Portland Formation (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Portland Formation" in English language version.

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confex.com

gsa.confex.com

  • Olsen, P.E. (2002). "Stratigraphy and Age of the Early Jurassic Portland Formation of Connecticut and Massachusetts: A Contribution to the Time Scale of the Early Jurassic". Geological Society of America (Abstract). Archived from the original on 2018-11-28. Retrieved 2017-07-07.

doi.org

harvard.edu

ui.adsabs.harvard.edu

paleobiodb.org

  • "PBDB". paleobiodb.org. Retrieved 2024-02-09.
  • "PBDB". paleobiodb.org. Retrieved 2024-02-09.
  • "PBDB". paleobiodb.org. Retrieved 2024-02-09.
  • "PBDB". paleobiodb.org. Retrieved 2024-02-09.

researchgate.net

semanticscholar.org

api.semanticscholar.org

  • Getty, Patrick (2004). "Ornithischian ichnites from Dinosaur Footprint Reservation (Early Jurassic Portland Formation), Holyoke, MA". Journal of Vertebrate Paleontology. 23 (Supp 3): 63A. doi:10.1080/02724634.2003.10010538. S2CID 220410105.

usgs.gov

mrdata.usgs.gov

pubs.er.usgs.gov

web.archive.org

  • Olsen, P.E. (2002). "Stratigraphy and Age of the Early Jurassic Portland Formation of Connecticut and Massachusetts: A Contribution to the Time Scale of the Early Jurassic". Geological Society of America (Abstract). Archived from the original on 2018-11-28. Retrieved 2017-07-07.
  • "A New Specimen of Sand Pseudomorph Dinosaur Bones with Tetrapod Tracks from the Early Jurassic, Hartford Basin, USA | Request PDF". Archived from the original on 2023-11-21. Retrieved 2025-04-03.
  • "(PDF) Early Jurassic pterosaur from Massachusetts". Archived from the original on 2023-11-21. Retrieved 2025-04-03.

wiley.com

onlinelibrary.wiley.com

zenodo.org