Revising a poster

September 14, 2017

Yesterday, Matt and I showed our posters in a two-hour session at SVPCA, as two of about thirty. It was actually a hugely positive experience, and it’s left me wondering whether to prefer posters to talks at future conferences — one of us will write about it separately

My poster (left) and Matt’s (right), in their natural environment. Phil Mannion (Mammalia: PrimatesHomoninae) for scale.

But it was eye-opening to road-test what I’d thought was a pretty good poster with real visitors. I quickly realised that the “Biconcavoposeidon” poster was missing two important things.

First, there’s an insert that shows schematic views of amphiplatyan, opisthocoelous, procoelous and amphicoelous vertebra. But it should show two or three of each kind of vertebra, in articulation, so that the insert shows not only the isolated shapes, but how they fit together (or how, in the case of biconcave centra, they do not fit together.)

The second problem: another insert shows — again in schematic form — how vertebrae articulate in amphibians and mammals. But I really needed a third part of that figure showing how the articulation works in birds. I kept needing to point to such an illustration, and I didn’t have one.

But all is not lost: I am not bound to an imperfect poster for all time. The poster is published as part of a PeerJ Preprint, and I can revise that preprint as often as I like. Which means I can revise the poster.

And that is what I plan to do. I’ll make both of the changes described above, and update the published version. The question then becomes: in my publications list, where the poster is explicitly tied to the presentation at SVPCA 2017, should I continue to point to the version that I actually used at the meeting? I am inclined to think so.

But wait: there’s more.

It turned out at the conference that Matt was right when he advised me that I should have made the anaglyph bigger, and placed it at the top of the poster, at eye-level. Instead, I had a sequence of visitors who had to painfully kneel down and peer myopically at the small, low-down version that I used. (Or, more often, they didn’t bother looking at the anaglyph at all — which is a shame, because it’s really informative.)

(Seriously, folks: buy yourself some dirt-cheap red/cyan glasses, and start making use of these incredibly useful, and very simple-to-make, visuals. Everyone who looked at the anaglyph, without exception, was startled at how much more informative it was than the regular image.)

But I am not going to re-organise the poster along those lines in the forthcoming revision. Why not? Because I don’t expect to present the new version at a conference, where eye-level is an issue. Instead, I expect it to stand as a research artefact in its own right, to be viewed on screens or printouts — and for those purposes, the present composition is better. That’s true especially because most people downloading the poster won’t have the red/cyan glasses necessary to view what would be centrepiece of the putative revision; but when presenting the poster at a conference, I can provide the glasses (and I did).

So I think I have now landed on the notion that a poster as a research artefact is a fundamentally different thing from a poster for presentation at a conference. I didn’t see that coming.


If you don’t get to give a talk at a meeting, you get bumped down to a poster. That’s what’s happened to Matt, Darren and me at this year’s SVPCA, which is coming up next week. My poster is about a weird specimen that Matt and I have been informally calling “Biconcavoposeidon” (which I remind you is not a formal taxonomic name).

Here it is, for those of you who won’t be at the meeting (or who just want a preview):

But wait — there’s more. The poster is now also formally published (Taylor and Wedel 2017) as part of the PeerJ preprint containing the conference abstract. It has a DOI and everything. I’m happy enough about it that I’m now citing it in my CV.

Do scientific posters usually get published? Well, no. But why not? I can’t offhand think of a single example of a published poster, though there must be some out there. They are, after all, legitimate research artifacts, and typically contain more information than published abstracts. So I’m happy to violate that norm.

Folks: it’s 2017. Publish your posters.


  • Taylor, Michael P., and Mathew J. Wedel. 2017. A unique Morrison-Formation sauropod specimen with biconcave dorsal vertebrae. p. 78 in: Abstract Volume: The 65th Symposium on Vertebrate Palaeontology and Comparative Anatomy & The 26th Symposium on Palaeontological Preparation and Conservation. University of Birmingham: 12th–15th September 2017. 79 pp. PeerJ preprint 3144v2. doi:10.7287/peerj.preprints.3144v2/supp-1


August 15, 2017

Here is a fascinating sequence of five consecutive posterior dorsal vertebra — AMNH FARB 291 from the”Big Bone Room” at the AMNH:

AMNH FARB 291, five consecutive posterior dorsal vertebrae of a probably brachiosaurid sauropod, in right lateral view. The vertebrae are embedded in a plaster block, which has been desaturated in this image.

Matt and I first saw this specimen back in February 2009, when we were mostly there to look at Apatosarusminimus (and then again in 2012). As soon as our eyes lit on it, we couldn’t help but be captivated by its bizarre biconcave centra. We immediately started flippantly referring to it as “Biconcavoposeidon” — the ugliest name we could come up with — and in our subsequent discussions the name has stuck (often abbreviated to “BCP”).

  • Taxonomic note: for avoidance of doubt, “Biconcavoposeidon” is not and will never be a formal taxonomic name, only an informal specimen nickname. If at some future point we conclude that this specimen represents a new taxon, and name it, we will definitely not use the name “Biconcavoposeidon”. If you ever use the name, please do not set it in italics.

As you can see in this front view, the specimen is sheared: the upper part of the vertebrae have been displaced to their left (which is the right as we see it in this image):

AMNH FARB 291, most anterior of five consecutive posterior dorsal vertebrae of a probably brachiosaurid sauropod, in anterior view.

Apart from the shearing, though, and the truncation of the neural spines shortly above the transverse processes, the specimen is in pretty good nick. Crucially, it’s not been “restored” in plaster to conceal what is and is not real bone — unlike many specimens of that era. It came out of the Bone Cabin quarry in 1898, back when scientific information was routinely discarded in order to obtain a more beautiful-looking specimen.

This is the specimen that I’ll be presenting at SVPCA this year — though only as a poster, unfortunately: there’s no talk for me, Matt or Darren this year. We’ve posted our abstract (including the illustration above) to the nascent PeerJ collection for SVPCA 2017, and we’re looking forward to seeing more of the materials from that conference — abstracts, then manuscripts, then papers — appearing in the collection.

So far as we know, there’s no other sauropod specimen with biconcave posterior dorsal vertebrae. (And, no, Amphicoelias is not an exception, despite its name.) But have we missed any?

Re-reading an email that Matt sent me back in January, I see this:

One quick point about [an interesting sauropod specimen]. I can envision writing that up as a short descriptive paper, basically to say, “Hey, look at this weird thing we found! Morrison sauropod diversity is still underestimated!” But I honestly doubt that we’ll ever get to it — we have literally years of other, more pressing work in front of us. So maybe we should just do an SV-POW! post about the weirdness of [that specimen], so that the World Will Know.

Although as soon as I write that, I think, “Screw that, I’m going to wait until I’m not busy* and then just take a single week* and rock out a wiper* on it.”

I realize that this way of thinking represents a profound and possibly psychotic break with reality. *Thrice! But it still creeps up on me.

(For anyone not familiar with the the “wiper”, it refers to a short paper of only one or two pages. The etymology is left as an exercise to the reader.)

It’s just amazing how we keep on and on falling for this delusion that we can get a paper out quickly, even when we know perfectly well, going into the project, that it’s not going to work out that way. To pick a recent example, my paper on quantifying the effect of intervertebral cartilage on neutral posture was intended to be literally one page, an addendum to the earlier paper on cartilage: title, one paragraph of intro, diagram, equation, single reference, DONE! Instead, it landed up being 11 pages long with five illustrations and two tables.

I think it’s a reasonable approximation to say that any given project will require about an order of magnitude more work than we expect at the outset.

Even as I write this, the top of my palaeo-work priority list is a paper that I’m working on with Matt and two other colleagues, which he kicked off on 6 May, writing:

I really, really want to kill this off absolutely ASAP. Like, seriously, within a week or two. Is that cool? Is that doable?

To which I idiotically replied:


A month and a bit later, the answers to Matt’s questions are clear. Yes, it’s cool; and no, it’s not doable.

The thing is, I think that’s … kind of OK. The upshot is that we end up writing reasonably substantial papers, which is after all what we’re meant to be trying to do. If the reasonably substantial papers that end up getting written aren’t necessarily the ones we thought they were going to be, well, that’s not a problem. After all, as I’ve noted before, my entire Ph.D dissertation was composed of side-projects, and I never got around to doing the main project. That’s fine.

In 2011, Matt’s tutorial on how to find problems to work on discussed in detail how projects grow and mutate and anastamose. I’m giving up on thinking that this is a bad thing, abandoning the idea that I ought to be in control of my own research program. I’m just going to keep chasing whatever rabbits look good to me at the time, and see what happens.


Mike gets a shot of a sauropod sacrum in the AMNH basement.

…with sauropod bones!

Lots of basements have them. Some basements have had them for decades, and other basements have been newly constructed to house them. So you can take advantage of that retro chic while taking your basement into the 21st century!

What the heck am I talking about?

Matt ponders the mysteries of evolution in the AMNH basement.

One of the nifty features of WordPress is that you can track the search terms that people are using to find your blog. After Mike put up his “Suboptimal location of Mamenchisaurus” post, we noticed that one of the top search terms bringing people to SV-POW! was ‘basement’. Yeah, that’s right, ‘basement’. In fact, ‘basement’ is the 5th highest search term of all time that has brought people to SV-POW! And that’s not unusual–in fact, of the top 5 search terms bringing people here, only one is sauropod-related (Brachiosaurus, at number 2).

As of this posting, here are the Top 10 non-sauropod search terms of all time that have led people to SV-POW!, listed by rank, and including the number of hits in parentheses:

1. rabbit (18,235)

3. leopard seal (12,797) — this explains why “Sorting out Cetiosaurus nomenclature”, which even Mike admits is the most boring topic we’ve ever covered here, is the 11th most popular post of all time on this blog!

4. flamingo (10,974)

5. basement (9743)

12. twinkie (3434)

14. flamingos (3102) — double dipping for the “Necks lie” post!

20. pig skull (2099)

21. savannah monitor (2078)

22. varanus exanthematicus (1936) — double dipping for “Four complete, articulated, extant sauropod skeletons–yes, really!”

24. shish kebab (1660) — double dipping for “Sauropods were corn-on-the-cob, not shish kebabs”.

Mike and Darren discover a new dwarf sauropod in the basement at Oxford.

We’re apparently getting a lot of hits from people who want to remodel their basements. I’m all for that (the remodeling, and the extra hits), so I’m embracing it. You want basements, we got ’em. We’ll drown you in pictures of sauropod vertebrae in basements. Did I say basement? Basement, basement, basement!

(Why am I pushing basement and not rabbit, flamingo, or leopard seal? Partly because basement used to be our number 1 search term and I want to see its fortunes rise again. Partly because those other things are at least biological, and it cracks me up to have a common architectural term bringing people to the blog. And partly because I want to upstage John and his freezers.)

Basement Renovation Instructions

This short guide will help you with your project.

Is your basement in a museum?

If YES, then:

1. Fill it with sauropod vertebrae.

2. Call us.

If NO, then:

1. Fill it with anything you like except sauropod vertebrae.

2. Support your local museum.

Don’t forget: basement!