Not easy to explain

The majority of the tracks and traces are not well preserved and thus harder to interpret, if the interpretation is possible at all.
I have photographed something that looks like a sequence of rhytmical skratching of the shallow sea floor My first guess was: the small pterosaur swim traces (highlighted in the circles); the second guess is the water bird swim traces; the third is the trace fossils of fish fins swishing along bottom of shallow water;... or the artifact. Which one would you choose?
The age is Mid-Cretaceous (late Albian) of Pula.

Having epiphany, but lacking camera

It was a nice long weekend in Pula. It was a bit too hot and humid but on a bright side the water was warm and pleasant for snorkeling. I had an epiphany on a rocky beach we frequented over the years. While waiting to get dry enough to take our clothes on after swimming I took a good lock at the rock we were standing on. It was full of small theropod tracks! They were poorly preserved, faint and hardly detectable, but they were there! I managed finding a couple of trackways consisting of three consecutive tracks of the same animal in each trackway. Unfortunately, I didn't bring camera with me and we were soon to take our trip back to Ljubljana.

Some nice strong current ripples. The layer has been uncovered recently, so it looks like the tide has receded and left these traces just hours ago. In fact, it was about 100 million years ago.

Why do I hate ripple marks? Because they can trick you into thinking that you have found a dinosaur track! It is tough to be certain in a case like this.

Nice old ripple marks (100 million years old!)

A poorly preserved theropod trackway (Pula). Something is strange about this footprint. It seems like it lacks toe #2 or that it is very short (?) Could it be a dromaeosaurid? The theropod tracks in Pula that could be attributed to this group of dinosaurs are extremely rare. At the time (Early Cretaceous) Istria (ADCP) was probably attached to the Afro-Arabian continent.
 

A giant saurood trackway (Pula)

A small salt pond In Pula

Above: A nice natural cast footprint of a medium-sized ankylosaur (Pula)

Living on the hedge!

This looks like a sauropod pes track... or on the second look it may be an iguanodontoid track.. I'll have to check on this one.

I can see some tracks here ... hmmm..or do I?

Dinosaurs were messy ... (2)

If you were suspicious of my theropod tracks interpretation from the previous post, here is a photograph from the same outcrop showing a rather poorly preserved (possibly consisting of under prints) theropod trackway of the animal that had the same shape and size of the foot.

The tracks on the right don't have the distinctive features, so I couldn't figure out their makers (yet).

Dinosaurs were messy ...

... when leaving their tracks!

So, you have decided on finding your own dinosaur tracks? The ones nobody has noticed yet? Or at least nobody has  announced his/her finds publicly. You are expecting to find a nice trackway on a relatively flat rocky surface? Possibly three-toed nice and clear theropod footprints in a sequence? Yeah, right! Chances of finding a track like that are almost equal to finding a nicely preserved relatively complete and articulated fossil skeleton. 

Take a look at the muddy paths where humans and animals left their traces today or yesterday. Are these all well defined traces? Come back in a week and see what's left of them. Consider that dinosaurs left their tracks millions of years ago...

Here is my attempt of interpreting some (probable) theropod tracks from Pula, that are about 100 million years old. They were preserved during the low tide.