Grzegorz Niedzwiedzki
Researcher at Department of Organismal Biology; Evolution and Development
- E-mail:
- grzegorz.niedzwiedzki@ebc.uu.se
- Visiting address:
- Evolutionsbiologiskt Centrum EBC Norbyv. 18A
- Postal address:
- Norbyv. 18A
752 36 UPPSALA
- Academic merits:
- PhD
- CV:
- Download CV
Keywords
- palaeobiology
- palaeoecology
- vertebrate palaeontology
- vertebrate trace fossils
- early dinosaurs
- early tetrapods
Biography
Education:
2013 Doctoral thesis defense "The large predatory archosaur Smok wawelski from the latest Triassic of Poland" (in English)
opponents: Prof. Michael J. Benton, University of Bristol, UK; Prof. Andrzej Elżanowski, Polish Academy of Sciences, Poland
2007 – 2012 PhD position at Department of Paleobiology and Evolution, University of Warsaw, supervisor: Prof. Jerzy Dzik
2007 Masters of science in biology, University of Warsaw
project “Palaeoecological analysis of the Early Jurassic ecosystem of Sołtyków, Holy Cross Mountains, Poland” (in Polish), Department of Paleobiology and Evolution, University of Warsaw, supervisor: Prof. Stefan Radzikowski
2004 Bachelor degree in biology, University of Warsaw
project “Protozoa in the fossil record” (in Polish), Department of Zoology, University of Warsaw, supervisor: Prof. Stefan Radzikowski
Grants and Awards:
2008 Team research grant of the National Geographic Poland magazine
2008 Award of the Foundation for Polish Science Program Start 2008
2008 „Traveler 2008” - Award of the National Geographic Poland magazine
2009 Award of the Foundation for Polish Science Program Start 2009
2009 Team Award of the President of the Polish Academy of Sciences for scientific activity
2010 Special Award of the Prime Minister of the Polish Government as an important scientific achievement
2010 Award of the Polish Association of Science Journalists – „Odkrywcy roku 2010”
2010 „Fenomen” – Award of the „Przekrój” magazine
2011 „Traveler 2010” - Award of the National Geographic Poland magazine
Expeditions and major fieldworks:
2001 Seychelles, Mahe Island and St. Anne Island, academic training at field camp of the Royal Geographical Society, London.
2006 Karatau Mountains, Kazakhstan; Jurassic outcrops (under the direction of Prof. dr. hab. Jerzy Dzik, Polish Academy of Sciences).
2008 Tunisia, Saharan Platform; Triassic and Jurassic outcrops (under the direction of Prof. Mohamed Soussi, University of Tunis).
2008 Russia, Permian-Triassic outcrops around Vyazniki (in collaboration with Dr. Tomasz Sulej, Polish Academy of Sciences).
2009 Lithuania; Triassic outcrops (in collaboration with American Museum of Natural History, New York).
2010 Lithuania; Triassic outcrops (in collaboration with American Museum of Natural History, New York).
2010 Ukraine; late Silurian and early Devonian of Podolia (under the direction of Prof. dr. hab. Huberta Szaniawskiego, Polish Academy of Sciences).
2010 Russia, Permian-Triassic outcrops around Vyazniki (in collaboration with Dr. Tomasz Sulej, Polish Academy of Sciences).
2010 Crete, Greece; Miocene outcrops around Kissamos (in collaboration with Dr. Gerard Gierliński, Polish Geological Institute).
2011 Crete, Greece; Miocene outcrops around Kissamos (in collaboration with Dr. Gerard Gierliński, Polish Geological Institute).
2012 Crete, Greece; Miocene outcrops around Kissamos.
2013 Tunisia, Saharan Platform; Triassic and Jurassic outcrops (under the direction of Prof. Mohamed Soussi, University of Tunis).
2013 Russia, Permian-Triassic outcrops around Vyazniki (in collaboration with Dr. Tomasz Sulej, Polish Academy of Sciences).
2014 East Greenland, Late Triassic and Early Jurassic outcrops (under the direction of Dr. Tomasz Sulej, Polish Academy of Sciences).
2015 East Greenland; Upper Devonian and Permo-Triassic exposures (under the direction of Dr. Benjamin P. Kear, Uppsala University).
2016 East Greenland, Upper Devonian, Permo-Triassic exposures (under the direction of Dr. Benjamin P. Kear, Uppsala University).
Research
I obtained PhD in biology in 2013. The field of my PhD research was analysis of the archosaur fossils from the Late Triassic of Poland. My recent studies are based on Permian, Triassic and Jurassic fossils collected during fieldworks in Poland (2001-2017), Russia (2008, 2010, 2013), Tunisia (2008, 2013), Greenland (2014, 2015, 2016), Sweden (2015, 2016, 2017) and also analysis of other specimens housed in museums and collections in Poland, Russia and Sweden. Recently, I decided to apply my skills to novel research questions, and I find challenging big questions, like the palaeoichnological record of early tetrapods and evolution of early dinosaurs, especially inspiring.

Publications
Selection of publications
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Part of Geological Quarterly, p. 840-856, 2016
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Part of Lethaia, p. 455-477, 2016
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Part of Historical Biology, p. 550-570, 2016
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 113-124, 2016
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Part of Scientific Reports, 2016
- DOI for Boreal earliest Triassic biotas elucidate globally depauperate hard substrate communities after the end-Permian mass extinction
- Download full text (pdf) of Boreal earliest Triassic biotas elucidate globally depauperate hard substrate communities after the end-Permian mass extinction
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Vertebrate coprolites (fossil faeces): An underexplored Konservat-Lagerstatte
Part of Earth-Science Reviews, p. 44-57, 2016
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 5-15, 2016
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 77-90, 2016
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Carboniferous tetrapod footprints from the Lublin Basin, SE Poland
Part of GFF, p. 57-65, 2015
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 22-40, 2015
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The first find of Permian ceratodontids (Dipnoi, Osteichthyes) in Russia
Part of Paleontological journal, p. 1112-1124, 2015
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Coprolites of Late Triassic carnivorous vertebrates from Poland: An integrative approach
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 21-46, 2015
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The first placoderm fish from the Lower Devonian of Poland
Part of Journal of Vertebrate Paleontology, 2015
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 173-192, 2015
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Part of Geological Society of America, Special Paper, p. 263-286, 2014
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Part of Polish Polar Research, p. 541-552, 2014
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Part of Bulletin of Geosciences, p. 593-606, 2014
-
Part of Palaeontology, p. 1121-1142, 2014
-
Mammal-like tooth from the Upper Triassic of Poland
Part of Acta Palaeontologica Polonica, p. 815-820, 2014
-
Putative dicynodont coprolites from the Upper Triassic of Poland
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 1-17, 2014
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Part of Palaeoworld, p. 304-313, 2014
-
Part of Geological Quarterly, p. 795-806, 2014
-
Part of Geological Society Special Publication, p. 319-351, 2013
-
A new large capitosaurid temnospondyl amphibian from the Early Triassic of Poland
Part of Acta Palaeontologica Polonica, p. 65-75, 2013
- DOI for A new large capitosaurid temnospondyl amphibian from the Early Triassic of Poland
- Download full text (pdf) of A new large capitosaurid temnospondyl amphibian from the Early Triassic of Poland
-
Insects and crustaceans from the latest Early-early Middle Triassic of Poland
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 136-144, 2013
-
Part of Ichnos, p. 24-30, 2013
-
Part of Geological Magazine, p. 110-122, 2013
-
A Supposed Eupelycosaur Body Impression from the Early Permian of the Intra-Sudetic Basin, Poland
Part of Ichnos, p. 150-155, 2012
-
A large predatory archosaur from the Late Triassic of Poland
Part of Acta Palaeontologica Polonica, p. 267-276, 2012
- DOI for A large predatory archosaur from the Late Triassic of Poland
- Download full text (pdf) of A large predatory archosaur from the Late Triassic of Poland
Recent publications
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Part of Annals of Botany, p. 1797-1816, 2026
- DOI for Earliest Jurassic plant assemblages from Sweden reveal a low-diversity ginkgoalean and cheirolepid flora dominating the post-extinction landscape
- Download full text (pdf) of Earliest Jurassic plant assemblages from Sweden reveal a low-diversity ginkgoalean and cheirolepid flora dominating the post-extinction landscape
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Part of PeerJ, 2026
- DOI for A new Triassic austrolimulid from Poland presents insight into xiphosurid evolution and palaeobiogeography at the dawn of the Mesozoic
- Download full text (pdf) of A new Triassic austrolimulid from Poland presents insight into xiphosurid evolution and palaeobiogeography at the dawn of the Mesozoic
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, 2026
- DOI for High-latitude dipnoan aestivation burrows suggest seasonal aridity for early dinosaur ecosystems in the Late Triassic of East Greenland
- Download full text (pdf) of High-latitude dipnoan aestivation burrows suggest seasonal aridity for early dinosaur ecosystems in the Late Triassic of East Greenland
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An ornithischian-theropod ichnoassemblage from the Norian-Rhaetian transition of Poland
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, 2025
- DOI for An ornithischian-theropod ichnoassemblage from the Norian-Rhaetian transition of Poland
- Download full text (pdf) of An ornithischian-theropod ichnoassemblage from the Norian-Rhaetian transition of Poland
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Earliest amniote tracks recalibrate the timeline of tetrapod evolution
Part of Nature, p. 1193-1200, 2025
- DOI for Earliest amniote tracks recalibrate the timeline of tetrapod evolution
- Download full text (pdf) of Earliest amniote tracks recalibrate the timeline of tetrapod evolution
All publications
Articles in journal
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Part of Annals of Botany, p. 1797-1816, 2026
- DOI for Earliest Jurassic plant assemblages from Sweden reveal a low-diversity ginkgoalean and cheirolepid flora dominating the post-extinction landscape
- Download full text (pdf) of Earliest Jurassic plant assemblages from Sweden reveal a low-diversity ginkgoalean and cheirolepid flora dominating the post-extinction landscape
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Part of PeerJ, 2026
- DOI for A new Triassic austrolimulid from Poland presents insight into xiphosurid evolution and palaeobiogeography at the dawn of the Mesozoic
- Download full text (pdf) of A new Triassic austrolimulid from Poland presents insight into xiphosurid evolution and palaeobiogeography at the dawn of the Mesozoic
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, 2026
- DOI for High-latitude dipnoan aestivation burrows suggest seasonal aridity for early dinosaur ecosystems in the Late Triassic of East Greenland
- Download full text (pdf) of High-latitude dipnoan aestivation burrows suggest seasonal aridity for early dinosaur ecosystems in the Late Triassic of East Greenland
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An ornithischian-theropod ichnoassemblage from the Norian-Rhaetian transition of Poland
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, 2025
- DOI for An ornithischian-theropod ichnoassemblage from the Norian-Rhaetian transition of Poland
- Download full text (pdf) of An ornithischian-theropod ichnoassemblage from the Norian-Rhaetian transition of Poland
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Earliest amniote tracks recalibrate the timeline of tetrapod evolution
Part of Nature, p. 1193-1200, 2025
- DOI for Earliest amniote tracks recalibrate the timeline of tetrapod evolution
- Download full text (pdf) of Earliest amniote tracks recalibrate the timeline of tetrapod evolution
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Digestive contents and food webs record the advent of dinosaur supremacy
Part of Nature, p. 397-403, 2024
- DOI for Digestive contents and food webs record the advent of dinosaur supremacy
- Download full text (pdf) of Digestive contents and food webs record the advent of dinosaur supremacy
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Part of PLOS ONE, 2023
- DOI for The Bothriolepis (Placodermi, Antiarcha) material from the Valentia Slate Formation of the Iveragh Peninsula (middle Givetian, Ireland): Morphology, evolutionary and systematic considerations, phylogenetic and palaeogeographic implications
- Download full text 1 (pdf) of The Bothriolepis (Placodermi, Antiarcha) material from the Valentia Slate Formation of the Iveragh Peninsula (middle Givetian, Ireland): Morphology, evolutionary and systematic considerations, phylogenetic and palaeogeographic implications
- Download full text 2 (pdf) of The Bothriolepis (Placodermi, Antiarcha) material from the Valentia Slate Formation of the Iveragh Peninsula (middle Givetian, Ireland): Morphology, evolutionary and systematic considerations, phylogenetic and palaeogeographic implications
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Early Jurassic coprolites: insights into palaeobotany and the feeding behaviour of dinosaurs
Part of Papers in Palaeontology, 2022
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Part of Geological Quarterly, 2022
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, 2022
- DOI for Coprolite diversity reveals a cryptic ecosystem in an early Tournaisian lake in East Greenland: Implications for ecosystem recovery after the end-Devonian extinctio
- Download full text (pdf) of Coprolite diversity reveals a cryptic ecosystem in an early Tournaisian lake in East Greenland: Implications for ecosystem recovery after the end-Devonian extinctio
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Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
Part of Current Biology, p. 3374-+, 2021
- DOI for Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
- Download full text (pdf) of Exceptionally preserved beetles in a Triassic coprolite of putative dinosauriform origin
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New light shed on the early evolution of limb-bone growth plate and bone marrow
Part of eLIFE, 2021
- DOI for New light shed on the early evolution of limb-bone growth plate and bone marrow
- Download full text (pdf) of New light shed on the early evolution of limb-bone growth plate and bone marrow
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Age constraints for the Trachilos footprints from Crete
Part of Scientific Reports, 2021
- DOI for Age constraints for the Trachilos footprints from Crete
- Download full text (pdf) of Age constraints for the Trachilos footprints from Crete
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Part of Acta Palaeontologica Polonica, p. 71-79, 2020
- DOI for Feeding convergence among ray-finned fishes: Teeth of the herbivorous actinopterygians from the latest Permian of East European Platform, Russia
- Download full text (pdf) of Feeding convergence among ray-finned fishes: Teeth of the herbivorous actinopterygians from the latest Permian of East European Platform, Russia
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Part of Acta Palaeontologica Polonica, p. 561-574, 2020
- DOI for Dipnoan from the Upper Triassic of East Greenland and remarks about palaeobiogeography of Ptychoceratodus
- Download full text (pdf) of Dipnoan from the Upper Triassic of East Greenland and remarks about palaeobiogeography of Ptychoceratodus
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The earliest-known mammaliaform fossil from Greenland sheds light on origin of mammals
Part of Proceedings of the National Academy of Sciences of the United States of America, p. 26861-26867, 2020
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A new early Late Triassic non-mammaliaform eucynodont from Poland
Part of Historical Biology, p. 80-92, 2020
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, 2020
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First evidence of a tetrapod footprint from the Triassic of northern Victoria Land, Antarctica
Part of Polar Research, 2019
- DOI for First evidence of a tetrapod footprint from the Triassic of northern Victoria Land, Antarctica
- Download full text (pdf) of First evidence of a tetrapod footprint from the Triassic of northern Victoria Land, Antarctica
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Part of Journal of Paleontology, p. 72-97, 2019
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Beetle-bearing coprolites possibly reveal the diet of a Late Triassic dinosauriform
Part of Royal Society Open Science, 2019
- DOI for Beetle-bearing coprolites possibly reveal the diet of a Late Triassic dinosauriform
- Download full text (pdf) of Beetle-bearing coprolites possibly reveal the diet of a Late Triassic dinosauriform
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Filter feeding in Late Jurassic pterosaurs supported by coprolite contents
Part of PeerJ, 2019
- DOI for Filter feeding in Late Jurassic pterosaurs supported by coprolite contents
- Download full text (pdf) of Filter feeding in Late Jurassic pterosaurs supported by coprolite contents
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Tyrannosaurid-like osteophagy by a Triassic archosaur
Part of Scientific Reports, 2019
- DOI for Tyrannosaurid-like osteophagy by a Triassic archosaur
- Download full text (pdf) of Tyrannosaurid-like osteophagy by a Triassic archosaur
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 32-48, 2019
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Part of Historical Biology, p. 1065-1081, 2019
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An elephant-sized Late Triassic synapsid with erect limbs
Part of Science, p. 78-80, 2019
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Part of Global and Planetary Change, p. 87-98, 2018
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 332-345, 2018
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A new occurrence of the Late Triassic archosaur Smok in southern Poland
Part of Acta Palaeontologica Polonica, p. 703-712, 2018
- DOI for A new occurrence of the Late Triassic archosaur Smok in southern Poland
- Download full text (pdf) of A new occurrence of the Late Triassic archosaur Smok in southern Poland
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Part of Geological Magazine, p. 1523-1541, 2018
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Part of Review of Palaeobotany and Palynology, p. 61-79, 2018
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Non-marine palaeoenvironment associated to the earliest tetrapod tracks
Part of Scientific Reports, 2018
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Part of Journal of African Earth Sciences, p. 31-44, 2017
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Upper Triassic freshwater oncoids from Silesia (southern Poland) and their microfossil biota
Part of Neues Jahrbuch für Geologie und Palaontologie - Abhandlungen, p. 43-56, 2017
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Synchrotron phase-contrast microtomography of coprolites generates novel palaeobiological data
Part of Scientific Reports, 2017
- DOI for Synchrotron phase-contrast microtomography of coprolites generates novel palaeobiological data
- Download full text (pdf) of Synchrotron phase-contrast microtomography of coprolites generates novel palaeobiological data
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Possible hominin footprints from the late Miocene (c. 5.7 Ma) of Crete?
Part of Proceedings of the Geologists' Association, p. 697-710, 2017
- DOI for Possible hominin footprints from the late Miocene (c. 5.7 Ma) of Crete?
- Download full text (pdf) of Possible hominin footprints from the late Miocene (c. 5.7 Ma) of Crete?
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The first direct evidence of a Late Devonian coelacanth fish feeding on conodont animals
Part of The Science of Nature, 2017
- DOI for The first direct evidence of a Late Devonian coelacanth fish feeding on conodont animals
- Download full text (pdf) of The first direct evidence of a Late Devonian coelacanth fish feeding on conodont animals
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Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 70-82, 2017
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Part of Journal of Paleontology, p. 960-967, 2017
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The earliest bird-line archosaurs and the assembly of the dinosaur body plan
Part of Nature, p. 484-+, 2017
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Part of Geological Quarterly, p. 840-856, 2016
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Part of Lethaia, p. 455-477, 2016
-
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 113-124, 2016
-
Part of Scientific Reports, 2016
- DOI for Boreal earliest Triassic biotas elucidate globally depauperate hard substrate communities after the end-Permian mass extinction
- Download full text (pdf) of Boreal earliest Triassic biotas elucidate globally depauperate hard substrate communities after the end-Permian mass extinction
-
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 5-15, 2016
-
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 77-90, 2016
-
Carboniferous tetrapod footprints from the Lublin Basin, SE Poland
Part of GFF, p. 57-65, 2015
-
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 22-40, 2015
-
A plant-root system in the Lower Devonian of the Holy Cross Mountains, Poland
Part of Estonian journal of earth sciences, p. 95-98, 2015
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The first find of Permian ceratodontids (Dipnoi, Osteichthyes) in Russia
Part of Paleontological journal, p. 1112-1124, 2015
-
Coprolites of Late Triassic carnivorous vertebrates from Poland: An integrative approach
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 21-46, 2015
-
The first placoderm fish from the Lower Devonian of Poland
Part of Journal of Vertebrate Paleontology, 2015
-
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 173-192, 2015
-
Part of Geological Society of America, Special Paper, p. 263-286, 2014
-
Part of Polish Polar Research, p. 541-552, 2014
-
Part of Bulletin of Geosciences, p. 593-606, 2014
-
Part of Palaeontology, p. 1121-1142, 2014
-
Mammal-like tooth from the Upper Triassic of Poland
Part of Acta Palaeontologica Polonica, p. 815-820, 2014
-
Putative dicynodont coprolites from the Upper Triassic of Poland
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 1-17, 2014
-
Part of Palaeoworld, p. 304-313, 2014
-
Part of Geological Quarterly, p. 795-806, 2014
-
Part of Geological Society Special Publication, p. 319-351, 2013
-
A new large capitosaurid temnospondyl amphibian from the Early Triassic of Poland
Part of Acta Palaeontologica Polonica, p. 65-75, 2013
- DOI for A new large capitosaurid temnospondyl amphibian from the Early Triassic of Poland
- Download full text (pdf) of A new large capitosaurid temnospondyl amphibian from the Early Triassic of Poland
-
Insects and crustaceans from the latest Early-early Middle Triassic of Poland
Part of Palaeogeography, Palaeoclimatology, Palaeoecology, p. 136-144, 2013
-
Part of Ichnos, p. 24-30, 2013
-
Part of Geological Magazine, p. 110-122, 2013
-
Part of Palaios, p. 867-877, 2013
-
A Supposed Eupelycosaur Body Impression from the Early Permian of the Intra-Sudetic Basin, Poland
Part of Ichnos, p. 150-155, 2012
-
A large predatory archosaur from the Late Triassic of Poland
Part of Acta Palaeontologica Polonica, p. 267-276, 2012
- DOI for A large predatory archosaur from the Late Triassic of Poland
- Download full text (pdf) of A large predatory archosaur from the Late Triassic of Poland
Articles, review/survey
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A re-evaluation of the historical "dinosaur' remains from the Middle-Upper Triassic of Poland
Part of Historical Biology, p. 442-472, 2017
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Part of MARINE AND PETROLEUM GEOLOGY, p. 222-256, 2017
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Part of Historical Biology, p. 550-570, 2016
-
Vertebrate coprolites (fossil faeces): An underexplored Konservat-Lagerstatte
Part of Earth-Science Reviews, p. 44-57, 2016
Conference papers
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Part of 77th Annual Meeting of the Society of Vertebrate Paleontology, Abstract book, p. 181, 2017