I have posted some pictures of a fossil I found in the boulder clay at
Mappleton, south of the MOD ramp. It certainly looks like vertebrate
bone material and has a number of quite significant features. It is
roundish in section, about 9"  long but obviously part of something
much bigger. It is slightly curved along the long axis, the top side
has a pronounced crest or ridge  that terminates about half way along
(seen in section in one of the photos). The underside is slightly
concave with two small "mounds" in the middle - but these are not very
clear in the pictures. I presume these may represent muscle attachment
points. It is certainly fossil - very heavy - not recent material -it
is solid rock. It also appears to have been hollow originally (and
quite thin walled) and is now infilled with hard matrix that contains
some shelly material.

It was eroding out of the boulder clay at beach level and within a few
feet where some ammonite fragments which I recognise as from Speeton.
In my experience material tends to stay together in the boulder clay
so I would guess that this fossil came from Speeton also. I believe
Iguanodon remains have been found at Speeton hence my speculation of
that genus. As far as I can tell it doesn't resemble any bones from a
marine reptile. As to which bone, I have no idea - possibly rib? ,
humerus?  (could the crest be the deltopectoral ridge?) or pelvic
structure?. I am pretty sure the the fossil has enough characteristics
for it to be diagnosed. I guess it needs looking at by a professional.

Anyone got any ideas?

Hello,
Sadly, I have heard that Professor John Neale died on Friday 20th
January (2006).
John worked as a lecturer at Hull University, specialising in the
Speeton Clay and ostracods, until the closure of the Geology
Department in the late 1980s.
Regards, Mike

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Saturday 8th October - joint afternoon lecture meeting with Yorkshire
Geological Society - looking at the work of G W Lamplugh and the
progress made in local geology in the last 100 years. Speakers - John
Catt, Mike Horne, Paul Hildreth, Rory Mortimore and Peter Rawson.

Sunday 9th October - 'In the Footsteps of Lamplugh' - field meeting-
led by Mike Horne, joint meeting with YGS, to Flamborough and Speeton.
Booking required - e-mail me or 'phone 01482 346784

Hi All,
I too met Jack once. He was very helpful and knew the area incredibly
well. He managed pull out a couple of giant Belemnites for my lad,
most grateful.
I once found a piece of giant Ammonite at Speeton which is about 10
inches across, though not as big as the one you have it sits well on
my shelf.
When I have time I shall post some pics of the fossils I found, there
are quiet a few I have no idea what they are.
Regards
Mick

--- In speeton@yahoogroups.com, "david301455" <david.mulliner1@b...>
wrote:
> Hi I was out at Speeton cliffs and met a most interesting gentleman,
> Jack Dole, see photo`s, Jack spent most of the day with me. hence the
> photo of the giant ammonite, I also found a smaller one along with
> some large belemnites, not bad for a novice; thanks Jack.

there will be a Yorkshire Geol Soc field meeting to Speeton and
Flamborough, following the indoor lecture meeting in October.

the YGS meeting in Hull in October will be about G W Lamplugh - more
details later

went back this weekend and the good stratified exposure had gone, but
there were some mashed-up (slumped) bits to be seen. That's Speeton
for you!
cheers, Mike

exposure of A Beds beyond Speeton Beck was looking quite good a couple
of weeks ago.
rgds, Mike

Hello,

The wery large fallen blocks are I think in the C6 C7 C8 range of
beds. Depending on how much as been washed away since I last visited.
I certainly recognised some C7 beds and collected samples from there.

The fault just to the south of these brings down C3 beds. There is
often a mudflow coming down the gap where the fault line is. The C3
beds look very much like the C8 and C9 ones on the other side of the
fault and unless you know you can mistake them.

The B beds start beyone the C3 cliff face in the muddy slumpy area.

As a Hull graduate you should have reading and probably borrowing
rights to the Library. Though some of the geology books were 'removed'
a couple of years ago and Hull Geological Society has some of them in
a private library for members.

regards, Mike.


--- In speeton@yahoogroups.com, "Nigel Hutchings"
<nigel.hutchings@e...> wrote:
> The wood was in a slipped block at the southerly end of Middle Cliff
> along with some Hibolites - so C beds? Are the slipped blocks on the
> beach from the C beds? - Am I right in thinking that the faulted section
> marks the B/C bed boundary?. If this is the case I may need to review
> some of my location data - particularly the large belemnite
> ?Aulacoteuthis? which I suspect is then C beds, not B beds. BTW I'm
> still not convinced about the ID of this belemnite (see previous
> postings and images). I have subsequently collected a textbook
> Aulacoteuthis ernsti definitely from the C beds and my larger specimen
> looks rather different to this, notably in its size. Its proportions are
> rather like Oxyteuthis except for the pronounced rostral groove. Have
> you any specimens identified as Oxyteuthis which have a rostral groove?
>
>
>
> I really need to get hold of the definitive papers on Speeton. I wonder
> as an ex Hull University postgraduate I have reading rights in the
> University Library?
>
>
>
>
>
> -----Original Message-----
> From: Mike Horne [mailto:mike@h...]
> Sent: 12 July 2004 22:12
> To: speeton@yahoogroups.com
> Subject: [Friends of Speeton Clay] Re: Pictures of Speeton miscellany
>
>
>
> --- In speeton@yahoogroups.com, "Nigel Hutchings"
> <nigel.hutchings@e...> wrote:
> > The crinoid is pentamerous in cross section - so I'm certain about
> that.
> > I had wondered about the wood inclusions - I'll do some research on
> wood
> > borers. Have you ever seen any in the literature? Thanks for the
> > suggestion.
> >
>
>
> REPLY - there are some pictures on page 398 of Shrock and Twenhofel -
> but the best place to look would be the "The Treatise".
>
> Which beds did you find them in?
>
> rgds, Mike
>
>
>
>
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--- In speeton@yahoogroups.com, "Nigel Hutchings"
<nigel.hutchings@e...> wrote:
> The crinoid is pentamerous in cross section - so I'm certain about
that.
> I had wondered about the wood inclusions - I'll do some research on
wood
> borers. Have you ever seen any in the literature? Thanks for the
> suggestion.
>


REPLY - there are some pictures on page 398 of Shrock and Twenhofel -
but the best place to look would be the "The Treatise".

Which beds did you find them in?

rgds, Mike

Nice pictures.

I know it is hard to tell from photographs - but - are you sure that
it is a crinoid and not an uncoiling ammonite; could the things in the
wood be boring bivalves?

I agree with you about the small scale stuff being fascinating - but
have now found that some of my microfossils are starting to get pyrite
rot.

rgds, Mike


--- In speeton@yahoogroups.com, "gnomon9992000" <nigel.hutchings@e...>
wrote:
> I have added some pictures of some Speeton bits and pieces.
>
> Particularly interesting are the pyritic inclusions in the fossil
> wood. I am no Botanist but I think they must be axillary buds -
> although they do look rather like beetle cases!
>
> Also there is a 2cm piece of crinoid stem and a pyritic phragmocone.
>
> I find looking at Speeton "in the small" very productive. Taking away
> consolidated blocks of clay and then examining it microscopically at
> home has yielded some interesting stuff. I will post further pictures.
>
> BTW - the link in my last post needed the trailing bracket removing -
> it should have been:
>
> http://userpage.fu-berlin.de/%7Epalaeont/palbio3/17.pdf

I have added some pictures of some Speeton bits and pieces.

Particularly interesting are the pyritic inclusions in the fossil
wood. I am no Botanist but I think they must be axillary buds -
although they do look rather like beetle cases!

Also there is a 2cm piece of crinoid stem and a pyritic phragmocone.

I find looking at Speeton "in the small" very productive. Taking away
consolidated blocks of clay and then examining it microscopically at
home has yielded some interesting stuff. I will post further pictures.

BTW - the link in my last post needed the trailing bracket removing -
it should have been:

http://userpage.fu-berlin.de/%7Epalaeont/palbio3/17.pdf

Hello,
I am involved in organising Yorkshire Geology Month for May 2005. If
anyone fancies leading a trip to Speeton please contatc me.
best wishes, Mike

hello,
I found half a icthyosaur vertebra on the beach today, probably from
the C Beds.
rgds, Mike

Further to my previous posts regarding the fine Oxyteuthis speicmen I
found at Speeton. I now think that it is more likely to be
Aulacoteuthis, either A.ernsti or A.speetonensis - most likely
A.ernsti - both of which are said to occur at Speeton.
(http://userpage.fu-berlin.de/%7Epalaeont/palbio3/17.pdf).

The most notable feature is the groove - diagnostic of Aulacoteuthis
but absent in Oxyteuthis. However although the size and position of
the groove is similar to A.ermsti, the gross morphology of the guard
is similar to Oxyteuthis. The specimen is also much larger than the
figured specimens. The above paper gives an interesting account of
speciation in Aulacoteuthis (in which genus the groove appeared then
became reduced) leading to the ungrooved Oxyteuthis.)

Perhaps my specimen is a transistional form in the above sequence?
Probably needs an expert opinion.

I had a quick visit to Speeton this weekend, there seems to have been
a lot more mudflows, more cliff falls on Middle Cliff and I suspect
that the Speeton Shell Bed exposure will not be there for many more years.
Mike

Very nice pictures, how did you take them?
Good preservation on the specimens. Have you ever found Hibolites
phragmacones?
rgds, Mike
--- In speeton@yahoogroups.com, "gnomon9992000" <nigel.hutchings@e...>
wrote:
> Put some pictures in the Photos folder of an exceptional specimen of
> what I think is Oxyteuthis from a fallen block of the B beds. The
> specimen has a well preserved articulated phragmocone. Additionally
> there were anterior strctures preserved which I suspect was the pro-
> ostracum. Unfortunately this was not collectable. Notice the
> posterior groove on the rostrum (better on photo 2)- is this
> diagnostic of this species?. The specimen was not fractured.
> Interesting is the erosion of the alveolar region - yet the
> phragmocone was relatively undamaged and preserved in situ.

Put some pictures in the Photos folder of an exceptional specimen of
what I think is Oxyteuthis from a fallen block of the B beds. The
specimen has a well preserved articulated phragmocone. Additionally
there were anterior strctures preserved which I suspect was the pro-
ostracum. Unfortunately this was not collectable. Notice the
posterior groove on the rostrum (better on photo 2)- is this
diagnostic of this species?. The specimen was not fractured.
Interesting is the erosion of the alveolar region - yet the
phragmocone was relatively undamaged and preserved in situ.

exposures very muddy at present

the big fall at the far end of middle cliff looks very interesting at
present.

Hello, if you collect fossils or rocks at Speeton would you please
help English Nature by completing a  short questionaire ?
Please e-mail Helen.Keeble@... requesting a copy
before 9th August 2003.
Thanks, Mike,

Hi
Put a picture in the photos folder.  Large uncoiled ammonite found in
a hard clay nodule at speeton, directly in front of the second to
recent fall (summer 2003).  I saw the upper brown end just poking out
of the block. We cracked the block and got it out in a number of
pieces.  I was very pleased with the find and it was my first
uncoiled ammonite find :-)  I don't know its latin name, every third
undulation (don't know correct name) is a lot larger than the ones in
between.  Anyway thought you might like to see it as I promised to
send it to you ages ago but didn't get round to photgraphing it.
Andy

If you are interested in the Speeton Clay then please leave a message
here for others to read, indicating any specialised knowledge you
have. Please remember that other people will read you messages, so do
not reveal any personal details that you do not wish to make public.
cheers, Mike

For those who don't know - the Speeton Clay  is a series of marine
grey clays of Early Cretaceous age that is only exposed at Speeton,
East Yorkshire UK. The site is a SSSI - Site of Special Scientific
Interest - because of its geoloay. The exposure is subject to slipping
and erosion - and can be dangerous when wet. It contains some unusual
fossils - and careful stratigraphic collecting is scientifically very
rewarding.

hello,
Welcome to the "Friends of the Speeton Clay Group website".
Membership is open to anyone interested in the geology and fossils of
the Speeton Clay, or other deposits of a similar Early Cretaceous age.
Here you can register your particluar interests, ask questions, and
post pictures and information that might help others.
There are not many geologists specialising in the Speeton Clay - so
this site provides a good opportunity to keep in touch with others and
share our experience. So do join (it is free) and tell your friedns
about it.
cheers, Mike Horne, Hull UK.