Published May 4, 2012 | Version v1
Figure Open

Fig. 9 in Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm

Description

Fig. 9. Functional morphology of a hook or claw in a logarithmic spiral shape, penetrating a surface. A, B. Thrusting action, pole proximal. The angle φ at the contact point and the direction of the force vector (arrow) are constant during penetration. C, D. Pulling action, pole distal.

Notes

Published as part of Hammer, Øyvind, Hryniewicz, Krzysztof, Hurum, Jørn H., Høyberget, Magne, Knutsen, Espen M. & Nakrem, Hans A., 2013, Large onychites (cephalopod hooks) from the Upper Jurassic of the Boreal Realm, pp. 827-835 in Acta Palaeontologica Polonica 58 (4) on page 833, DOI: 10.4202/app.2012.0020, http://zenodo.org/record/13278681

Files

figure.png

Files (109.1 kB)

Name Size Download all
md5:cc08797db475de73b5e7cf18cd752cbd
54.8 kB Preview Download
md5:f6ad94ea1ffe9ee79c9233b647cfd66d
54.3 kB Download

Linked records

Additional details

Related works

Is part of
Journal article: 10.4202/app.2012.0020 (DOI)
Journal article: urn:lsid:plazi.org:pub:C5782165FFACFF9BFFA0FFC6AC798C48 (LSID)
Journal article: http://publication.plazi.org/id/C5782165FFACFF9BFFA0FFC6AC798C48 (URL)
Journal article: https://zenodo.org/record/13278681 (URL)