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Found 21 results

  1. Hi everyone, Not last Wednesday, but the one before that one, I went to the Zandmotor again for a hunt, and it went well! As soon as I went down on the beach (I was still in the Kijkduin area, not yet on the Zandmotor), so only some 5 minutes or so into the hunt, I found this little ugly thing in the sand: It's a small (slightly incomplete) mammoth (Mammuthus primigenius) lamella! It's from the late Pleistocene, some 40'000 years ago. It's nowhere as nice as the previous one I found, but this one's cool too. Still happy to have found it because lately I've really been on a dry spell when it comes to the mammal stuff, so hopefully this is a sign that I'm gonna find some more again. After that, I continued hunting for some 4 hours or so, until the rain chased me away. The weather, although sunny at first, was really not great because there was a lot of wind. This made it a bit colder, but more annoyingly there was sand going everywhere. At some point I was checking out a little sand cliff for some shells, but had to turn my back immediately because the sand was going in my eyes. Also, the 'wich' part of my sandwich became essentially irrelevant... I did make some cool fossil shells finds though:
  2. Amazing hunt at the Banjaard

    Hi everyone, I'm really late on this one, but better late than never! On the 6th of April I went to the Banjaard beach again, and although our hunt was short it was super interesting! I started off by searching the coastline, where I found lots of bivalves such as Tridonta borealis, Mya truncata, Mytilus edulis, Arctica islandica, etc. After a while I went higher up the beach and started looking for the gastropod shell banks we had a lot of luck at last time. Unfortunately I didn't manage to find them... which tells me that the banks come and go, and that that previous hunt was just really lucky. However we got lucky again this time, by finding another type of shell bank! This giant 'cloud' you see here yielded a crazy amount of smaller rare fossils!
  3. Hi all, This weekend, after the long, boring and annoying winter months (it's always mildly cold, but very windy and rainy in the Netherlands in winter... horrible fossil hunting conditions) spring finally let out the tip of its nose, with a nice sun, blue sky and decent temperature. About time! We all know what this means... time to do some fossil-hunting! So on Sunday morning I woke up, prepared my fossil hunting equipment (mainly bags and boxes; no tools needed for this beach), made myself a lunch, and set out at 13:00 to the bus. The bus ride to Kijkduin takes me about an hour, so I arrived at the beach at 14:06. But, as usual, because it's by bus I'm not dropped off at the ideal spot, so I have to walk about an hour on the beach, due south-west, to actually get to the Zandmotor. But that wasn't much of a problem... this part of the beach already has a few fossils to yield, although not as many, so you can start the fossil hunting right away. Didn't find anything significant though in that first stretch. You're literally walking on lots of Eemian fossil shells, but these species are all very common. Spisula solida, Cerastoderma edule, C. glaucum, and Macoma balthica are just not worth picking up, unless it's a specimen that stands out to me (unusual size, pathologies, weird colors, etc). Here's a map to better illustrate the places I will mention. Note that it's approximate. Also, the sand cliffs and the shell banks often move around, we are after all on a beach with lots of wind and water movement, so these positions aren't defined. But this is what was the case this weekend. And the pink Zandmotor "limit" isn't accurate either, it's more my view as in "this is good fossil-hunting territory". By the way, that red S is where the bus drops me off. Oh, and that big puddle in the middle of the beach is actually a very popular kite-surf spot, especially for amateurs because there are no waves. This time I started off the hunt at the "sand cliffs" as I like to call them, (2m tall at the highest point, so not real cliffs), then went on to an area more to the south of the Zandmotor (at the bottom of the dark blue line on the map). It was my first time properly hunting that little area, and it turns out it's actually a good spot, I found lots of good bivalve fossils there! After an hour or two I sat down to eat my lunch (yes, a very late lunch, but time flies by when you're fossil hunting! I'm actually still surprised I remembered to eat my lunch at all, I usually get so caught up in the hunt that I often just completely forget to eat my lunch at all ), then went onto the richest part of the Zandmotor when it comes to shells, the..... (drumroll please)............. shell banks! I know, very unexpected! The real Eemian shell banks are usually lying on the north-center of the Zandmotor, between the cliffs and the shoreline. That is when I made my two favorite finds of the day: a gorgeous Propebela turricula, and a bit later, Gari fervensis! After a total of about 5 hours hunting, I decided it was time to get back home, so I called it a day. But man was it a good day! I found an incredible diversity of fossil shells, especially bivalves. Onto some pictures, starting with some location pics.
  4. Hi everyone, My last hunt of 2018 was incredible. And quite surprising too! For Xmas, we went to Middelburg in Zeeland to visit my mother's family, which is always a huge load of fun for me because I get to hang out with all my cousins, that I don't see very often. Anyways, one of the days, they all wanted to do a big walk on one of the beaches. At first they wanted to go to Dishoek, but I managed to convince them to go to the Banjaard instead. Once arrived, we split into 2 groups: one was my mother, my eldest cousin (18), my 2nd-youngest cousin (6), and I. All the rest went to the other group. The other group just walked, but our little group did something much more interesting... You guessed it: fossil hunting! As soon as we got onto the beach, we almost immediately found our first fish vertebra, but after that we seemed to have hit a small dry spell for nothing really worthy was being found. A few common fossil bivalves here and there, but nothing more. For my two cousins, it was their first time fossil hunting, and we had to give them a few examples to show them what to look for. I told them to focus on the fish vertebrae, because these were the easiest to recognize. The smaller one also did a lot of shell-hunting on her own, always picking up the most colorful ones and saying this one was Mama shell, this one Papa shell, this one Sister, etc until she made one giant family of orange shells Then after about an hour or two of hunting with rather little success, we finally hit these little shell banks on the beach. And there, BINGO! Gastropod after gastropod, we couldn't stop finding an incredible amount of them. On the Dutch shores, fossil (and modern too) gastropods are generally much less common than fossil bivalves. So the amount we found here was very surprising!
  5. Retreating Ice Exposes Arctic Landscape Unseen for 120,000 Years By Stephanie Pappas, Live Science, January 28, 2019 https://www.livescience.com/64605-arctic-glaciers-melt-hidden-landscape.html https://www.iflscience.com/environment/glacial-melt-is-exposing-land-not-seen-for-more-than-40000-years/all/ The open access paper is: Simon L. Pendleton, Gifford H. Miller, Nathaniel Lifton, Scott J. Lehman, John Southon, Sarah E. Crump and Robert S. Anderson, Rapidly receding Arctic Canada glaciers revealing landscapes continuously ice-covered for more than 40,000 years Nature Communicationsvolume 10, Article number: 445 (2019) Published: 25 January 2019 https://www.nature.com/articles/s41467-019-08307-w#Abs1 Yours, Paul H.
  6. Hi all, Last weekend, there was an excursion organized by the Paleobiologische Kring (a fossil club here in the Netherlands) on the Zandmotor. As you know I had already been quite a lot of times on the Zandmotor, because it is my usual spot. But seeing that a few of my contacts, namely a fossil friend I had met at a fair, Thijs, as well as the curator of the natural history museum in Rotterdam Bram Langeveld (that I know pretty well), were going to the trip, I decided to join in just for the fun of hunting with others. Turns out that was a really smart decision, because their company brought me a lot of luck! The day started off with a small lecture by Bram about the Zandmotor and the finds that can be made there. For most people it was their first time on the Zandmotor, so the lecture was pretty useful for them. Then after that, we went onto the beach to start finding some fossils ourselves. We went from the south side of the beach (Monster), whereas I usually always come from the north side (Kijkduin) as it is closer to my house. The weather was absolutely ideal for fossil hunting. Not cold, but not very warm either. Very little wind, blue sky, few clouds, perfect. During the trip, nearly everyone was looking for mammal (mammoth and other megafaunal Ice Age species) bones. I was, along with two or three others, the only one also looking for shells. As soon as I got onto the beach, I already found a nice partial Mactra glauca, a pretty rare species. A good start already! It didn't take long before some people found mammoth bone fragments. During the hunt, I talked quite a lot to other hunters, especially to Bram and the other shell hunter. Very interesting discussions, I learned a lot of new little details about shell identification. Meanwhile, I was finding some of the most incredible fossil shells! Species that would normally be a trip-maker I found several of, and some beyond-rare species also flashed under my eyes. It was unbelievable how much I was finding! At the end of the hunt, because we went back to the starting point (south side), after having said bye to the others, I had to walk all the way to the north side, so I spent some more time looking, and that revealed even more finds. I couldn't believe how much I was finding! The sun was setting at the time I just left the beach, and that's also when the clouds started to thicken: While walking along the bike path towards the parking where my dad was waiting to pick me up, I made one last very surprising and definitely fun find: a great mammal vertebra! Just laying there on the side of the bike path in plain view. It was pretty sun-bleached, so it must have sat there for quite some time. I was surprised that no one had noticed it before me, but didn't complain either. I suppose another hunter had found it and accidentally left it there? Regardless, it was a fantastic way to finish up this incredible hunt. Apart from the sunset pic above, I didn't take any location (or in-situ) pics during the hunt. If you want to see some more pictures (and finds) from this location you can search the forum for "Zandmotor"; this should bring up some results of the trip reports I've previously made of some of my hunts (I only make trip reports of my most successful/interesting ZM hunts).
  7. Banjaard beach hunt

    Hi everyone, Last month, as I stayed a weekend at my grandparent's house, we decided to go to the Banjaard beach for some fossil hunting. I had asked Bram Langeveld (Natuurhistorisch Rotterdam) and Ronald Pouwer (Naturalis) which one of the "Zeeuwse stranden" (beaches of Zeeland, a province in the south-west Netherlands) was currently the best to hunt at. Both said that they were hearing some good stuff about the Banjaard beach recently, which has mainly Pleistocene fossils (including Eemian shells). Seeing that I can also find Eemian shells and other Pleistocene stuff at the Zandmotor, my usual hunting spot, I was a little reluctant at first, but still ended up going there. Good thing I did, because it was a rather successful hunt! The weather was really nice, bright blue skies and fresh (but not cold) temperatures.
  8. Bunch of micro-mollusks

    Hi all, A handful of days ago there was a sand pile right in my neighborhood. Not sure why it was there, probably someone was making constructions to their house, but in any case I was happy. That's because that kind of sand comes straight from the North Sea, which is full of Eemian fossil sediments! So I took a little plastic bag and spent an hour or two looking in that pile of sand for fossils. The very common Eemian bivalves came up abundantly (so species like Mactra plistoneerlandica, Cerastoderma edule, C. glaucum, Macoma balthica, etc), but that is not what I was too excited about. Seeing that the sand pile was rather small, it forced me to focus on just that little pile. Which is great, because therefore I actually started looking much more closely, and hereby also collecting tiny micro-fossils! Lots of gastropods, which is awesome because these are not as common as bivalves in these sediments. I namely found a complete yet puny Anomia ephippium, some very small Cerastoderma's, and also the ones attached. I would love to be able to bring these down to species level. So I am asking for your help! The Hague, Netherlands (from North Sea sediments) Eem Formation Eemian, Pleistocene; 120'000 y Thanks in advance, Max #1: Looks a little bit like Macoma balthica, but still a bit different... Very likely from the Tellinidae
  9. An afternoon on the Zandmotor

    Hi all, So on Tuesday afternoon, I was lucky enough to only have a half day of school. Seeing that the weather was nice, and that I had nothing else to do except go home, I decided to take the bus in the other direction, so to Kijkduin, in order to do some fossil hunting! I bought a sandwich and a chocolate bar at the Shell gas station, and set out on the beach. From the beach of Kijkduin I walked south, so towards the Zandmotor, while of course looking for fossils. View of the beach (mind that the sea is on the right side, on the left side it's just a small lagoon), with the haven of Rotterdam in the background. View of the beach with Kijkduin, and then Scheveningen, in the background. (Sorry for the blurriness...)
  10. Bivalve from the Zandmotor

    Hi all, Found this on the Zandmotor, Netherlands. Most likely from the Eem Formation, Eemian, Pleistocene; 120'000 years old. Though most of it is not there, enough of it is present (such as the umbo, and one full side (which allows us to see what the general shape and size would be)) to be identified. I am thinking that it may be Politiapes ruditapes, but that is a wild guess. What do you guys think it is? Thanks in advance! Max
  11. Ostrea, but what species?

    Hi all, What species of Ostrea do you think this is? My first thought was O. edulis, but I am wondering if it maybe isn't O. ventilabrum after all. In fact, how exactly can you differentiate the two different species? It was found on the Zandmotor, Netherlands. Most of the shells found here are (apart from modern) from the Eem Formation, Eemian, Pleistocene; 120'000 years old. And it would be this old if it is an O. edulis (which is a very common species). But maybe it is the rarer Eocene O. ventilabrum? I know that they do occur here too, but I never know how to tell them apart from O. edulis. Looking forward to hearing your answers! Max
  12. Rough cockle

    This is a nice rough cockle from the Zandmotor. Quite a common species.
  13. Sunset shell

    This very nice and rare sunset shell was found in an extension of the Rotterdam airport, known as the Maasvlakte 2. One of the favorite bivalves of my collection Another name of this species is Psammobia fervensis, but this name is no longer accepted.
  14. Surf clam

    A surf clam from the Zandmotor. These are incredibly common and pretty much litter the beach. Edit: I used to think that these were Mactra plistoneerlandica, aka Mactra stultorum plistoneerlandica, but didn't realize my mistake till recently.
  15. Anomia bivalve

    An Anomia ephippium, found in a sandbank in the city of The Hague. This is technically an ex-situ find, because the city itself isn't really a location for finding fossils. The real location would be the Zandmotor or the North Sea; the bivalve here was brought with sands imported from the North Sea. This species is recognizable from the three muscle scars, the pearly shine and the weird little white thing in the hinge area (3rd picture).
  16. Which formation?

    Hi all, I have a question for you guys... But I wouldn't be too surprised if you don't know the answer. Well, as a few of you know, my local hunting spot is the Zandmotor, a beach extension in the south of The Hague. You can find some of my finds here: Well, I find many bivalves and gastropods here, that are from the Eemian stage of the Pleistocene (130'000 - 115'000 years ago). Those shells (like the other fossils found on the Zandmotor) are from pits in the North Sea. Those pits are very rich in fossils, and when boats come to bring the sand onto the beach, the fossils are taken along. So the shells here are the same as those found in Maasvlakte 2 or in Hoek van Holland (two other fossil hotspots similar to the Zandmotor), just like on any Zuid-Holland beach. And I was wondering, does anyone know what formation these shells are from? I know that here in the collections, putting in "Pleistocene sediments" is good enough, but I would like to know if this is really the formation they are in. Thanks in advance for your help! Best regards, Max
  17. Carpet shell

    This is a nice fossil of the carpet shell. At first, this species, Venerupis senescens, was used as a guide fossil for the Eemian, the last interglacial age (so whenever paleontologists would find this species in a new location, they would know that they all the other fossils of the location are also Eemian). But this was later proven to be wrong.
  18. Scaphopod

    From the album @Max-fossils 's Zandmotor Finds

    A scaphopod, or tusk shell, fossil found on the Zandmotor. From the Eemian of the late Pleistocene (approx 120'000 years old). My first personal find of a scaphopod fossil!

    © Max Dereme

  19. Tusk shell

    A scaphopod, or tusk shell, fossil. Found on the Zandmotor beach (artificial beach extension). From the Eemian age of the late Pleistocene (approx 120'000 years old). My first personal scaphopod find
  20. Hi all, I found this fossil oyster (Ostrea edulis) two days ago on the Zandmotor (Netherlands). It's from the Eemian stage of the Pleistocene (120'000 years old). What made me pick up this oyster was its really weird feature. In the inside, this looks like a normal oyster: But when you turn it around, you can see that this oyster had a really rough time! Part of it is completely crushed, pushed in. And there are weird lines on it too. Now of course, the first idea that came onto my mind was that this oyster got crushed when it got pumped out of the sea and thrown onto the beach. But this wouldn't really work, because if you apply just a bit of force anywhere on a fossil oyster, it will easily break/snap. It won't get a new shape. And I have no clue what might have made those weird lines on it. Therefore, I ask your opinion: what do you think happened to this oyster for it to become crushed (but not break), and have those weird lines? Looking forward to some interesting theories! Max More photos:
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