisford in central-west Queensland since the
mid-1990s. These concretions are found in the Lower Cretaceous portion
(upper Albian, 100.5–102.2 Ma) of the Winton Formation. The lower most
Winton Formation is ...
PaleorXiv
How has our knowledge of dinosaur diversity through geologic time
changed through research history?

    Jonathan TennantAlfio Alessandro Chiarenza

Last edited: 2017-08-18 (UTC)
Earth and Life Sciences Paleobiology Vertebrate Paleobiology

Our knowledge of the number of dinosaur species is dependent on the
publication record, and how this taxonomic archive varies through
historical time. Recent studies have analysed patterns in dinosaur
diversity that are based on variations in the numbers of taxa. These
have employed a range of appro ...
PaleorXiv
Patterns of aquatic decay and disarticulation in juvenile Indo-Pacific
crocodiles (Crocodylus porosus), and implications for the taphonomic
interpretation of fossil crocodyliform material

    Caitlin Syme

Last edited: 2017-08-18 (UTC)
Earth and Life Sciences Paleobiology Vertebrate Paleobiology
Paleontology Vertebrate Paleontology

High levels of skeletal articulation and completeness in fossil
crocodyliforms are commonly attributed to rapid burial, with decreasing
articulation and completeness thought to result from prolonged decay of
soft tissue and the loss of skeletal connectivity during ‘bloat and
float’. These interpreta ...
PaleorXiv
Aysheaia prolata from the Utah Wheeler Formation (Drumian, Cambrian) is
a frontal appendage of the radiodontan Stanleycaris

    Stephen PatesAllison C. DaleyJavier Ortega-Hernández

Last edited: 2017-08-18 (UTC)
Earth and Life Sciences Paleontology Invertebrate Paleontology

Aysheaia prolata, was described as the only lobopodian from the Drumian
(Cambrian) Wheeler Formation in Utah, USA, and the sole representative
of this genus besides the type species Aysheaia pedunculata, from the
Cambrian (Stage 5) Stephen Formation, British Columbia. A redescription
of Aysheaia pro ...
PaleorXiv
New turtle remains from the Late Cretaceous of Monte Alto-SP, Brazil,
including cranial osteology, neuroanatomy and phylogenetic position of a
new taxon

    Gabriel S. FerreiraFabiano Vidoi IoriGuilherme HermansonMax C. Langer

Last edited: 2017-08-18 (UTC)
Earth and Life Sciences Paleobiology Vertebrate Paleobiology Paleontology

A high diversity of land vertebrates is known from the Late Cretaceous
deposits of the Bauru Basin, Brazil, including at least five turtle
taxa, all belonging tothe cladePodocnemidoidae. Some of the richest
fossil sites of this basin are in the area of Monte Alto, which yielded
several squamate, din ...
PaleorXiv
A new genus of Buchonomyiinae (Diptera, Chironomidae) from Late
Cretaceous Burmese amber, with the phylogeny of the subfamily revisited.

    Viktor Baranov

Last edited: 2017-08-18 (UTC)
Earth and Life Sciences Paleontology Invertebrate Paleontology

Among the eleven modern subfamilies of non-biting midges (Diptera:
Chironomidae), Buchonomyiinae are the most primitive and considered to
be the sister group to the rest of the chironomids. The subfamily is
monotypic with a single genus Buchonomyia, including three Recent
species from Europe, South- ...
PaleorXiv