Diego Balseiro
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View article: Extinction drives both expansion and contraction of morphological disparity in trilobites
Extinction drives both expansion and contraction of morphological disparity in trilobites Open
Among the many contributions of palaeontology to evolutionary biology, understanding the evolution of morphological diversity is one of the most relevant. Disparity dynamics throughout the history of a clade have been widely explored in th…
View article: Rise and fall of the phacopids: the morphological history of a successful trilobite family
Rise and fall of the phacopids: the morphological history of a successful trilobite family Open
Phacopidae were a successful family of the Silurian–Devonian period. Although their diversity trends are well identified, their shape evolution is unknown; their morphology often considered to be conservative. We have quantified these morp…
View article: Relative oversampling of carbonate rocks in the North American marine fossil record
Relative oversampling of carbonate rocks in the North American marine fossil record Open
Paleontologists have long stressed the need to know how sampling the fossil record might influence our knowledge of the evolution of life. Here, we combine fossil occurrences of North American marine invertebrates from the Paleobiology Dat…
View article: A novel distance that reduces information loss in continuous characters with few observations
A novel distance that reduces information loss in continuous characters with few observations Open
The calculation of pairwise distances is a fundamental step in many statistical analyses in biology and paleontology.The most commonly used distances work with a single observation per object and character, but there are scenarios where mu…
View article: <i>Porongodendron minitensis</i> gen. nov. sp. nov. a new lycopsid from the Mississippian of Argentina with adaptations to tundra-like conditions
<i>Porongodendron minitensis</i> gen. nov. sp. nov. a new lycopsid from the Mississippian of Argentina with adaptations to tundra-like conditions Open
peer reviewed
View article: Glaciomarine sequence stratigraphy in the Mississippian Río Blanco Basin, Argentina, southwestern Gondwana. Basin analysis and palaeoclimatic implications for the Late Paleozoic Ice Age during the Tournaisian.
Glaciomarine sequence stratigraphy in the Mississippian Río Blanco Basin, Argentina, southwestern Gondwana. Basin analysis and palaeoclimatic implications for the Late Paleozoic Ice Age during the Tournaisian. Open
The Late Paleozoic Ice Age (LPIA) has been well recorded in the uppermost Mississippian–Pennsylvanian of Gondwana. Nevertheless, little is known about the temporal and geographic dynamics, particularly during the early Mississippian. We re…
View article: Supplementary Material 2. Glaciomarine sequence stratigraphy in the Mississippian Río Blanco Basin, Argentina, southwestern Gondwana. Basin analysis and palaeoclimatic implications for the Late Paleozoic Ice Age during the Tournaisian.
Supplementary Material 2. Glaciomarine sequence stratigraphy in the Mississippian Río Blanco Basin, Argentina, southwestern Gondwana. Basin analysis and palaeoclimatic implications for the Late Paleozoic Ice Age during the Tournaisian. Open
Supplementary Material 2: Paleocurrents and conglomerate compositions of Cerro Tres Cóndores in different outcrops of the region (see Fig. 1 for location).
View article: Supplementary Material 3. Glaciomarine sequence stratigraphy in the Mississippian Río Blanco Basin, Argentina, southwestern Gondwana. Basin analysis and palaeoclimatic implications for the Late Paleozoic Ice Age during the Tournaisian.
Supplementary Material 3. Glaciomarine sequence stratigraphy in the Mississippian Río Blanco Basin, Argentina, southwestern Gondwana. Basin analysis and palaeoclimatic implications for the Late Paleozoic Ice Age during the Tournaisian. Open
Supplementary Material 3: U/Pb detrital zircon data at the top of the Cerro Tres Cóndores Formation (see Fig. 3 and Supplementary Materials 1 for stratigraphic location).
View article: Carbonate collapse and the late Paleozoic ice age marine biodiversity crisis
Carbonate collapse and the late Paleozoic ice age marine biodiversity crisis Open
The late Paleozoic ice age (LPIA) was characterized by persistently low diversity of marine invertebrates following a second-order mass extinction. Here, we used a data set of North American (paleotropical) fossil occurrences of brachiopod…
View article: BRACHIOPOD ASSEMBLAGES OF THE EURYDESMA FAUNA IN GLACIAL- DEGLACIAL SEQUENCES FROM ARGENTINA AND AUSTRALIA
BRACHIOPOD ASSEMBLAGES OF THE EURYDESMA FAUNA IN GLACIAL- DEGLACIAL SEQUENCES FROM ARGENTINA AND AUSTRALIA Open
The Eurydesma Fauna characterizes the Late Pennsylvanian-Permian glacial-postglacial sediments recorded in several Gondwanan basins during the Late Paleozoic Ice Age (LPIA). Brachiopods, as one the most significant components of this fauna…
View article: UNVEILING THE CONSEQUENCES OF ENVIRONMENTAL VARIATION AND SPECIES ABUNDANCES ON BEACH TAPHOFACIES IN BAHAMAS: THE ROLE OF CEMENTATION AND EXHUMATION
UNVEILING THE CONSEQUENCES OF ENVIRONMENTAL VARIATION AND SPECIES ABUNDANCES ON BEACH TAPHOFACIES IN BAHAMAS: THE ROLE OF CEMENTATION AND EXHUMATION Open
Although environmental variability generates differences in the preservation of shell assemblages, intrinsic variations in shell characteristics can confound the effects of environment on preservation. However, several studies proposed tha…
View article: Tectonic controls on deposition in the late Cambrian - Early Ordovician Central Andean Basin (Cordillera Oriental; northwest Argentina) – the first step towards an integrative reconstruction
Tectonic controls on deposition in the late Cambrian - Early Ordovician Central Andean Basin (Cordillera Oriental; northwest Argentina) – the first step towards an integrative reconstruction Open
This study focuses on upper Cambrian – Lower Ordovician strata containing the lowermost fossil-bearing levels of the basin (Santa Rosita Formation and Guayoc Chico Group). Bounded by two major regional unconformities, this stratigraphic in…
View article: Tempo and mode in the replacement of trilobite evolutionary faunas from the Cordillera Oriental basin (Northwestern Argentina)
Tempo and mode in the replacement of trilobite evolutionary faunas from the Cordillera Oriental basin (Northwestern Argentina) Open
Major ecological transitions among evolutionary faunas are matters of continual debate. Our study analyses the timing and mode of replacement of Ibex I and II Trilobite Evolutionary Faunas (TEF) in Lower Ordovician successions of northwest…
View article: Factors shaping community assemblages and species co‐occurrence of different trophic levels
Factors shaping community assemblages and species co‐occurrence of different trophic levels Open
Species assemblages are the results of various processes, including dispersion and habitat filtering. Disentangling the effects of these different processes is challenging for statistical analysis, especially when biotic interactions shoul…
View article: The phacopid trilobite<i>Echidnops taphomimus</i>n. sp. from the Lower Devonian of Argentina: insights into infaunal molting, eye architecture and geographic distribution
The phacopid trilobite<i>Echidnops taphomimus</i>n. sp. from the Lower Devonian of Argentina: insights into infaunal molting, eye architecture and geographic distribution Open
Some Silurian-Devonian Argentinian trilobites characterized by infaunal behavior during molting are considered. After a taxonomic reappraisal, a species previously referred to a lineage of the phacopid Paciphacops is proposed as Echidnops …
View article: Environmental preferences of brachiopods and bivalves across major climatic changes during the Late Palaeozoic ice age (Pennsylvanian, western Argentina)
Environmental preferences of brachiopods and bivalves across major climatic changes during the Late Palaeozoic ice age (Pennsylvanian, western Argentina) Open
During the late Palaeozoic ice age ( LPIA ), ice‐proximal marine regional communities record contrasting responses to climate change compared to ice‐distal communities. However, there is still much to be understood in distal regions in ord…
View article: Compositional turnover and ecological changes related to the waxing and waning of glaciers during the late Paleozoic ice age in ice-proximal regions (Pennsylvanian, western Argentina)
Compositional turnover and ecological changes related to the waxing and waning of glaciers during the late Paleozoic ice age in ice-proximal regions (Pennsylvanian, western Argentina) Open
The late Paleozoic ice age (LPIA) had a profound effect on the biota. Despite much research having been focused on paleotropical regions or global-scale analyses, regional ecological changes have seldom been studied in ice-proximal basins.…
View article: Diversification of<i>Asaphellus</i>Callaway, 1877 (Asaphidae: Trilobita) during the Tremadocian in South West Gondwana (Cordillera Oriental, Argentina)
Diversification of<i>Asaphellus</i>Callaway, 1877 (Asaphidae: Trilobita) during the Tremadocian in South West Gondwana (Cordillera Oriental, Argentina) Open
Asaphellus Callaway, 1877 is the earliest widespread genus of the family Asaphidae Burmeister, 1843, and although its systematics bears several problematic issues, an input to overcome these difficulties has been attempted. Our main focus …