Help with my book

[dinosaurman01]

Hello there. I am writing a story about the life of a young Styracosaurus. I just wanted to know, What species of dinosaur co-existed with Styracosaurus.

[bfler]

Daspletosaurus, the carnivore you can see figthing with Styracosaurus on many pictures.

[dinosaurman01]

Thanks. I new it was either Daspletosaurus or Albertosaurus. Any others?

[Griffin]

Styracosaurus co-existed with centrosaurus for sure.

[dinosaurman01]

Any others like hadrosaurs, ornithomimids, pterosaurs, raptors, ankylosaurs

[Thespesius]

Styracosaurus is known from the upper Dinosaur Park formation. Both Daspletosaurus and Gorgosaurus appear to have coexisted in that area.

Other animals from around that time are Lambeosaurus lambei, Prosaurolophus, Parasaurolophus, Euoplocephalus, Chasmosaurus irvinensis, Stegoceras, Ornithomimus, Chirostenotes, Dromaeosaurus, Hesperonychus, Saurornitholestes and Troodon. I think Montanazdarcho was found here, but I'm not sure.

This formation's ecosystem is pretty well known, and there are good remains of fish, crocodiles, birds, turtles, lizards, mammals and vegetable life

For reference, there's a book dedicated to it:
www.amazon.com/Dinosaur-Provincial-Park-Spectacular-Ecosystem/dp/0253345952

You can find a preview in google books:
books.google.com/books?id=lS55girEQsEC&printsec=frontcover&source=gbs_atb#v=onepage&q&f=false

Good luck with your story

[arioch]

Aug 22, 2011 13:32:43 GMT Griffin said:

Styracosaurus co-existed with centrosaurus for sure.

I think Centrosaurus is a bit older (actually given the similarities in both skulls there are some chance that it was Styraco main ancestor)

[dinosaurman01]

Thanks Thespesius. My book is still in the development stages. I hope to include the animals you've given me.

[dinoguy2]

Aug 22, 2011 16:43:28 GMT arioch said:

Aug 22, 2011 13:32:43 GMT Griffin said:

Styracosaurus co-existed with centrosaurus for sure.

I think Centrosaurus is a bit older (actually given the similarities in both skulls there are some chance that it was Styraco main ancestor)

Yeah, here's a chart showing exact time spans:
en.wikipedia.org/wiki/Dinosaur_Park_Formation#Biostratigraphy

Centrosaurus lived earlier and is probably the direct ancestor.

[Griffin]

Are you guys sure? Where did you get your numbers from?

I thought Styracosaurus remains were found alongside centrosaurus. I think there were even theories floating around that the two were just members of the same sexual dimorphic species for some time. In Holtz's book they are both listed as 80-72.8 MYA.

[DeadToothCrackKnuckle]

I nice illustration reference would be Julius Csotonyi's Judithian Montana Mural (It has the species the description below).

It's under 'Digital' csotonyi.com/

[dinoguy2]

Aug 22, 2011 23:31:17 GMT Griffin said:

Are you guys sure? Where did you get your numbers from?

I thought Styracosaurus remains were found alongside centrosaurus. I think there were even theories floating around that the two were just members of the same sexual dimorphic species for some time. In Holtz's book they are both listed as 80-72.8 MYA.

There's a good chart in this paper:
www.bioone.org/doi/abs/10.1671/039.029.0405?journalCode=vrpa
The Wiki chart was mostly based on it.

The Dino Park Formation doesn't even extend to 80ma ago so Holtz's numbers must be extremely generalized or represent a range of possibilities, not a precise span. No dino species lived for that long a time span.

[simon]

Aug 23, 2011 23:09:32 GMT dinoguy2 said:

Aug 22, 2011 23:31:17 GMT Griffin said:

Are you guys sure? Where did you get your numbers from?

I thought Styracosaurus remains were found alongside centrosaurus. I think there were even theories floating around that the two were just members of the same sexual dimorphic species for some time. In Holtz's book they are both listed as 80-72.8 MYA.

There's a good chart in this paper:
www.bioone.org/doi/abs/10.1671/039.029.0405?journalCode=vrpa
The Wiki chart was mostly based on it.

The Dino Park Formation doesn't even extend to 80ma ago so Holtz's numbers must be extremely generalized or represent a range of possibilities, not a precise span. No dino species lived for that long a time span.

Hmmmmm....thought that Iguanodons lived some 20 MY in the fossil record ...

[Griffin]

Then what is the ceratopsid that coexisted with styrac that was proposed to be a female form? I coulda sworn it was a centrosaurus.

[dinoguy2]

Aug 23, 2011 23:53:49 GMT simon said:

Aug 23, 2011 23:09:32 GMT dinoguy2 said:

There's a good chart in this paper:
www.bioone.org/doi/abs/10.1671/039.029.0405?journalCode=vrpa
The Wiki chart was mostly based on it.

The Dino Park Formation doesn't even extend to 80ma ago so Holtz's numbers must be extremely generalized or represent a range of possibilities, not a precise span. No dino species lived for that long a time span.

Hmmmmm....thought that Iguanodons lived some 20 MY in the fossil record ...

Iguanodon is a genus, not a species, and it's alos a genus that used to contain dozens of different species from over 20my. But individual species never last more than 5, tops. Most of those Iguanodon species have now been put in their own genera, because Iguanodon was massively overlumped and contained a lot of unrelated species.

In fact, the only "true" Iguanodon, I. bernissartensis, is only known to have lived for a million years, from 126-125 Ma ago.

Aug 24, 2011 0:33:24 GMT Griffin said:

Then what is the ceratopsid that coexisted with styrac that was proposed to be a female form? I coulda sworn it was a centrosaurus.

The Two Medicine Formation species of Styracosaurus (now renamed Rubeosaurus) lived alongside a few other ceratopsians.

Who ever suggested Centro was a female Styrac? I've heard that tossed around on the net but don't remember seeing it in any actual papers. It could be an old suggestion made before the biostratigraphy of the Belly River group was well understood.

[Griffin]

I think it was Peter Dodson.