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Found 48 results

  1. Norian Hardground with ammonoids.JPG

    From the album Triassic In Situ Pictures

    Triassic/Norian hardground with visible ammonoids. Genera are: Arcestes, Cladiscites, Rhacophyllites, Megaphyllites, Placites.
  2. Upper Norian ammonoids.JPG

    From the album Triassic In Situ Pictures

    Block with small upper Norian ammonoid cross sections
  3. Psiloceras naumanni - Kopie.JPG

    From the album Triassic In Situ Pictures

    Psiloceras naumanni, from the Hettangian of the Alps
  4. https://www.paleowire.com/the-moroccan-rhino-like-mammal-new-species-reported-this-week/
  5. Ladinian hashplate

    From the album alpine triassic Ammonoids

    Hashplate of Ladinian age. The two smooth shelled ammonoids are inner cores of Gymnites cf. arthaberi(size= 3cm). The ammonoid top left is a Arpadites sp. A fragment of Protrachyceras cf. archelaus (darker brown spiny shell part down right) is evidence for Ladinian/Longobardian time(archelaus zone).
  6. Started my Season

    Yesterday I started my fossil season 2018. It was the first real warm spring weekend this year. What a good feeling to get out again on such a beautyful day. Fortune was along with me and so I found several Triassic ammonoids. The small ones in the block are of upper Carnian(Tuvalian) age. The black Arcestes are of Norian age. Much snow is still on the higher mountains so it will last longer to start collecting at higher locations this year. regards Andreas
  7. Are These New Mexican Fossil Eggs ?

    Found these in a cluster, in New Mexico in an arroyo (dried river bed) in an area where many other fossils have been found. It's also a volcanic area. Manly ammonoids have been found. Can you help me identify these? Are they of any value?
  8. From the album alpine triassic Ammonoids

    Size is 40cm x 18cm. Austrotrachyceras austriacum MOJS. (ribbed with nodes, 4cm diameter) on the left lower half, Joannites sp., Arcestes gaytani, Megaphyllites sp., Mojsvarites agenor(on top), small Sirenites sp. and several orthocone Nautiloids and bivalves.
  9. From the album alpine triassic Ammonoids

    Small slab (15cm x 11cm) showing a fauna from the Triassic/Carnian/ lower Julian zone of Trachyceras aon. The biggest black Syringoceras(Nautilus) measures about 4cm. Ammonoids on the slab are Celtites cf. steindachneri MOJS.(ribbed), Sphingites sp., Lobites elipticus, Sirenotrachyceras sp., Monophyllites sp., Arcestes sp., Asklepioceras sp.
  10. Hypocladiscites subtornatus.jpg

    From the album alpine triassic Ammonoids

    Hypocladiscites subtornatus (MOJS), 10cm diameter, together with Mojsvarites agenor(left side), Joannites sp. and orthocone Atractites sp. Triassic/lower Carnian aonoides zone. Hallstatt limestone of Austria.
  11. Trachysagenites eximius.jpg

    From the album alpine triassic Ammonoids

    Small slab with Trachysagenites cf. eximius MOJS.(Ammonoid with nodes, 2.5cm diameter) Associated with Arcestes sp., Megaphyllites sp., Paratropites sp., "Sandlingites" pilari and Isculites sp. Probably lower Tuvalian Dilleri Zone.
  12. Tuvalian.jpg

    From the album alpine triassic Ammonoids

    This part of a Triassic/Tuvalian ammonoid lense show probably the lower ammonoid zone(Dilleri Zone) of the Upper Carnian/Tuvalian stage. The upper half of the picture show a few Trachysagenites erninceus(ammonoids with stroger nodes) and a Tropites sp. core upon left. The lower part show Spirogmoceras sp., Traskites sp. and Paratropites cf. multecostatus with Isculites heimi(flat variant)
  13. Season End

    That was probably my last trip this year. I decided to do a prospecting round. Crawl on the ground for six hours. The result was meager. Got some new insights but no good finds. Two Carnian Joannites sp. ammonoids were my find of the day. The Norian ammonoids of this layer I left in field. Nevertheless, it was a nice day. I met several of these yellow-black little guys. Now it is raining and weather forecast reports snow down to 600 meters altitude for tomorrow. regards Andreas
  14. Upper Triassic, Carnian ammonoids.JPG

    From the album alpine triassic Ammonoids

    Block with Syringoceras sp., Monophyllites simonyi, Arcestes sp., Megaphyllites sp. and several orthocone Nautiloids
  15. Hi fossils friends, Here are some of my last preparations : Lower Triassic Flemingites lidacensis (Welter 1922) - 19 cm
  16. Hi fossils friends, here is a little taphonomic accumulation plate with many Olenekian (lower Triassic) Ammonoids. It comes from the Vikinghøgda Formation - Sassendalen group (Sassendalen valley - Spitsbergen island - Svalbard archipelago - Norway) Most of the Ammonoids are Svalbardiceras spitzbergensis (Freblod, 1930). Associated on the plate is an unidentified orthoconic Nautiloid (never seen this in the associated litterature), a bivalve and a partial Ammonoid from the Hedenstroemiidae family (at the top-left). Size of the plate is 11,5 X 9,5 cm. I prepared it with my Dremel engraver in about 8 hours.
  17. Triassic ammonoid prep

    Because of the bad weather of the last two weeks I’ve started the prep work of a Upper Triassic/Carnian ammonoid block found on my first trip this year. Status of prep after about 12 hours.
  18. Fossil Hunting Buddy Needed - NM

    Hey everyone, I'm writing this out here because I'm trying to find a buddy or a partner to go hunting with. I've been in New Mexico for just over a year now and there are some hunting grounds I'd like to explore that would probably be quite a bit safer (and more fun) with a partner. I've been lurking on these forums since I moved out here from Fl. I'm a 24 year old grad student at UNM studying engineering so I don't have any formal geology education but I like to read and learn about it! Not really experienced at hunting, just a guy that enjoys being in the outdoors and wants to learn more. Currently looking into Galisteo Dam as another user on the site has shown. Reading the paper in the attachments and checking out geologic maps. If anyone is interested let me know. - Ken Ammonoid Biostratigraphy of the Upper Cretaceous Carlile Shale at Galisteo Dam, Santa Fe County, New Mexico.pdf
  19. Season start

    Today I started my collecting season. It was a successful day I found several Tuvalian Tropites and Jovites(greenish matrix) alas all a little incomplete. But that doesn't matter because I did it more for stratigraphy. At least I found near this location a Julian Block with ammonoids of the austriacum Zone.(reddish matrix) But it was a very hard work. Two broken chisels (of three) make me nervous on half time because my car was far away.
  20. Hello! I'm back after a long posting absence and I would like to share my recent finds with you (December was a very "fossiliferous" month for me). My new fantastic collecting spot is located near Vila Nova de Ourém. However I can't tell you precisely the age of the layers (even after a very exaustive research).That's why I would like to ask for specific paleobiological/stratigraphic documentation or information about this region. I collected fossils from two layers and I noticed the fauna was quite different, so I suppose they are not the same age. As I don't know their age, I will call them "Layer1" and "Layer2" (wich was stratigraphically above "Layer1"). Layer1 (Jurassic or Cretaceous) In this layer I found lots of oysters, the most abundant fossil. I also found: -Crocodylomorph tooth (???)
  21. Here are two plates from Guizhou province. They should be Protrachyceras sp. ammonites from late Triassic. First one: Second front: Second back:
  22. A mini fossil museum exists within the lobby of the Park Hyatt in Chicago, just off Michigan Avenue. I'm guessing not too many people know about it unless they're guests at the hotel. It's a wonderful display of very large Moroccan trilobites, ammonites and various other fossils from around the world. It is free, of course, because it's in the lobby and a nice diversion if you're ever in the area. Another added bonus is it's open 24 hours.
  23. After Washing

    Yesterday I washed my finds found on my last Friday trip and from a trip in spring. The weather in June was very rainy this year. So this trip on friday was the third one this year. I was lucky to find a new Lower Carnian (Julian) and Upper Carnian(Tuvalian) spot on this trip. At my trip in spring this year a wonderfull big Ladinian Protrachyceras archelaus was found. Because I was the whole day in good mood for prospecting I took no pics from the locations and landscape. Today I am a little bit sorry about this because it was a beautiful mountain day truly worth to share with others.
  24. Winterwork Finish

    Today I finished prepwork done during wintertime. Three bigger multiplates with Ladinian ammonoids and some smaller ones of Ladinian, Carnian and Norian age. Now the field season 2016 can start.
  25. Disparities in the General differences between Nautiloids and Ammonoids Thanks to the amount of money I had to spend recently to keep my two cars running and my Lady bravely taking care of her ill Mother in Ohio, I am unable to do any field work, at least till I get paid again. I am trying to come up with things to keep busy. I started doing some additional research on my favorite fossils Nautiloids. One of the main problems that occur in some specimen found in the ages between the Devonian and the Cretaceous is how to tell the difference between Nautiloids and Ammonoids since they sometimes have the same general shape. The three most commonly used features to tell them apart, (fig. 1), are septal curvature (Fig.2), simple vs. complex septa, (the wall in between the chambers), (Fig. 3), and the location of the Siphuncle, (the tube that goes through the septa and connects the chambers), (Figs. 4 & 5). I have two nautiloid genus from the lower Mississippian that not only are from the same age but can be found in the same outcrop that do not conform to these general differences. The first nautiloid is Subclymenia in the family Trigonoceratidae. Subclymenia does not have the typical simple suture that nautiloids have owing to the name clymenia (Devonian Ammonoid), (Figs. 6, 7 & 8). Later nautiloids in the Mesozoic and Cenozoic also do not have a simple suture. However, the siphuncle in Subcylmenia is very prominently shown in the middle of the septal wall as is the typical nautiloid (fig. 9). The other nautiloid, genus Solenochellus, that displays a difference also includes these difference with a number of genus under the Super family, Aipocerataceae. The genus Solenochellus does display the typical simple suture of nautiloids but the siphuncle is found on the outer ventral portion of the shell as found in Ammonoids (Fig. 10, 11, 12 & 13) . Well this took care of the majority of this week, now I have to figure out what to do next week.
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