Search the Community
Showing results for tags 'yorkshire'.
-
From the album: Bobby’s ammonites
a beautiful pebble from Holderness Yorkshire Uk. Arnioceras Sp -
From the album: Jurassic stuff uk
Dactylioceras ammonite with iridescence on the body chamber, yorkshire Uk.- 1 comment
-
- 1
-
-
- dactylioceras ammonite
- irridescence.
- (and 1 more)
-
From the album: Jurassic stuff uk
Lytoceras, port mulgrave, yorkshire Uk.-
- 1
-
-
- lytoceras
- port mulgrave
- (and 1 more)
-
An unusually complete specimen although crowns are well known from this location. It has a very short stem consisting of only six or seven columnals, all of which bear cirri. Once thought to be an early comatulid, it is now thought to belong to a separate lineage of nearly stemless pentacrinitids (Hess 2014). References: Simms, M.J. 1989. British Lower Jurassic Crinoids. Monograph of the Palaeontographical Society, London:1-103, pls.1-15 (No. 581) Hess, H. 2014 Origin and radiation of the comatulids (Crinoidea) in the Jurassic. Swiss J Palaeontol 133, 23–34 Hess 2014 Origin…comatulids This was Invertebrate/Plant Fossil of the Month March 2015
-
Fossil of the Month, January 2015. Prepping details here: Jan 2015 finds of the month A partial, extremely rare, many armed starfish, the genus was assigned to a new family Plumasteridae in 2011: A. S. Gale. 2011. Asteroidea (Echinodermata) from the Oxfordian (Late Jurassic) of Savigna, Départment du Jura, France. Swiss Journal of Palaeontology 130:69-89 This is from the same area and formation as the holotype of its species. The distinctive ossicles are common as disarticulated elements in sieved samples from Pliensbachian to Oxfordian. Excerpt from the above paper: Family Plumasteridae nov. Diagnosis: Multiarmed (12–22 arms) asteroids with broad adambulacrals which occupy the entire actinal sur- face of the arm and V distally: adambulacrals concavo- convex, 5–8 specialised interlocking articulation ridges and grooves articulate with ridges on adjacent adambulacral (modified ada2-3); abactinal ossicles with numerous lateral projections and embayments, and each carries a central large convex boss with which long, glassy, ridged spines articulate. Type genus: Plumaster Wright 1863, is the only genus included. It ranges from the Pliensbachian to the Oxfordian. Discussion: The Plumasteridae is established for the distinctive multiarmed genus Plumaster. This is distinguished from other multiarmed spinulosans such as solas- terids by the unusual boss-like spine articulations of the abactinal ossicles, and the highly modified adambulacral ossicles, which articulate by means of ridges and grooves.
-
As often the case with brittle stars and other starfish, this shows the oral surface and is on the underside of the sandstone bed. The bed below it is a shale and the base of the sandstone represents a sudden influx of sediment which preserved the brittle star nearly intact. This was Invertebrate/Plant Fossil of the Month Sept 2014 and Fossil of the Year 2014.
- 9 comments
-
- 2
-
-
- brittle star
- lias
- (and 3 more)
-
The phragmocone is partly in a nodule, the rostrum protruding from it - quite rare in these beds. It has the remains of an epirostrum. Assigned to Megateuthis in: Doyle, P. 1990-92 The British Toacian (Lower Jurassic) Belemnites. Monograph of the Palaeontographical Society, London: Part 2, 50-79, pls.18-28 (Publ. No. 587, vol. 145 Contentious taxonomy down the years - diagnostic features include the pair of dorsolateral apical grooves. Similar specimens of Acrocoelites sp. are supposed to have an additional ventral groove but this is variable ...
- 2 comments
-
- 2
-
-
- acrocoelites
- belemnite
- (and 5 more)
-
An extreme morphology, much of the length consisting of an epirostrum - an overgrowth and extension of the normal rostrum. This may have been aragonitic and partially organic and is frequently crushed. Described under Youngibelus tubularis: Doyle, P. 1990-92 The British Toacian (Lower Jurassic) Belemnites. Monograph of the Palaeontographical Society, London: Part 2, 50-79, pls.18-28 (Publ. No. 587, vol. 145) Cuspiteuthis Abel 1916 was re-established as senior synonym of Youngibelus Riegraf in: Riegraf, W, Janssen, N.M.M & Schmitt-Riegraf, C. 1998. Cephalopoda dibranchiata fossiles (Coleoidea)II. -(In:) Westphal, F. (ed.) Fossilium Catalogus. 1: Animalia, Pars 135: 1-519, Leiden (Backhuys).
-
- 1
-
-
- alum shales
- cuspiteuthis
- (and 2 more)
-
Complete pyritized shell.
-
This species gives its name to the zone and subzone at the bottom of the lower Toarcian. This very fine-ribbed specimen of the genus Dactylioceras is for me a fine representative for the legend of St. Hilda, the Abbess at the monastery in Whitby ca. 650 A.D. She wanted to build a convent there as well, but the grounds were infested with snakes, so she prayed so intensively that all of the snakes were turned into stone. Since then they are known as snakestones. I found this sample pretty well as is with a head that reminds us of a snake. Literature: Howarth, M.K. (1973): The Stratigraphy and Ammonite Fauna of the Upper Liassic Grey Shales of the Yorkshire Coast. Bulletin of the British Museum (Natural History) Geology. Vol.24 No.4
-
From the album: Marine reptiles
Ichthyosaur vertebra from Whitby, Yorkshire, U.K. -
Here's a specimen I found last August on the Yorkshire Coast, near Whitby (UK) and have recently got prepared. I didn't prepare it myself, but sent it off and have just got it back. What do you think? The specimen is a Zugodactylites braunianus, and it is from the Upper Lias of North Yorkshire. It's about 185 MYA.
-
Hi, i was hoping someone could help me identify whether the following photos are a concretion or a fossil. The piece was found poking out of a lump of clay fallen from the cliff at Robin Hoods Bay, North Yorkshire, UK. It looks like one end is broken off and there is an outer layer which is a mid grey colour with brown patches and the inner is a much darker grey to almost black. The dimensions are around 9" by 4" by 3". Any help much appreciated, thanks Simon
-
I'll like to check out are these Arnioceras ammonites pyritized? They are from Yorkshire UK. I want to know in your opinion, are these ammonites pyritized or non-pyritized? Link to the picture: https://www.facebook.com/photo.php?fbid=10201976908256821&set=a.3256541024913.135604.1608741583&type=3&theater
-
I've just come back from a trip to Yorkshire where I managed to do a little fossil hunting and was lucky enough to find this ammonite. The problem is though is that generally the preservation in the area wasn't great and this one is clearly covered in a mudstone/ shale type of rock. However I think it might be worth trying to remove the surrounding rock because the small bit which I can see seems to have preserved fairly well. However I don't know the best way to remove it, see i'm not very comfortable with chiseling it away because I'm fairly new to this so would probably end up ruining it! I've been told that it may work if I was to put it into the oven to warm it up and then put it into cold water which could 'shock' the fossil to break along lines of weakness but I'm not sure if it would work or not. I've tried to post a picture of the fossil here but I'm not sure if its worked so if not here's a link: http://s1069.photobucket.com/user/zozzy-zebra/media/IMG_0003_zps69eb4cbf.jpg.html Any suggestions of how I can remove my ammonite would be greatly appreciated. Thanks
-
I recently got round to prepping a few ammonites from my collection - I collected them during the summer (August) at the Yorkshire Coast (UK), but have only just got round to prepping them. I thought I'd share them with you. I'm not an experienced prepper, so I was practising on these ammonites. I am pleased with how they turned out, although I still have a little bit of work to finish some of them off. If anyone else wants to share their Yorkshire ammonites that would be great; once we get a thread going I'll post some of my other specimens. All of these ammonites are from the Lias of the Yorkshire Coast, UK, and were prepped out of hard limestone nodules. I used the Chicago Pneumatic from start to finish on all of theses ammonites, and then I gave them a light coat of beeswax. Hildoceras bifrons Peronoceras turriculatum Peronoceras perarmatum Pseudolioceras ?boulbiense
