My trilobite of the week.

[rew 365]

I am trying to get my fossil collection photographed.  I have more trilobites than anything else, so to light a fire under this ever delayed project, I'm going to post a new bug in my collection each week.

 

To start off, here is a plate of Primaspis crosotus trilobites from the Kope Formation.  These are itty bitty bugs, but show all the typical Ondotopleurid features -- pleural and pygidal spines all around, and fringes of short spines on the free cheeks.

[rew 365]

Two more closeups of Primaspis crosotus

[Darktooth 3,145]

That's a nice plate,looking forward to seeing more!

[Tidgy's Dad 10,781]

Really nice trilobite! 

I look forward to seeing this thread develop. 

[Jaimin013 871]

Very nice thanks for sharing pics!

[SailingAlongToo 565]

Great photography and bugs! 

[Ludwigia 4,822]

That's a nice taste of more to come. I guess we'll be seeing more here in a week's time, eh? Thanks!

[Paciphacops 214]

[RJB 2,421]

 Thats a really cool slab of rock.  and me too, looking forward to seeing more. 

 

RB

[UtahFossilHunter 1,439]

Very nice! I’m excited for next weeks addition.

[PaleoNoel 882]

Great fossils and great photos! Greetings from your fellow granite stater. I understand the struggle.

[Wrangellian 2,023]

Nice one. Is that a crinoid stem at the top? Collapsed in on itself?

I hope you add each week's new bug to this topic so I won't miss any of them.

[rew 365]

That is a bit of crinoid stem.  I don't think it's folded over, I believe that's just how that stem looks.  And there's a tiny brachiopod next to one of the bugs.

[ynot 7,110]

Nice piece!

[rew 365]

Trilobite #2.  Much of modern paleontology started in the United Kingdom, but I have only a few U.K. bugs.  Here's one.  Ogyginus cordensis, a Middle Ordovician asaphid from Wales:

[Archie 947]

Beautiful specimens! Love the Kope Formation plate 

[Malcolmt 777]

Ah.... something to look forward to each week....

 

[ynot 7,110]

[Tidgy's Dad 10,781]

On 1/20/2019 at 12:28 AM, rew said:

Trilobite #2.  Much of modern paleontology started in the United Kingdom, but I have only a few U.K. bugs.  Here's one.  Ogyginus cordensis, a Middle Ordovician asaphid from Wales:

That's a beauty, excellent specimen! 

[rew 365]

Trilobite #3:  Selenopletis gallica.  These Early Ordovician trilobites are from the Upper Fezouata Formation near Mecissi, Morocco.  As with many Moroccan trilobites these are given the same name as a European species, in this case, Selenopeltis gallica from Iberia, and will be called this unless and until a formal description is done, which might wind up assigning a different species and/or genus to these bugs.

 

[rew 365]

Here are the close ups.  The trilobites are about 32 mm long, including spines.

 

[rew 365]

There are going to be two bugs this week, both humble Proetids.

Trilobite #4.  Gerastos granulosus.  This is a common Middle Devonian trilobite.  This specimen came from Foum Zguid, Morocco.

[rew 365]

What the heck -- I'm doing three trilobites this week, all humble Proetids.  Trilobite #5 is a species of Pragoproetus from Tafroute, Morocco.  It is Early Devonian (Pragian stage) in age.  If someone here knows which species within the genus it is, I'd like to know.

 

[ynot 7,110]

[UtahFossilHunter 1,439]

Very nice so far! Bonus trilobites in trilobites of the week are the bomb