Friday mystery object #194 answer

On Friday I gave you this rather unusual looking skull to identify:

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In fact, it’s so unusual that it doesn’t even look entirely like a skull, so it’s not surprising that the specimen proved a bit of a challenge.

Some elements (like the lower jaw) look a bit like they’re from a turtle, but other elements of the skull shape look more like they belong to an amphibian – from something like Necturus perhaps. Despite these similarities to some of the ‘basal’ tetrapods, the skull is actually from a fish.

The reason why it looks quite similar to a tetrapod skull and less like the average fish is because it belongs to a member of the Lobe-finned fish (Sarcopterygii) which are more closely related to the tetrapods than the more common and diverse Ray-finned fish (Actinopterygii). Despite the difficult identification, microecos managed to spot that this was a Lungfish and henstridgesj managed to identify the species as being the  Continue reading

Friday mystery object #193 answer

On Friday I gave you this specimen to identify:

mystery193

Unsurprisingly you all recognised it as a tortoise carapace. The species was a bit more difficult though as tortoises can display quite a lot of variation in their colour and shell structure within a species.

There were various good suggestions, but in the comments only Barbara Powell made reference to what Colin McCarthy and myself thought this was from, although Maggie J Watson also identified it in a tweet.

When we saw the specimen we thought that it was probably a  Continue reading

Friday mystery object #193

This week I’ve decided to give you an object to identify that came up in our collections review recently with the splendid Colin McCarthy. We have a lot of these in our collection, most of which were unidentified. Any idea which species this is from?

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You can leave your suggestions below and I’ll respond during the day. Enjoy the challenge and have a thoroughly enjoyable Easter break!

Friday mystery object #192 answer

On Friday I gave you this unidentified specimen from the Horniman’s collections to take a look at. I had already had a go at working out what it is, but it never hurts to get a second opinion.

mystery192

It’s actually a bit of a generic looking overall shape, perhaps reminiscent of a owl or a maybe a pheasant of some sort. However, the nares (nostrils) are very small and round and set in a bill that is sharp, shortish and very solidly constructed, which is something you only really see in a few passerines, some parrots and the falcons. The skull is too big for a passerine and the bill is totally the wrong overall shape for a parrot, which leaves us with a falcon – a fairly small one at that.

From there the shape of the palate and the proportions of the cranium led me to a species identification that I’m pleased to say agreed with that proposed by Tony Irwin and Wouter van Gestel (who eloquently explained the indicative characters that I mentioned above). We all think that this is the cranium of a  Continue reading

Friday mystery object #192

This week I have a skull with no data that I came across in the collections a little while back. I think I managed to get a decent identification on it, but I’d be interested to see if you all agree:

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What do you think it is? As usual you can put your suggestions below. Thanks for helping out!

Friday mystery object #191 answer

On Friday we had this skull submitted by Dr Ben Swift for identification:

mystery191amystery191c

Now this is quite obviously a primate, as it has a bony ring around the orbit, a bony back wall to the orbit and just eight incisors as opposed to the twelve that forms the basal condition for mammals. The teeth also tell us that this is an Old World Monkey (Cercopithecidae), since these primates only have eight premolars instead of the twelve you find in the New World Monkeys (Platyrrhini). The small canines suggest that this is the skull of a female.

From there it starts getting a bit more difficult. The fairly small size of the specimen ruled out a few genera, but the main features that helped narrow down the possibilities were the very flat face, the heavy bony rings around the orbits, the flaring of the zygomatic arches (cheekbones) and the short and rounded braincase. Effectively the only way to consider these features is to look at a lot of comparative specimens (the excellent Mammalian Crania Photographic Archive proved very useful for this).

After a lot of consideration I found myself in agreement with the suggestion of something from the genus  Continue reading

Friday mystery object #191

This week I have a skull for you to have a go at identifying that has been submitted by Dr Ben Swift. Any idea what species this belongs to?

mystery191a mystery191b mystery191c

I’ll be trying to get an identification on this specimen myself and I’m not the best at primates, so your suggestions and comments would be appreciated – let’s see if we can crowdsource an identification!

Friday mystery object #190 answer

On Friday I gave you this skull to identify:

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The animal it comes from is quite distinctive, with loads of character, so it’s no big surprise that so many of you managed to identify it.

So well done to Jake, Dave Godfrey, henstridgesjMieke Roth, Wouter van Gestel, Steven D. Garber and Crispin – this is indeed a  Continue reading

Friday mystery object #190

This week I have a skull with character for you to identify. It will probably prove to be little challenge to some of you, but if you know what it is please try to use cryptic clues so you don’t spoil the game for others:

mystery190

Put your thoughts below and I’ll be sure to make comments during the day. Enjoy!

Friday mystery object #189 answer

On Friday I gave you this skull to have a go at identifying:

mystery189

I didn’t do a very good job of responding to comments I’m afraid, as I was rather busy at day two of this year’s Natural Sciences Collections Association conference at the Yorkshire Museum. Nonetheless, you managed to work out what this specimen came from without any input from me.

Jake spotted that it was the skull of a big reptile, more importantly, a big reptile with heterodont dentition (meaning it’s teeth aren’t all the same shape). That narrowed down the possibilities considerably. From there henstridgesj, Wouter van Gestel and Barbara Powell came to the conclusion that this is the skull of a  Continue reading

Friday mystery object #189

This week I have another interesting skull that came up during one of our recent reviews:

mystery189

Any idea what animal this belonged to? You can put your suggestions below and I’ll do my best to reply, although I will be at the NatSCA conference today, so it will depend on the quality of internet access on my phone.

Friday mystery object #188 answer

On Friday I gave you this previously misidentified specimen to have a go at identifying:

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It turns out that you did a great job!

Jake and Mieke Roth immediately spotted that the skull belonged to a large turtle of some kind, henstridgesj narrowed it down to a fresh-water turtle and he and Steven D. Garber recognised that despite the large size, it wasn’t from one of the snapping turtles (which is what the original identification mistakenly had it as) and that it was more likely to be from one of the side-necked turtles. However, microecos went one better and managed to get a species identification for the specimen that agreed with the identification that our visiting reptile expert Dr Colin McCarthy who suggested  Continue reading

Friday mystery object #188

This week I have an object that came up in one of the Bioblitz collections reviews at the Horniman recently. It’s a great specimen, but it was misidentified by the preparators when it was purchased back in 1937 and that identification had never been corrected. Any idea what it should have been labelled as?

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You can put your suggestions, questions and observations below and I’ll do my best to reply. On Monday I’ll post the identification that our incredibly helpful specialist reviewer suggested, so you can see how you did. Good luck!

Friday mystery object #187 answer

On Friday I gave you this somewhat odd object to identify:

mystery187

My first thought when seeing it was Bowser from the Mario games:

Bowser. New Super Mario Bros. 2: © 2012 Nintendo

This probably isn’t the worst place to start the identification, since the animal with this feature was clearly big, scaly and toothy. This was obviously in the minds of Barbara Powell and Wouter van Gestel, who reached the correct conclusion that this is the structure from the tip of the snout of an adult male  Continue reading

Friday mystery object #186

This week I have an object for you that came through as an enquiry from Mark Ribbands via William Vine. It’s 190mm long and was found in the forest of South Thailand:

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Any idea what it came from? As usual you can leave your suggestions below – I may not be able to respond during the day as I’m at a seminar on Natural Science Collections and the Law, but I’m sure that there will be some interesting discussion about this object from the regulars!

Friday mystery object #185 answer

On Friday I gave you this object to identify:

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I thought it might have posed a bit of a challenge, since it’s part of a species of bird that you don’t find in Europe or North America. Of course, I was forgetting the skills of the Zygoma community. Everyone recognised it as the sternum of a bird with weak flight muscles and Wouter van Gestel spotted the species and was supported in his identification by Barbara Powell and Robin.

This is the sternum of a Continue reading

Friday mystery object #185

This week I have an interesting mystery object for you. It’s quite characteristic, but not necessarily very familiar, so it may prove a bit of a challenge:

mystery185

Any idea what this piece of bone is and what it came from? You can put your thoughts below and I’ll do my best to get back to you. Good luck!

Friday mystery object #184 answer (well, not really)

On Friday I asked for your help with identifying this object:

mystery184

There were a few interesting suggestions from beaks to bladders, but so far nothing really corresponds with the structure of this specimen. It’s very weird.

It looks like it’s probably from something aquatic, perhaps the ossified swim bladder of a fish, but I’m by no means sure of that.

I will see if I can read the notes written on the specimen under a UV light, but for now I have to admit that I am still stumped. Please let me know if you recognise what it is!

[N.B. from the discussion and links in the comments below, it emerges that this is the hyperostotic spine from the anal fin of a fish]