Beak

Hajar

Haliphron Atlanticus
Registered
Joined
Mar 7, 2009
Messages
540
#1
Here is a Triassic Germanonautilus beak from Wollmersheim, Germany (found on ebay). The upper jaw Rhyncholithes is 20 mm long and the lower jaw Conchorhynchus is 14 mm long. This paper by the prolific Christian Klug explains: http://app.pan.pl/archive/published/app46/app46-043.pdf
 

Attachments

Hajar

Haliphron Atlanticus
Registered
Joined
Mar 7, 2009
Messages
540
#3
There's a new paper (Klug, C., Schweigert, G., Fuchs, D. & Dietl, G. 2009: First record of a belemnite preserved with beaks, arms and ink sac from the Nusplingen Lithographic Limestone (Kimmeridgian, SW Germany). Lethaia, 10.1111) showing beaks of Late Jurassic cephalopods.

Here's their Figure 7 showing beaks of a nautilid, an ammonite, a vampyropod coleoid and a belemnite. Very nice.
 

Attachments

Hajar

Haliphron Atlanticus
Registered
Joined
Mar 7, 2009
Messages
540
#11
Thanks! Are these the beaks mentioned by Phil Eyden here?

I just found this by Tanabe and co-workers. That's a really large upper jaw they describe (97 mm) and they write, ""This new taxon would have been as large as the modern giant squid Architeuthis, which commonly exceeds .. 5 m in body length. Our study postulates that studies of jaws are important to reconstruct the phylogeny of the Coleoidea.
 

POD-L

O. bimaculoides
Registered
Joined
May 29, 2005
Messages
65
Location
Comox, B.C.
#14
Sorry my pictures were of Nanaimoteuthis jeletzyi from "Late Cretaceous Octobrachiate Coleoid Lower Jaws from the North Pacific Regions" Tanabe et al 2008 JPaleont.,82(2)
:)
 

POD-L

O. bimaculoides
Registered
Joined
May 29, 2005
Messages
65
Location
Comox, B.C.
#15
Sorry my pictures were of Nanaimoteuthis jeletzyi from "Late Cretaceous Octobrachiate Coleoids Lower Jaws from the North Pacific Regions" Tanabe et al 2008 JPaleont.,82(2)
:)
 

Hajar

Haliphron Atlanticus
Registered
Joined
Mar 7, 2009
Messages
540
#16
Nice to see the 3D preservation as opposed to the crushed state of the German and Lebanese material.
 

POD-L

O. bimaculoides
Registered
Joined
May 29, 2005
Messages
65
Location
Comox, B.C.
#19

Members online

Forum statistics

Threads
19,278
Messages
201,424
Members
8,210
Latest member
branane

Monty Awards

TONMOCON IV (2011): Terri
TONMOCON V (2013): Jean
TONMOCON VI (2015): Taollan
TONMOCON VII (2018): ekocak

About the Monty Awards
Top