nala Posted August 27, 2014 Author Share Posted August 27, 2014 Wow! ,thanks Troodon ! Link to comment Share on other sites More sharing options...
ThePrehistoricMaster Posted August 29, 2014 Share Posted August 29, 2014 Three ammonites and one belemnite. Link to comment Share on other sites More sharing options...
Ludwigia Posted August 29, 2014 Share Posted August 29, 2014 Three ammonites and one belemnite. I'm sure you like that polished Morrocan piece, but the round ones are Goniatites and the long one is an orthocone Nautilus. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
ThePrehistoricMaster Posted August 29, 2014 Share Posted August 29, 2014 I'm sure you like that polished Morrocan piece, but the round ones are Goniatites and the long one is an orthocone Nautilus. Wow, really! Thanks for correcting me, but are Goniatites not ammonites? Link to comment Share on other sites More sharing options...
Ludwigia Posted August 29, 2014 Share Posted August 29, 2014 Wow, really! Thanks for correcting me, but are Goniatites not ammonites? Weellll....in the layman's language just about everything that's flat and spiral is an ammonite, but there is a differentiation. There are also ceratites, which makes it even more complicated. Here's the taxonomic point of view: Class: Cephalopoda Class: Cephalopoda Class: Cephalopoda Subclass: Ammonoidea Subclass: Ammonoidea Subclass: Ammonoidea Order: Goniatida Order: Ceratitida Order: Ammonitida (true ammonites) Here's the basic line of descent: Goniatites came first in the Paleozoic, then ceratites in the early Mesozoic and finally ammonites also from the early Mesozoic until they died out at the end of the cretaceous period. There are of course exceptions, but that's it basically. 4 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
ThePrehistoricMaster Posted August 29, 2014 Share Posted August 29, 2014 (edited) Weellll....in the layman's language just about everything that's flat and spiral is an ammonite, but there is a differentiation. There are also ceratites, which makes it even more complicated. Here's the taxonomic point of view: Class: Cephalopoda Class: Cephalopoda Class: Cephalopoda Subclass: Ammonoidea Subclass: Ammonoidea Subclass: Ammonoidea Order: Goniatida Order: Ceratitida Order: Ammonitida (true ammonites) Here's the basic line of descent: Goniatites came first in the Paleozoic, then ceratites in the early Mesozoic and finally ammonites also from the early Mesozoic until they died out at the end of the cretaceous period. There are of course exceptions, but that's it basically. I guess you learn something every day. Thanks a lot! My mind is much clearer now. Edited August 29, 2014 by ThePrehistoricMaster Link to comment Share on other sites More sharing options...
Ludwigia Posted August 29, 2014 Share Posted August 29, 2014 You're welcome. There's a lot to learn, but it's a fascinating subject. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Wrangellian Posted September 4, 2014 Share Posted September 4, 2014 (edited) Not as prizeworthy as some of the others here as these taxa are about the most common things to be found at my usual local site (though one is still unidentified) but I like this piece (found recently) for the association of the three: Glyptostrobus frond and unID'd bivalve flipped over to find the Acila (and some isolated Uintacrinus platelets) Edited September 4, 2014 by Wrangellian 1 Link to comment Share on other sites More sharing options...
nala Posted September 5, 2014 Author Share Posted September 5, 2014 Very nice Eric! Miocene. Freestone Cove Sandstone Australia 1 Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 16, 2014 Share Posted September 16, 2014 Nice contributions, folks! Here is one of my cooler ones - All 4 species of fish found in the early Jurassic Hartford Basin, Shuttle Meadow Formation represented on one slab: Regards, 1 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
Fred Posted September 16, 2014 Share Posted September 16, 2014 Work in progress on an intimate association of two different trilobites: a Ceratarges and a Gerastos. I'll give an update when I finish the prep work. I'm curious as to whether both trilobites touch each other. They are are very close to one another, limiting the space for prepping them. 1 Paleo database, information and community Link to comment Share on other sites More sharing options...
Auspex Posted September 16, 2014 Share Posted September 16, 2014 Great White Shark, Odontocete, and seabird (Pismo Fm. Pliocene): Fish and shorebird (Green River Fm. Eocene): Three species of birds, and nematodes (Green River Fm. Eocene): 2 "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Fossildude19 Posted September 16, 2014 Share Posted September 16, 2014 NIce specimens, Chas! Thanks for posting them. Regards, Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
nala Posted September 16, 2014 Author Share Posted September 16, 2014 Stunning samples Tim,Fred and Auspex! A Miocene crab from Ukraine with a pecten: 2 Link to comment Share on other sites More sharing options...
Ludwigia Posted September 16, 2014 Share Posted September 16, 2014 Those are really nice ones, Chas! Wrangellian suggested I post this one here as well. It's a Scytalia turbinata sponge with a Neovermilia ampullacea tube worm and a Lacazella sp. brachiopod attached from the Campanian by Hannover, Germany. While I'm at it, here's another one from there. Sporadoscinia venosa with a Gonioteuthis sp. belemnite. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
nala Posted September 16, 2014 Author Share Posted September 16, 2014 Very nice Roger! Eupatagus cf. murrayensis and Pecten bivalve. Oligocene, Port Willunga Formation.Seaford, Adelaide distrist. South Australia. 1 Link to comment Share on other sites More sharing options...
Ludwigia Posted September 16, 2014 Share Posted September 16, 2014 (edited) A Miocene crab from Ukraine with a pecten Wow! I missed out on that one since I was busy posting. Great combo! Edited September 16, 2014 by Ludwigia Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Ludwigia Posted October 4, 2014 Share Posted October 4, 2014 Taramelliceras ?compsum ammonite with Lacunosella sp. brachiopod. Lower Kimmeridgian. Upper Danube Valley. 1 Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
nala Posted October 5, 2014 Author Share Posted October 5, 2014 Another Great Sample Roger! an insect with a gastropod,Oligocene of Southern France Link to comment Share on other sites More sharing options...
nala Posted October 12, 2014 Author Share Posted October 12, 2014 Cavenderichthys talbragarensis with plant Pentoxylon australica (fern). Jurassic. Merrygoen Ironstone, Purlawaugh Formation.Farr's Hill, Uarbry. New South Wales.Australia 1 Link to comment Share on other sites More sharing options...
dirtdauber Posted October 14, 2014 Share Posted October 14, 2014 Associated mosasaur vertebrae (10) and a baculite. Ripley Formation, Upper Cretaceous (Maastrichtian), Lowndes Co., AL 1 Link to comment Share on other sites More sharing options...
nala Posted October 14, 2014 Author Share Posted October 14, 2014 Stunning museum sample dirtdauber! Callovian green calcite ammonite with a gastropod from Montreuil Bellay 1 Link to comment Share on other sites More sharing options...
Bullsnake Posted November 9, 2014 Share Posted November 9, 2014 (edited) Brachiopod (Antiquitonia?)... ...with a gastropod in its belly. Edited November 9, 2014 by Bullsnake 1 Steve Link to comment Share on other sites More sharing options...
Plantguy Posted November 17, 2014 Share Posted November 17, 2014 Lots of interesting examples all. Here's a gastropod within a gastropod. I believe it's Heilprina sp. (maybe Heilprina caloosaensis) hosting a Crepidula sp. (probably C. plana) within its aperature. I've seen quite a number of the Crepidulas within various larger empty shells from the Plio-Pleistocene beds of Sarasota County, here in Florida. I've added a single small loose Crepidula valve to show you all a better view of it's slipper like form. Regards, Chris 1 Link to comment Share on other sites More sharing options...
fossil26 Posted November 17, 2014 Share Posted November 17, 2014 One of my favorites: White whale Quarry, Sharktooth Hill area, Bakersfield - hooked tooth mako, bone, manganese nodule, and megalodon tooth. All nicely arranged by mother nature. Lisa 2 Link to comment Share on other sites More sharing options...
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