Oncolites are sedimentary structures composed of oncoids, which are layered structures formed by cyanobacterial growth. Oncolites are very similar to stromatolites, but, instead of forming columns, they form approximately spherical structures. The oncoids often form around a central nucleus, such as a shell fragment, and a calcium carbonate structure is deposited by encrusting microbes. Oncolites are indicators of warm waters in the photic zone, but are also known in contemporary freshwater environments. These structures rarely exceed 10 cm in diameter.
The appearance of recent/subrecent freshwater onciods has been documented in two rivers in Bavaria: the Alz, whose source is the Chiemsee, and the Moosach, near Freising.
It wasn't particularly gracious
Of me to leave, but I found
The situation unbearably ostentatious
With you and her flirtatious
Had it been any other night
I might have stayed and put up a fight
I guess I wasn't impressed with your seduction
It wasn't an unlikely conclusion
For me to draw when I saw
You and her in some obvious love seclusion
Please pardon my intrusion
Had you said something too profound
I might have hung in and stood my ground
I guess I just wasn't digging our illusion
If you think I didn't see
I got news for you
If you think you're fooling me
I got news for you
It wasn't an irrational notion
That made me take the walk 'cause
I'm not inclined towards unwarranted commotion
Unnecessary motion
Had I thought you were some excuse
I might have stayed and turned on the juice
I guess I just felt a lack of real emotion
If you think I didn't see
I got news for you
If you think you're fooling me