2005-09-06

    Dientes de chimpancé en medio de la sabana

    Sally McBrearty desentierra algunos dientes de chimpancé donde nadie esperaba encontrarlos.© Andrew Hill
    Más noticias de la semana pasada. Un equipo de paleontólogos ha descubierto el primer fósil de pánido. ¿Que no sabéis qué es un pánido? Si nuestra especie pertenece al género Homo, nuestros fósiles son homínidos. El chimpancé pertenece al genero Pan, así que el término lógico para sus restos fósiles será pánidos, ¿no? Pues conformaos con esa explicación porque la nomenclatura oficial no la tengo tan clara.

    Entrando en la noticia el artículo sería lógico que pensarais: ¿cómo ha tardado tanto en aparecer un fósil de chimpancé, habiendo como hay tantos fósiles de otras muchas especies, homínidos incluídos? Pues porque no bicho que muere fosiliza y eso depende mucho del ambiente donde tenga a bien morirse el pobre. Hasta la fecha la hipótesis venía a ser como sigue: los chimpancés y gorilas viven en selvas húmedas en el Oeste de África, así que en esas condiciones la fosilización es muy difícil. Hipótesis que parece seguir en pié ya que el fósil hallado ha aparecido en el valle del Rift, África oriental, donde suelen aparecer todos los fósiles interesantes de homínidos. Los restos proceden de hace 500.000 años, así que son bastante recientes, y en aquella época el valle era una sabana poco más o menos como la actual.



    Así que gracias a 3 dientes sabemos que al menos un chimpancé vivía en las sabanas (lo que viene a significar que muchos más vivían con él, debido a la escasa probabiliad de fosilización de cada resto individual), cosa que ni se sospechaba. Un análisis más detallado de la morfología de los dientes permitirá discernir si la especie es la misma que alguna de las que sobreviven en la actualidad (bonobo P. paniscus o chimpancé P. troglodytes). A ver si con suerte éste es el primero de una larga serie de afortunados hallazgos que nos permitan arrojar luz sobre el pasado evolutivo de nuestros primos hermanos.


    Izquierda, a, KNM-TH 45519. De izquierda a derecha: vistas labial, lingual, mesial, distal e incisa. b, KNM-TH 45521. Mismo orden que en a. c, Ampliación del borde incisivo de KNM-TH 45519 (izquierda) y KNM-TH 45521 (derecha), mostrando la extremada delgadez del esmalte característica de los modernos chimpancés. d, Vistas labial y lingual de KNM-TH 45519 y KNM-TH 45521.
    Arriba, KNM-TH 45520. De izquierda a derecha: vistas occlusiva, labial, lingual, mesial y distal. Nótese la delgadez del esmalete en la cara mesial rota en el paracono.

Referencias (TrackBacks)

URL de trackback de esta historia http://evolucionarios.blogalia.com//trackbacks/32779

Comentarios

1
De: Holbach Fecha: 2005-09-07 13:06

"El chimpancé pertenece al genero Pan, así que el término lógico para sus restos fósiles será pánidos, ¿no?"

Los pánidos serían los miembros de la familia zoológica de los chimpancés, del mismo modo que los homínidos son los miembros de nuestra familia. F. J. Ayala y C. J. Cela Conde dividen la superfamilia de los hominoideos en cinco familias: los homínidos, los pánidos, los gorílidos, los póngidos (orangután) y los hilobátidos (gibones).

Algunos autores incluyen a los chimpancés y a los gorilas en la familia de los homínidos, colocándolos dentro de la subfamilia de los paninos (nosotros y nuestros antepasados de los últimos 7 millones de años estaríamos en la subfamilia de los homininos).

En fin, que estos detalles de la taxonomía aún no están claros.



2
De: BioMaxi Fecha: 2005-09-07 13:21

Otros en cambio llaman Panidae al clado Gorilla+Pan, así que efectivamente el tema de la clasificación no está claro ;-)



3
De: Imperator Fecha: 2005-09-07 13:26

¿Es seguro que la zona dónde se encontraron los dientes era una sabana hace 500.000 años? Los climas y ambientes pueden cambiar con bastante celeridad... ¿Se ha hecho palinología, o estudios paleobotánicos, paleoambientales...?. Y perdona, pero es que no he podido leer el artículo.



4
De: BioMaxi Fecha: 2005-09-07 13:30

Anda, han pasado la noticia a contenido de pago, ¡qué cerdos! Si alguien quiere el artículo de Nature que lo pida, que eso sí lo tengo.



5
De: BioMaxi Fecha: 2005-09-07 13:38

"The similarity in the array of fossils encountered in K3 and K3' sediments suggests that Middle Pleistocene Pan and Homo lived, or at least died, in broadly similar environmental settings. Taken together, the evidence suggests a locally wooded habitat on the shore of an alternately fresh and saline-alkaline lake, fluctuating lake levels, ephemeral nearshore fluvial channels, a nearby freshwater spring, and a semi-arid climatic regime."

Sounds savannah like to me, pero no soy experto.



6
De: Imperator Fecha: 2005-09-07 14:42

Savana, si, pero "locally wooded habitat" mmmmh... no se, no se...



7
De: Cavebear Fecha: 2005-09-07 17:19

Imperator:

muy buena tu observación. Voy a intentar estudiarme el artículo y tal, a ver si me entero...



8
De: BioMaxi Fecha: 2005-09-08 13:44

Imperator, pues el mismo ecosistema donde se encuentran la mayoría de los restos homínidos. Igual es que eso tampoco es sabana ;-)



9
De: Imperator Fecha: 2005-09-08 14:11

O una sabana no tan sabana: algún trocito de bosque por aquí, un trocito más desértico allá... Pero claro, esto es especulación.



10
De: jesus Fecha: 2005-10-06 21:36

yorfra como esta nos conectamos estoi en el infocentro



11
De: evian Fecha: 2006-03-24 21:38

fascinante descubrimiento que permite teorizar sobre si el Este de África no solo eran sabanas sino un conglomerado de ambientes abiertos y boscosos en los cuales interactuaban homínidos y panidos



12
De: Maria Elena Cuellar J. Fecha: 2008-06-10 20:52

Quisiera saber qué significado tiene o de donde se deriva la palabra Pan del género de los chinpancés y bonobos.



13
De: Michigan criminal appeals attorneys Fecha: 2018-07-19 15:52

I admire what you have done here. I like the part where you say you are doing this to give back but I would assume by all the comments that this is working for you as well.



14
De: check here Fecha: 2018-07-21 16:07

This article gives the light in which we can observe the reality. This is very nice one and gives indepth information. Thanks for this nice article.



15
De: Michigan Auto Accident Lawyer Fecha: 2018-07-23 21:11

I was surfing net and fortunately came across this site and found very interesting stuff here. Its really fun to read. I enjoyed a lot. Thanks for sharing this wonderful information.



16
De: picenza Fecha: 2018-07-25 12:06

The website is looking bit flashy and it catches the visitors eyes. Design is pretty simple and a good user friendly interface.



17
De: hokinet.com Fecha: 2018-07-26 11:25

I would like to thank you for the efforts you have made in writing this article. I am hoping the same best work from you in the future as well. Thanks...



18
De: www.millstmarket.com Fecha: 2018-07-28 13:42

I appreciate everything you have added to my knowledge base.Admiring the time and effort you put into your blog and detailed information you offer.Thanks.



19
De: www.rotaryzone2324.org Fecha: 2018-07-29 10:46

This is a great post. I like this topic.This site has lots of advantage.I found many interesting things from this site. It helps me in many ways.Thanks for posting this again.



20
De: lessons Fecha: 2018-07-30 11:12

I really thank you for the valuable info on this great subject and look forward to more great posts. Thanks a lot for enjoying this beauty article with me. I am appreciating it very much! Looking forward to another great article. Good luck to the author! All the best!



21
De: westcoast420express.ca Fecha: 2018-07-31 12:42

useful information on topics that plenty are interested on for this wonderful post.Admiring the time and effort you put into your b!..



22
De: מנעולן בקריות Fecha: 2018-08-05 15:26

Please let me know if you’re looking for a article writer for your site. You have some really great posts and I feel I would be a good asset. If you ever want to take some of the load off, I’d absolutely love to write some material for your blog in exchange for a link back to mine. Please send me an email if interested. Thank you!



23
De: brownstone law firm Fecha: 2018-08-06 10:31

You have a good point here!I totally agree with what you have said!!Thanks for sharing your views...hope more people will read this article!!!



24
De: thealmostdone.com Fecha: 2018-08-12 15:29

I'm glad I found this web site, I couldn't find any knowledge on this matter prior to.Also operate a site and if you are ever interested in doing some visitor writing for me if possible feel free to let me know, i am always look for people to check out my web site.



25
De: SEO Fecha: 2018-08-16 13:29

The information you have posted is very useful. The sites you have referred was good. Thanks for sharing...



26
De: www.mobilecontract.org Fecha: 2018-08-26 11:44

I found this is an informative and interesting post so i think so it is very useful and knowledgeable. I would like to thank you for the efforts you have made in writing this article.



27
De: www.piesandquiches.com Fecha: 2018-08-27 10:50

Excellent information on your blog, thank you for taking the time to share with us. Amazing insight you have on this, it's nice to find a website that details so much information about different artists.



28
De: Gas Fitting Service Fecha: 2018-08-29 11:38

I am no expert, but I believe you just made an excellent point. You certainly fully understand what you are speaking about, and I can truly get behind that.



29
De: torontohomescanada.com Fecha: 2018-08-30 10:21

i read a lot of stuff and i found that the way of writing to clearifing that exactly want to say was very good so i am impressed and ilike to come again in future..



30
De: leilao de imoveis Fecha: 2018-09-01 10:38

I can see that you are an expert at your field! I am launching a website soon, and your information will be very useful for me.. Thanks for all your help and wishing you all the success in your business.



31
De: https://www.facebook.com/thoitrangdolotxuatkhauchipi Fecha: 2018-09-03 12:17

I can see that you are an expert at your field! I am launching a website soon, and your information will be very useful for me.. Thanks for all your help and wishing you all the success in your business.



32
De: forexbonus Fecha: 2018-09-06 16:15

This is really a nice and informative, containing all information and also has a great impact on the new technology. Thanks for sharing it



33
De: Vaping Fecha: 2018-09-15 17:04

No doubt this is an excellent post I got a lot of knowledge after reading good luck. Theme of blog is excellent there is almost everything to read, Brilliant post.



34
De: inground pools Fecha: 2018-10-01 18:48

i read a lot of stuff and i found that the way of writing to clearifing that exactly want to say was very good so i am impressed and ilike to come again in future..



35
De: third eye symbol Fecha: 2018-10-09 18:39

Your website is really cool and this is a great inspiring article.



36
De: Kapoor Fecha: 2018-10-10 08:10

Very nice article.
Keep posting such a good post!!.



37
De: Telhadista Fecha: 2018-10-10 10:52

I love the way you write and share your niche! Very interesting and different! Keep it coming!



38
De: http://ec-terminal-mieten.com Fecha: 2018-10-11 18:27

Great post I would like to thank you for the efforts you have made in writing this interesting and knowledgeable article.



39
De: manutenção predial Fecha: 2018-10-13 11:15

This is the type of information I’ve long been trying to find. Thank you for writing this information.



40
De: www.snowtimes.de Fecha: 2018-10-14 09:16

I admit, I have not been on this web page in a long time... however it was another joy to see It is such an important topic and ignored by so many, even professionals. professionals. I thank you to help making people more aware of possible issues.



41
De: mit snowtimes in den schnee Fecha: 2018-10-14 09:39

I have not any word to appreciate this post.....Really i am impressed from this post....the person who create this post it was a great human..thanks for shared this with us.



42
De: pos4less immer billig Fecha: 2018-10-15 09:54

Thanks for your post. I’ve been thinking about writing a very comparable post over the last couple of weeks, I’ll probably keep it short and sweet and link to this instead if thats cool. Thanks.



43
De: pos4less.de Fecha: 2018-10-15 10:21

Great content material and great layout. Your website deserves all of the positive feedback it’s been getting.



44
De: best matcha tea Fecha: 2018-10-16 16:05

Interesting topic for a blog. I have been searching the Internet for fun and came upon your website. Fabulous post. Thanks a ton for sharing your knowledge! It is great to see that some people still put in an effort into managing their websites. I'll be sure to check back again real soon.



45
De: pioneerseo Fecha: 2018-10-16 16:53

New technology consumer financing for small businesses. Consumer financing for small businesses backed by alternative financing for bad credit customers. VIP Financing Solutions Reviews



46
De: surveillance system reviews Fecha: 2018-10-22 09:07

Nice knowledge gaining article. This post is really the best on this valuable topic.



47
De: Inflatable Event Professionals Fecha: 2018-10-23 09:31

Your article has piqued a lot of positive interest. I can see why since you have done such a good job of making it interesting.



48
De: gaming rig monitors Fecha: 2018-10-24 08:43

You completed a few fine points there. I did a search on the subject and found nearly all persons will go along with with your blog.



49
De: Poster Holder Fecha: 2018-10-27 20:15

I got what you mean , thanks for posting .Woh I am happy to find this website through google.



50
De: Kajal Thakkar Fecha: 2018-10-28 04:32

A very informational and good post. I like the way you have chosen the topic and write about it. Keep it up.

http://www.kajalthakkar.com/


Kajal Thakkar


Pune Escorts


Pune Call Girls


Pune Independent Escorts


Pune VIP Escorts


Pune Elite Escorts


Escorts in Pune


Pune Escorts Services



51
De: Taniya kapoor Fecha: 2018-10-28 04:38

A very motivating and inspiring article. What a way to bring up a topic and write about it. Great!! Good Job!!

http://www.taniyakapoor.in/


Mumbai Escorts


Mumbai Call Girls


Mumbai Independent Escorts


Mumbai Independent Escorts


Mumbai Elite Escorts


Mumbai VIP Escorts


Escorts in Mumbai


Mumbai Escorts Services




52
De: Sweety Patel Fecha: 2018-10-28 04:42

This is a kind of Article i was searching. Really a good topic to write upon and very excellent way of writing it. A great job was done.

http://www.sweetypatel.com/


Mumbai Escorts


Mumbai Call Girls


Mumbai Independent Escorts


Mumbai Independent Escorts


Mumbai Elite Escorts


Mumbai VIP Escorts


Escorts in Mumbai


Mumbai Escorts Services




53
De: Anika Kaur Fecha: 2018-10-28 04:47

This topic and post is very interesting. What a nice way of writing it and explaing it. Great post. Keep it up!!.


http://www.anikakaur.com/


Mumbai Escorts


Mumbai Call Girls


Mumbai Independent Escorts


Mumbai Independent Escorts


Mumbai Elite Escorts


Mumbai VIP Escorts


Escorts in Mumbai


Mumbai Escorts Services




54
De: SEO Agentur Ruhrgebiet Fecha: 2018-10-30 15:38

I am very much pleased with the contents you have mentioned. I wanted to thank you for this great article.



55
De: Review and Bonus Fecha: 2018-10-31 15:39

Hi! Thanks for the great information you have provided! You have touched on crucuial points!



56
De: hdmi modulator Fecha: 2018-11-01 07:38

I know your expertise on this. I must say we should have an online discussion on this. Writing only comments will close the discussion straight away! And will restrict the benefits from this information.



57
De: Taniya kapoor Fecha: 2018-11-01 08:18

One of the best written artilce and very incredible way of put forword the content. Great post!!.

http://www.taniyakapoor.in/


Mumbai Escorts


Mumbai Call Girls


Mumbai Independent Escorts


Mumbai Independent Escorts


Mumbai Elite Escorts


Mumbai VIP Escorts


Escorts in Mumbai


Mumbai Escorts Services




58
De: Umzugskartons Fecha: 2018-11-03 08:18

Superbly written article, if only all bloggers offered the same content as you, the internet would be a far better place..
Umzugskartons



59
De: Foxy Pets Fecha: 2018-11-04 16:08

Superbly written article, if only all bloggers offered the same content as you, the internet would be a far better place..



60
De: MW Select Fecha: 2018-11-05 17:06

it was a wonderful chance to visit this kind of site and I am happy to know. thank you so much for giving us a chance to have this opportunity..



61
De: Hewitt Health Fecha: 2018-11-05 17:48

I felt very happy while reading this site. This was really very informative site for me. I really liked it. This was really a cordial post. Thanks a lot!.



Nombre
Correo-e
URL
Dirección IP: 54.162.166.76 (9496fb8397)
Comentario
¿Cuánto es: diez mil + uno?

Inicio > Historias > Dientes de chimpancé en medio de la sabana