More Silurian Brachiopods

[Dave J]

Hi, here's another batch of brachiopods I found at the Wrens Nest, Dudley, UK. I have grouped these together as they seemed a similar shape. Upon closer inspection however, I noticed that they have differing amounts of ribs on the valves. (Ontogenetic?) I was hoping for some species names if possible. Thanks in advance.

[TqB]

Nos. 3 & 4 are Howellella elegans, small but typical and fully grown I think.

Nos. 1 & 2 may be the same genus but another species - I think you'd need a couple more views and a monograph/paper to ID further. Brachiopods are tricky and I'm not a specialist. 
Is @Tidgy's Dad around?

[minnbuckeye]

55 minutes ago, TqB said:

Is @Tidgy's Dad around?

No, Adam has not checked in for 2 months. Hope all is well.