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Fossils of the Yorkshire Coast

Fossils of the Yorkshire Coast. Dr Liam Herringshaw - lgh865@hotmail.com. The F Word. What are fossils? What is palaeontology? Why are fossils important?. What are fossils?. Petrified remains of old, dead organisms (Also trace fossils) Most things don’t get fossilized

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Fossils of the Yorkshire Coast

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  1. Fossils of the Yorkshire Coast Dr Liam Herringshaw - lgh865@hotmail.com

  2. The F Word What are fossils? What is palaeontology? Why are fossils important?

  3. What are fossils? • Petrified remains of old, dead organisms • (Also trace fossils) • Most things don’t get fossilized • Best to live in the sea • Best to have a hard shell

  4. Future coastal fossils?

  5. The fossilization filter

  6. Fossils & Strata Smith, Phillips & Yorkshire

  7. Yorkshire CoastFossils What, Where & Why?

  8. Geology of the Yorkshire Coast Mesozoic – middle life

  9. The Early Jurassic:Redcar – Ravenscar Redcar Mudstone Formation Staithes Sandstone Formation Cleveland Ironstone Formation Whitby Mudstone Formation

  10. “The Lias”

  11. Redcar Mudstone Formation Robin Hood's Bay Redcar Earliest Jurassic unit on Yorkshire Coast • - Divided into 4 members

  12. Redcar Rocks

  13. Robin Hood's Bay

  14. Common fossils Gryphaeaarcuata, an Early Jurassic 'oyster'

  15. Trace fossils Rhizocorallium, Boggle Hole

  16. Staithes Sandstones & Ironstones

  17. Staithes to Old Nab

  18. Staithes Sandstone Fm Sandstones with cross-stratification Burrowed siltstones

  19. Cleveland Ironstone Formation Transition from SSF to CIF, Penny Nab

  20. Fossils Belemnites, bivalves, woody debris

  21. Ironstone burrows Rhizocorallium, Old Nab

  22. Jet-powered Whitby Early Jurassic Whitby Mudstone Formation Grey Shales Black Shales Alum Shales

  23. Whitby–Saltwick Nab Bituminous → Alum Shales

  24. Fossil fuel! The Jet Rock – very high organic content

  25. Jet: a puzzle

  26. Ammonites Hildoceras Dactylioceras Harpoceras

  27. Bivalves Dacryomya ovum Alum shale 'nut shell' Pseudomytiloides dubius The dubious, false mussel-like clam!

  28. Marine mudstone monsters! Temnodontosaurus crassimanus

  29. Middle Jurassic

  30. Middle Jurassic: shallow and sandy

  31. World Famous Fossil Plants

  32. Soils, coals, roots Yons Nab, Cayton Bay

  33. Dinoturbation Cloughton Wyke

  34. Shallow marine burrows Diplocraterion, Cloughton Wyke

  35. There are Jurassic burrows in the walls of the museum! Traces of Yorkshire

  36. Upper Jurassic

  37. Filey Brigg Birdsall Calcareous Grit: wedge of tough, limy sandstone

  38. Filey Briggstratigraphy Coarse-grained Limestones-sandstones Oolites Shelly fossils Trace fossils

  39. Big Brigg burrows!

  40. Jurassic-Cretaceous boundary somewhere in Filey Bay

  41. Cretaceous: Chalk on the board

  42. Speeton Clay fossils Ammonites, crustaceans, gastropods

  43. Chalk Group Very fine-grained shelly limestones

  44. Belemnites in red chalk Neohibolites

  45. Hard northern chalk!

  46. Flamborough Sponge Beds 10m-thick sponge-rich interval (near Sewerby)

  47. Chalk fossils Inoceramid bivalves D, E, from Flamborough

  48. Chalk fossils Echinoids (sea urchins) Dane's Dyke-Sewerby

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