Responsible Birding Diary, Monday 21.9.20

Today’s Ferry Meadows CP, ‘vis mig’ session brought an indication of things to come with two flocks of Sky Larks, passing over, numbering 10 and 8 individuals. Other than the usual trickle of Meadow Pipits in ones and twos, though, it was a quiet sessi...


Today’s Ferry Meadows CP, ‘vis mig’ session brought an indication of things to come with two flocks of Sky Larks, passing over, numbering 10 and 8 individuals. Other than the usual trickle of Meadow Pipits in ones and twos, though, it was a quiet session. So, after breakfast I went for a bit more fossil hunting in southern Peterborough. I found a few more little ammonites, the odd piece of crinoid stem and what I think is a ‘toadstone’, which is a round, tooth-like structure from the palate of a Jurassic bony fish called Lepidotes.

In the photo below there are the following Jurassic fossils, which haven’t been noticed for 160 million years. Top left: what I believe is a ‘toadstone and something which probably isn’t a Lepidotes scale; middle top: star shaped ossicles from crinoids (which are like stemmed feather stars); top right: a tiny bivalve above what appears to be a rounded crinoid ossicle; lower half is all bits of various types of ammonite (coiled-shelled relatives of squid and nautiloids).