Texas Heart Clam

[Silfo]

Hello folks. I was ordering my collection of "Texas Heart Clam". I took  a few pictures in the process.

All in line.

 

I have doubt about the little one. 

 

This one still have fragments of shell.

 

What are those marks? parasites?

 

I hope you have enjoyed it.
Good hunt.

[Tidgy's Dad]

I enjoyed them. 

Thanks for posting, great looking clam collection. 

[Miocene_Mason]

I’ve seen similar marks in similar specimens (chesacardium steinkerns) and I don’t know what they are either, maybe someone else does

Nice finds!

[ynot]

2 hours ago, Silfo said:

I have doubt about the little one. 

Looks like a different species to Me.

 

2 hours ago, Silfo said:

What are those marks? parasites?

Since they are depressions in the steinkern, they stuck out on the shell. The overall size and shape makes Me think tube worm shells were the culprit. (Living on the inside of the empty clam shell.)