Environmental factors for around 172 million years ago in the future Bredon Hill area
Rock Name
Birdlip Limestone (former name Inferior Oolite)
Lithology (appearance)
Pale coloured oolitic limestone
Period
Middle Jurassic
How old
Around 172 million years
Environment of rock formation
Shallow warm clear seas
Climate
Warm with a wet winter season
Latitude
45′ N of Equator
Oxygen as percentage of atmosphere
20% (21% today)
Carbon Dioxide as parts per million of atmosphere composition
2100ppm (around 415ppm today and rising)
Maximum day time temperatures
29’C
Minimum night time temperature
12’C
Sea temperature
24’C
Weather risk
Occasional torrential rain and high winds
Midday Sun
High in southern sky
UV index
8
Earthquake risk (scale 1 low risk to 9 high risk)
7
Tectonic
Major rifting where Atlantic is starting to open.
Volcano risk
None in area
Top predator
Marine reptiles
Animal Life
Dinosaurs – stegosaurus – flying therapods – sauropods
Plant Life
Lush coniferous forests
Humidity
High
Rainfall
High in wet season
Wind
SE?
Day length
23 hours
Days in year
385