Some fossils leave an impression on you - or on the rock! We spotted this impression of a spiriferid brachiopod on our way up Pen-y-ghent over summer. If you look carefully you can also see a crinoid ossicle. We're hoping for the rain to stop so we can get back out into the hills! #FossilFriday

Even in poor visibility on top of Ingleborough, we still found fossil plants! This is in the Millstone Grit at the very topmost part of the peak. #FossilFriday

Today's #FossilFriday post is a Sea Monster and some Seashells... Why? Because tomorrow afternoon we are back at the fantastic Land of Iron Museum to take people on a tour of the Jurassic ocean! 🐬 The ichthyosaur Temnodontosaurus zetlandicus from Loftus 🐚 A shell-bed of the bivalve Bositra

Some fossils really stand out from the rock. We spotted this vibrant solitary coral in the Yoredale series of rocks near Pateley Bridge. #FossilFriday

This trilobite has a very cute name - Dindymene - at less than 1cm across it's more like Diddymene! At 440 million years old this fossil is from some of the oldest rocks in the Yorkshire Dales, and appears to have been slightly distorted over the years... #FossilFriday 🏛️ Sedgwick 📷 GB3D Fossils

Picture in your mind a shark tooth... We bet this isnt the shape you were thinking of! The shark Ptychodus had a 'pavement' of these strange teeth for crushing hard-shelled prey. Ptychodus fossils have been found all over the world, including from Hessle near Hull. 🏛️ Sedgwick Museum #FossilFriday

Crinoidal limestone – limestone made of crinoids – what more needs saying? #FossilFriday 📍 Hebden, near Grassington

For #YorkshireDay and #FossiFriday we're celebrating the giant ammonites of Yorkshire! From the foreshores of Redcar with their monstrous Arietites, to the oolite of Malton with its mighty Perisphinctes - and beyond! Post your giant Yorkshire ammonite finds in the comments! 🏛️ Whitby Museum

Lurking at the bottom of the limestone in the dales is a rather impressive conglomerate – a rock made up of pebbles of other rocks. This piece was pulled out of a cave by divers and contains a few gastropods in amongst the pebbles – can you spot them? #FossilFriday 📍 Austwick

This weekend is Lancaster Dino Fest! But it's not just dinosaurs that had scales! Come along tomorrow to St Nic's Arcade Lancaster to find out about the ancient scaly inhabitants of Lancashire and help us build a Carboniferous coal swamp! 🏛️ Manchester Museum #Fossil Friday

With Lancaster Dino Fest just around the corner, we're highlighting fossils from Lancashire! Much of Lancashire is underlain by Carboniferous rocks, this lovely fern was found in one of the many coal mines from the area. #FossilFriday 🏛️ British Geological Survey 📷 GB3D Type Fossils

Digging a railway in N England in the 1800s usually resulted in finding huge fossil trees! These pair of Sigillaria were unearthed in 1837 in the outskirts of Manchester. On July 12th we're exploring the fossil trees of the NW at Lancaster Dino Fest, come along to find out more! #FossilFriday

With this hot weather it seems appropriate to post about the tropical inhabitants of the Jurassic Seas of Yorkshire. This little chlamys (a scallop) was found in a stream near Kirkbymoorside, although during the Jurassic it would have been a shallow tropical sea. #FossilFriday

Heading to Redcar tomorrow for the Fossil Walks with the Yorkshire Fossils Festival team? Before you head down to the beach, cast your eyes to the pavements. The promenade along the front is paved with some incredible Carboniferous fossils in black limestone. #FossilFriday

This lovely fossil is a sapling of a giant plant similar to those in Bradford's parks. It's photographed upside down to clearly show the 4 branching roots that all of these plants have - unfortunately the one closest has broken off and is missing. #FossilFriday 🏛️ Gallery Oldham

Some creatures are windows into the past - others are just windows... This fossil is a fenestrate bryozoan. The fenestrate part of the name derives from the Latin for window, and refers to the grid-like skeleton of these filter-feeding colonial organisms. 📍 Thorpe 🏛️ Gallery Oldham #FossilFriday

Last weekend Team Fossils in t'Hills (and friend) went on an adventure under the hills! We were thrilled to once again join Bradford Pothole Club at their winch meet at Gaping Gill.

Heading out to a park this #FossilFriday? Be sure to visit Horton Park in Bradford, where you can see one of three huge fossil trees! These Carboniferous giants were excavated from Clayton in the late 19th Century and placed on public display to "inspire future generations of geologists".

Looks like we're in for more glorious weather here in Yorkshire! With extremely low water levels it's a great time to head out to a stream to see what you can find! We recently spotted this lovely little Siphonodendron amongst the cobbles in a dry stream near Horton in Ribblesdale. #FossilFriday

Some beds are so distinctive we can use them to work out where we are in the sequence. One such bed is the Clayton Shell Bed. Found in the Harrogate area this shell bed contains a wealth of marine species including these beautiful spiriferid brachiopods. #FossilFriday 🏛️@leedsmuseums.bsky.social

Anyone for fossils and chips? After work we had a takeaway sitting by the riverbank, followed by a quick look along the river beach - where we found this lovely little Stigmaria! 📍 Gargrave #Yorkshire #YorkshireFossils #ukfossils #fossilplant #carboniferous #geology #gargrave #FossilFriday

Not long until the Geology Rocks event @ncmme.bsky.social Come along to meet Edestus - Huddersfield's mysterious ancient inhabitant! How will you interpret this fossils? What was its function? Come by our stall to create your own reconstruction! #FossilFriday 🏛️@britgeosurvey.bsky.social 📷 GB3D

It's been so warm in Yorkshire this week you could be forgiven for thinking you were in the Carboniferous, when tropical corals like this Lithostrotion were alive... ...Ok, so it's not really been tropical here this week, but it's been beautiful weather! #FossilFriday 🏛️ @galleryoldham.bsky.social

If you like this account please do give it a share! We are really struggling to get engagement on this platform. London’s geology is more varied than you think and we are here to spread the word, look after and promote London’s geosites #londongeology

Pendle Hill rises like the prow of a ship over Lancashire - famous for its witches but less so for its fossils! Most of the rocks of Pendle Hill are un-fossiliferous. You can however find a few fossils including these small bivalves (Posidonia) in scree on the flanks of the hill. #FossilFriday

We always do a #FossilFriday post on a fossil, but this week the fossil is on the post! (...groan...) Keep your eyes peeled for fossil plants in the Millstone Grit, they're everywhere! We spotted this piece of fossil plant in an old gate post near Keighley.

These shells are looking a bit bored! These circular drill holes were made by a predatory sea snail, which bored into the shell to feed on the creature inside. The fossil shell on the left is from the Jurassic of Grosmont. You can still see modern evidence of this behaviour today! #FossilFriday

There was an earthquake this morning in the Yorkshire Dales! Did anyone feel it? Shout out to the @britgeosurvey.bsky.social - if you are interested in British earthquakes or real-time seismograph monitoring, this is the website to go to... earthquakes.bgs.ac.uk/.../20250318....

In honour of William Buckland's birthday earlier this week, here is one of his hyena fossils! Buckland borrowed a live hyena in order to study its poo and the gnaw marks it left on bones. He then compared these with fossils from Kirkdale Cave in Yorkshire #FossilFriday 🏛️@morethanadodo.bsky.social

Happy 241st birthday to William Buckland! 🎂 Buckland's most famous link to Yorkshire was his investigation on the fossil bones of Kirkdale Cave, which led him to conclude the cave was an ancient hyena den!

As the weather improves, we're looking forward to getting back out into the hills to uncover more fossils and their stories. In the meantime, here is a lovely Stigmaria we found last autumn in the most Yorkshire sounding place of all the dales: Arkengarthdale! #FossilFriday

You wont find any pearls in this shell - but it's filled with calcite crystals! Brachiopod shells typically stay together after the animal dies, meaning when they are buried on the sea bed they become a pocket of space into which crystals can precipitate from mineral-rich water. #FossilFriday

Our goal is to celebrate Yorkshire's inland geology, but we have a confession: we're also experts on coastal fossils... If you're interested in the coast's palaeoheritage or are a palaeoart fan, check out this new book! Our team members Becky & Jed were scientific advisors for some of the artwork.

On this #FossilFriday in 1822, a significant event in the history of UK palaeontology occurred! William Buckland presented his study on fossils from Kirkdale Cave, providing evidence that hyenas once lived there rather than their bones being washed by a great flood. 🏛️ @leedsmuseums.bsky.social

Today is #FossilFriday and also Valentine's Day, so we've each selected a fossil that we love! Edestus - the whorl toothed shark from near Huddersfield (📷GB3D type Fossils 🏛️ @britgeosurvey.bsky.social)

We've had a great #FossilFriday digging through the archives of @sheffieldmuseums.bsky.social researching fossil trees. Many fossil tree stumps had a thin outer-layer of coal which often falls off when the tree is excavated This piece came from a stump near Barnsley and looks just like modern bark!

What does Settle have in common with the Atlas Mountains in Morocco? Surprisingly it's not the weather... This lovely cut and polished orthocone may look very similar to those exported from Morocco but it was collected from Settle in the Yorkshire Dales! 🏛️📷 The Yorkshire Museum #FossilFriday

Don't you hate finding a bone in your fish supper? Be glad it's not like this one! This strange bone is from the pectoral fin of the Carboniferous fish Gyracanthus. These spines made this fish awkward for a predator to swallow. #FossilFriday 📍 Bradford 🏛️ @leedsmuseums.bsky.social

Coal swamp dioramas are great, so much so that some places have more than one. Here's a pair at NMNH.

We are delighted to announce that the 2025 Young Science Writers’ Award is now open for entries!  Do you know any budding science writers aged 14-16 from state-funded, non-selective schools? Encourage them to submit! Check eligibility, deadlines & details 👉 zurl.co/PqRR5. #YSWA25

Sometimes you can tell where/when you are in the rock record if you find a particular distinctive fossil. There are lots of fossil-rich layers in the Vale of Pickering, but only one has lots of sea urchin spines. If you find these, you are in the Upper Jurassic Coral Rag. #FossilFriday

It felt like the Ice Age this week in Yorkshire! Most Ice Age fossils from the region are actually from the warmer interglacial periods, so we don't find many of the iconic animals like mammoths here. This beautiful fossil is one of the few Yorkshire mammoths! #FossilFriday

2024 was a very busy year! Here are a few highlights: 🐚 Becky's talk about ichthyosaurs at Whitby Museum - which naturally progressed into the galleries to look at the specimens in person! 🐚 The 10th Yorkshire Fossil Festival was the best yet! (despite the wind and our tent leaking)

The rocks on Brimham Moor near Pately Bridge are some 320M years old but the gravity defying structures we know today were formed in the last ice age. This beautiful image is by talented Pontefract based photographer Tim Hill.

This star might be too heavy to put on the Christmas tree... Despite being 165 million years old, this fossil is instantly recognisable as a starfish. The calcite skeleton has dissolved away leaving only delicate impressions in the sandstone. 📍 North York Moors 🏛️ Manchester Museum

People have been wearing antler headdresses since at least the Mesolithic period (11,000 years ago). These antlers were found at the famous site of Star Carr near Scarborough. 🏛️The Yorkshire Museum - we highly recommend their Star Carr exhibition! #FossilFriday

Moving from left to right in this image is like speeding through time. This siltstone is slowly crumbling away to dust and taking this Scolicia trace fossil along with it. 📍 Langthwaite #FossilFriday

Worried about getting coal for Christmas? It's not too bad, you might get a coal ball! These are concretions in the coal which protect the plant debris within them from being crushed. In thin section you can see beautiful fossils like this spore cone. #FossilFriday 🏛️Gallery Oldham 📍Mirfield

Ammonite shells have a series of chambers which were used to help control their buoyancy. The squishy part of the animal lived in the final chamber of the shell. In this specimen some of the chambers are filled with minerals ✨ 🏛️ Sedgwick Museum 📍 Pickering #FossilFriday

Hello! 👋 We are Fossils in t'Hills, a volunteer science communication group based in Yorkshire, England! Our team are all experienced palaeontologists who have full-time 'day jobs' in museums and science education.