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Re: [dinosaur] Paper Pterodactylus: Critiques?



Thatâs really cute, Grant! Kids will love it. 

I might recommend a larger head and a crescent shaped wing. Even though 
Pterodactylus was not a particularly large-headed pterosaur, the skull length 
is still about double the shoulder to hip distance: 
https://urldefense.proofpoint.com/v2/url?u=http-3A__1.bp.blogspot.com_-2D4fmJsANk-2DL8_VhfNqvaXgtI_AAAAAAAAB3Y_p5UUbiOh1m8_s1600_P.-252Bantiquus-252Bholotype.jpg&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=QZzl2t_V8I4TnperHmPd25idBcttm5MRLCDJ1Sk3B1s&s=AuHgV9rOh7K1rExDQX4gbl6QklwgjqtNEd3tNlSQFBs&e=

Pterosaur wings were probably more crescent shaped in flight, on account of 
tension requirements and forward sweep to align the center of lift with the 
center of mass: 
https://urldefense.proofpoint.com/v2/url?u=http-3A__rspb.royalsocietypublishing.org_content_278_1713_1881&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=QZzl2t_V8I4TnperHmPd25idBcttm5MRLCDJ1Sk3B1s&s=opYYOy4Iy0SmWdfBKgc_X5a3CwuqbAmmO6Z1FYLs95A&e=
 (includes a nice figure of what this wing shape looks like). The wing tip was 
flexible, so it would bend into a recurve, which furthers the crescent shape.

Anyway, I hope thatâs of some help!

Cheers,

âMike Habib


Michael Habib, MS, PhD
Assistant Professor, Integrative Anatomical Sciences
Keck School of Medicine of USC
University of Southern California
Bishop Research Building; Room 403
1333 San Pablo Street, Los Angeles 90089-9112

Research Associate, Dinosaur Institute
Natural History Museum of Los Angeles County
900 Exposition Blvd, Los Angeles, CA 90007

biologyinmotion@gmail.com
(443) 280-0181



> On Apr 19, 2018, at 8:29 AM, Bruce Woollatt <brucewoollatt@hotmail.com> wrote:
> 
> Hi Grant;
> 
> What about incorporating the hindlimbs into the wing, so that from above the 
> wing piece would look moe like the silhouettes shown here: 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__longrichpaleolab.com_blog_&d=DwIFaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=QZzl2t_V8I4TnperHmPd25idBcttm5MRLCDJ1Sk3B1s&s=aB1giF2xE-oo7tsT7tbi4tgCR8mpgF7cJUJtlp5Rsyw&e=
> 
> News â Longrich Paleo Lab
> longrichpaleolab.com
> Pterosaur survival up to the K-Pg Boundary Our latest publication Longrich et 
> al. 2018 shows a high diversity of pterosaurs up to their final extinction 
> during the K-Pg mass extinction (66 MYA).
> 
> Bruce
> 
> From: dinosaur-l-request@usc.edu <dinosaur-l-request@usc.edu> on behalf of 
> gahrdng@mta.ca <gahrdng@mta.ca>
> Sent: April 14, 2018 9:35 PM
> To: dinosaur-l@usc.edu
> Subject: [dinosaur] Paper Pterodactylus: Critiques?
>  
> Hi everybody,
> 
> I have a side job creating children's educational activities for a  
> blog. For one of these, I've made a simple paper model of Pterodactylus.
> 
> You can see two pictures of it here:
> https://urldefense.proofpoint.com/v2/url?u=https-3A__pbs.twimg.com_media_DaqgnVNVwAE8BlQ.jpg&d=DwIBaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=ccsZViwpsa6gumNEtCwv0QsF6Z45SJdEfjK0OEIC5cU&s=-EiaNFgenCs_NDYaN4f1WTvSA_4p56Oq6pwD1PmF1Nc&e=
> https://urldefense.proofpoint.com/v2/url?u=https-3A__pbs.twimg.com_media_Daqgof5VMAACzVS.jpg&d=DwIBaQ&c=clK7kQUTWtAVEOVIgvi0NU5BOUHhpN0H8p7CSfnc_gI&r=Ry_mO4IFaUmGof_Yl9MyZgecRCKHn5g4z1CYJgFW9SI&m=ccsZViwpsa6gumNEtCwv0QsF6Z45SJdEfjK0OEIC5cU&s=kR8sPBRKf_br0AljDhEcT-WNsNceFduTE5Tma8y3uuI&e=
> 
> I think it's pretty good, but I would love to hear any critiques, and  
> whether anything stands out as being wrong with it. Proportions,  
> shapes, positions of body parts, anything like that. I don't want to  
> put out something inaccurate.
> 
> (I know it's only got one wing. It will have two when it's finished.)
> 
> Thanks so much!
> 
> -Grant Harding