Herb Posted July 29, 2012 Share Posted July 29, 2012 Here's some Red algae , U.Ordovician from Winchester, KY; and the Stromatoporiod is same age from Frankfort, KY. "Absence of evidence is not evidence of absence"_ Carl Sagen No trees were killed in this posting......however, many innocent electrons were diverted from where they originally intended to go. " I think, therefore I collect fossils." _ Me "When you have eliminated the impossible, whatever remains, however improbable, must be the truth."__S. Holmes "can't we all just get along?" Jack Nicholson from Mars Attacks Link to comment Share on other sites More sharing options...
Wrangellian Posted March 28, 2013 Share Posted March 28, 2013 Here's another specimen with these blob-like things that I think are algae, from the Chemainus site (2nd pic brightened - sorry for my minimal photo skills): piece is ~16cm long Link to comment Share on other sites More sharing options...
JimB88 Posted March 28, 2013 Share Posted March 28, 2013 Heres some fucoid or Brown Algae these are Mississippian examples from the Bangor Limestone. Link to comment Share on other sites More sharing options...
AJ Plai Posted March 28, 2013 Share Posted March 28, 2013 I think they are algae, though I have no idea what specie or genus they are: If anyone could tell and ID them then that would be great Link to comment Share on other sites More sharing options...
piranha Posted March 28, 2013 Share Posted March 28, 2013 Since I posted all of my best algae specimens in this thread I would be remiss not to add this one as well. It is a magnificent specimen of Cystoseirites partschii. This example showcases the articulated apical and basal regions and miraculously preserves some of the reproductive structures of conceptacle and receptacle morphology. The apical portion of the plant, which is shed annually, also preserves 3D pneumatocysts (air vessicles) that are present during fertile periods to provide flotation for optimal photosynthetic exchange. Cystoseirites (=Cystoseira) partschiiLate Oligocene - Southern Caucasus Link to comment Share on other sites More sharing options...
Missourian Posted May 12, 2013 Author Share Posted May 12, 2013 I picked up a couple interesting pieces today. They are probably a combination of Archaeolithophyllum sp. and an encrusting form. Vertical cross section: Close-up of two 'mounds' in the center: Eroded surface: Paola Limestone, Pennsylvanian Kansas City, Kansas Edit: The multi-layered encrusting form is likely Archaeolithophyllum lamellosum. Context is critical. Link to comment Share on other sites More sharing options...
Wrangellian Posted May 12, 2013 Share Posted May 12, 2013 Interesting... Almost like a stromatolite! Link to comment Share on other sites More sharing options...
Missourian Posted May 14, 2013 Author Share Posted May 14, 2013 On 5/11/2013 at 10:55 PM, Wrangellian said: Interesting... Almost like a stromatolite! They may be. Older publications referred to 'Cryptozoon' being present in some the limestones of the area. Context is critical. Link to comment Share on other sites More sharing options...
pleecan Posted September 14, 2013 Share Posted September 14, 2013 Prismostylus (Red Algae) aka Tetradium dana from Late Ordovician. I was a small group invited to explore a new fossil location... Specimen was found by my friend Alf Newnham who did not want the fossil ... I took it home and had it id by a good friend from ROM. Link to comment Share on other sites More sharing options...
piranha Posted September 14, 2013 Share Posted September 14, 2013 Prismostylus (Red Algae) aka Tetradium dana from Late Ordovician. I was a small group invited to explore a new fossil location... Specimen was found by my friend Alf Newnham who did not want the fossil ... I took it home and had it id by a good friend from ROM. Hi Peter, One day I hope to add a nice rhodophyte to my collection. Congrats on the great find! Link to comment Share on other sites More sharing options...
pleecan Posted September 14, 2013 Share Posted September 14, 2013 Thank you Scott! I have been spending most of my time of Face Book admin of +12 paleo type groups... Link to comment Share on other sites More sharing options...
Missourian Posted September 30, 2013 Author Share Posted September 30, 2013 I've shown these before, but I've since figured out how to take better photos.... Probable red algae Quindaro Shale, Pennsylvanian Miami County, Kansas I haven't seen anything like these anywhere else, including in the literature. I figure they are a form of red algae, similar to Mesophyllum or Peyssonnelia that can be found in modern reefs: I don't know if these Pennsylvanian forms are rare or just the once instance of phylloid algae preserved in shale. They very well could be the common Archaeolithophyllum, which are normally thoroughly locked in limestone. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted September 30, 2013 Author Share Posted September 30, 2013 Smaller thalli on the same slab.... Under the microscope: Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted September 30, 2013 Author Share Posted September 30, 2013 Another slab.... Bifurcation: I have no idea what the small tubes could be. Context is critical. Link to comment Share on other sites More sharing options...
Missourian Posted September 30, 2013 Author Share Posted September 30, 2013 Some smoother thalli.... The cylinder with the raised pores is the sponge Coelocladia. Context is critical. Link to comment Share on other sites More sharing options...
Ancient Currents Posted September 30, 2013 Share Posted September 30, 2013 Cobble of what I think is Mary Ellen Jasper found on a beach in Michigan, Link to comment Share on other sites More sharing options...
Ridgehiker Posted September 30, 2013 Share Posted September 30, 2013 (edited) Lots of interesting specimens...many I would have overlooked. Learning from this thread. Not always a lot of consensus on algae. We were in The Las Vegas area and went for a hike in an area that is now a housing division. We found these algae colonies...brought them into the lab and had three older palaeontologists, all Doctor Emeritus, debating over them. Their ages added up to about 225 years. About 175 years experience in Palaeozoic rocks. They had me slicing and polishing .... despite all the experience the final conclusion was algae 'incertae sedis'. What was also neat was that some previous natives had been using these colonies to make tools. Found lots if choppers and flakes in the area. Anyways, polished up a few slices and made cabochons. Exterior and interior. Edited September 30, 2013 by Ridgehiker Link to comment Share on other sites More sharing options...
hrguy54 Posted January 24, 2014 Share Posted January 24, 2014 Red Alga from Flemmingsburg, KY Link to comment Share on other sites More sharing options...
Diplotomodon Posted February 8, 2014 Share Posted February 8, 2014 Here's some green alga from the Marjum Formation in the Wheeler Shale, Utah: Beyond "green alga" I'm not sure exactly what kind it is, though I did a little digging on the Internet and I think it might be Yuknessia. What a wonderful menagerie! Who would believe that such as register lay buried in the strata? To open the leaves, to unroll the papyrus, has been an intensely interesting though difficult work, having all the excitement and marvelous development of a romance. And yet the volume is only partly read. Many a new page I fancy will yet be opened. -- Edward Hitchcock, 1858 Formerly known on the forum as Crimsonraptor @Diplotomodon on Twitter Link to comment Share on other sites More sharing options...
Triceratops Posted July 21, 2014 Share Posted July 21, 2014 There is a beach near me which is littered with fossil lumps of algae. I will try and get some pictures up. -Lyall Link to comment Share on other sites More sharing options...
Missourian Posted August 29, 2014 Author Share Posted August 29, 2014 I may have shown this already, but here goes anyway.... Archaeolithophyllum lamellosum Paola Limestone Wyandotte County, Kansas These can be distinguished from A. missouriensis (and other phylloid algae) by their layered habit. The thalli stand out in the heavily weathered limestone: Close up of 'cabbage patch': The thalli appeared to be attached to a shell or another algal thallus (calcite-filled object on the left). Context is critical. Link to comment Share on other sites More sharing options...
MeRocks Posted September 7, 2014 Share Posted September 7, 2014 This is what I find . Don't have a name for it but I like to hunt for them and find quiet a few. Link to comment Share on other sites More sharing options...
Missourian Posted June 19, 2017 Author Share Posted June 19, 2017 'Seaweed salad'.... Phylloid algae bindstone Frisbie Limestone, Pennsylvanian Miami County, Kansas The genera are undetermined. Possibilities include the green algae Eugonophyllum, Ivanovia and Anchicodium, and the red alga Archaeolithophyllum: The thalli are stacked into several layers. Sponges can be seen sandwiched in between. Base of slab. Several thalli, in growth position, are well exposed here: Note the large fenestellid bryozoan that was trapped beneath the plants as they grew. 1 Context is critical. Link to comment Share on other sites More sharing options...
fifbrindacier Posted August 24, 2021 Share Posted August 24, 2021 (edited) Coraline algae colonized by pink foraminifers Homotremae rubrum. Edited August 24, 2021 by fifbrindacier 2 "On ne voit bien que par le coeur, l'essentiel est invisible pour les yeux." (Antoine de Saint-Exupéry) "We only well see with the heart, the essential is invisible for the eyes." In memory of Doren Link to comment Share on other sites More sharing options...
Coco Posted August 25, 2021 Share Posted August 25, 2021 Hi, @fifbrindacierif you have a UV lamp, you should check if the foraminifers are fluorescent. Where is it from ? Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now