Jump to content

December 2019 - Finds of the Month Entries


digit

Recommended Posts

Nice fish! Learned something too as well--always a good way to start the day. :)

 

Seems that Priscacara serrata and Priscacara liops once shared a genus but now the smaller of the two has been moved to a new genus and is now Cockerelites liops. A quick internet check to see what was going on here led me back to a great source of fossil information. You may have hear of it? TFF :P

 

 

The Wikipedia article mentions that the two species have different types of tooth plates and maybe that was the reason for pulling these apart into two genera. I don't have a copy of Lance Grande's 2013 book The Lost World of Fossil Lake. Perhaps @Sagebrush Steve can update us to the reasoning for the split if he has a copy? Someone (not me ;)) needs to update the Wikipedia page to reflect the new taxonomy. A crowd-sourced encyclopedia is a great idea but, as with any collection of information, constant editorial attention is required.

 

https://en.wikipedia.org/wiki/Priscacara

 

Cheers.

 

-Ken

  • I found this Informative 1
Link to comment
Share on other sites

Thanks Ken @digit

 

I have a copy of that book and I read the reasoning (there were a handful of differences) but I don’t have it in front of me. I’m knee deep in some continuing education for my energy auditor certification today. :wacko: I have to complete 8 additional hours before 12/31! There’s nothing like waiting until the last minute...:DOH:

 

I’ll reply with the points later unless someone beats me to it. 

Link to comment
Share on other sites

The so-called "Priscacara liops" was placed in the genus Cockerellites by Jordan (1923) because of the number of differences between this species and Priscacara serrata. Unlike Priscacara serrata, Cockerellites liops has a larger number of dorsal fin rays, a larger number of anal fin rays, a less strongly serrated preopercular margin, and a thinner pelvic spine (see Grande 1984, table II.7). In addition, it is a smaller fish, seldom exceeding 120 millimeters (5 inches) in length. Although l did not recognize this genus in my 1984 volume, l could find no unambiguous characteristics indicating close relationship to Priscacara serrata, nor did Whitlock in his analysis of the FBM percoids together with extant species. Therefore, l resurrect the name Cockerellites Iiops (Cope, 1877) here for this species discussed below.

 

text from:

 

Grande, L. 2013. The Lost World of Fossil Lake: Snapshots From Deep Time. University of Chicago Press, 425 pp.

  • I found this Informative 5

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

6 hours ago, piranha said:

The so-called "Priscacara liops" was placed in the genus Cockerellites by Jordan (1923) because of the number of differences between this species and Priscacara serrata. Unlike Priscacara serrata, Cockerellites liops has a larger number of dorsal fin rays, a larger number of anal fin rays, a less strongly serrated preopercular margin, and a thinner pelvic spine (see Grande 1984, table II.7). In addition, it is a smaller fish, seldom exceeding 120 millimeters (5 inches) in length. Although l did not recognize this genus in my 1984 volume, l could find no unambiguous characteristics indicating close relationship to Priscacara serrata, nor did Whitlock in his analysis of the FBM percoids together with extant species. Therefore, l resurrect the name Cockerellites Iiops (Cope, 1877) here for this species discussed below.

 

text from:

 

Grande, L. 2013. The Lost World of Fossil Lake: Snapshots From Deep Time. University of Chicago Press, 425 pp.

 

And here is a bit more about it from Grande’s book.  Sorry, I’m too lazy to retype it like @piranha did, I just took a photo.

 

150DD5A5-2B90-4F93-B572-019E166802EC.jpeg.59c57ddd8e615c9dd9d8ebaaed3abae0.jpeg

  • I found this Informative 1
Link to comment
Share on other sites

4 hours ago, piranha said:

 

 

scan + ocr + copy + paste = et voilà! :P

copy-smiley.gif?1292867575


Even simpler:

scan > paste > go have some wine > :default_faint:

  • I found this Informative 5
Link to comment
Share on other sites

On 12/22/2019 at 9:23 PM, Ptychodus04 said:

Cockerelites liops

Before prep:

573F0015-03B8-41F3-AD97-9C808C044781.thumb.jpeg.b4a6dc7dc611f29a395f81c3a28bb9ba.jpeg  After prep:  D5F16817-8EB7-4EB5-B795-EFD55C967C06.thumb.jpeg.2625546a62a0adfc24873810832f2700.jpeg     5F8FB361-A041-48A7-A5A7-7CFD751854A9.thumb.jpeg.4b805bb17009056ee7733ac7e374f2d3.jpeg    close up of caudal fin preservation.    2E89F100-ECF7-4BF6-B473-43A1A3F95A17.thumb.jpeg.2a5223627a118058e0200a5ea9d15be4.jpeg

How did you prep it? Air abrader or microjack or pin vise, or magic?

Link to comment
Share on other sites

3 hours ago, Scylla said:

How did you prep it? Air abrader or microjack or pin vise, or magic?

A combination of micro-abrasive, micro jack, and magic (aka good luck and patience).

  • I found this Informative 2
Link to comment
Share on other sites

28 minutes ago, Ptychodus04 said:

A combination of micro-abrasive, micro jack, and magic (aka good luck and patience).

We know you better than that!

You waved your wand and used the

Preparus Preptronum spell.

Dorensigbadges.JPG       

Link to comment
Share on other sites

My second entry to the vertebrate category.

First time I found associated shark vertebras in Portugal.

 

Date of Discovery: December 21, 2019

Scientific and/or Common: Shark vertebras

Geologic Age or Geologic Formation: Miocene | Burdigalian

Province, or Region Found: Sesimbra, Portugal

 

IMG_0866.thumb.JPG.9dc960715f963d28fa57e6ae00a6285c.JPGIMG_0868.thumb.JPG.be5e11e55fecdac4d35ee73ddd67badb.JPG

  • I found this Informative 8
Link to comment
Share on other sites

I feel compelled to add to this month's entries, given the significance of the find and the limited chance of ever finding anything quite so spectacular again. So I'd like to include this associated left manus of a Palorchestes azael, described in more detail in this thread:

http://www.thefossilforum.com/index.php?/topic/100844-australias-answer-to-a-giant-ground-sloth/&tab=comments#comment-1119793

 

Date of Discovery: 9 December 2019

Scientific and/or Common Name: Palorchestes sp. (azael?)

Geologic Age or Geologic Formation: Pleistocene

State, Province, or Region Found: Queensland

Photos of Find:

1577449121135_2121519055_31a8e146.jpg.2d14961ad05787c0f3b0227aa4d2d95f.jpg

1577447926487_3681487232_31a8e146.jpg.1322e482a95c15c9550430b2400d0fac.jpg

 

  • I found this Informative 11

"Let us therefore follow after the things which make for peace, and things wherewith one may edify another."
-Romans 14:19

Link to comment
Share on other sites

Lycopsid branches

Upper Carboniferous

Pennine Lower Coal Measures formation

Wakefield, West Yorkshire, UK

Found Friday, 27th of December 2019

 

D6245DAE-0B85-44C5-ABC6-FAA255ED680F.jpeg

7525C916-EF29-484A-B268-AB88C871FF01.jpeg

7A930C9A-65A8-431D-97D9-B10B07E68A3F.jpeg

9E5420AC-0ED5-4D39-A4A9-872FC4C309DB.jpeg

  • I found this Informative 11
Link to comment
Share on other sites

8 hours ago, Ptychodus04 said:

Nice find Skye @Jesuslover340!!!

 

 

Why do you guys get all the cool marsupials down there? :D

You guys get the placentals, we get the marsupials-seems fair enough :P

"Let us therefore follow after the things which make for peace, and things wherewith one may edify another."
-Romans 14:19

Link to comment
Share on other sites

found 6 days ago miniture fossil coconut (Cocos zeylandica) 40mm long, a small extinct species found only in New Zealand, from Coopers Beach, Mangonui (Doubtless Bay), Northland dating from the early Miocene 16-24myo

 

Collected: December 23rd, 2019

Miniature fossil coconut (Cocos zeylandica)

Early Miocene 16-24myo

Coopers Beach, Mangonui (Doubtless Bay)

Northland, New Zealand

 

80261784_10215646292963638_6897010057607643136_n.jpg?_nc_cat=103&_nc_ohc=RuKrvKmU24cAQkKSd6k8VMeb0DZKKUhT7fWSV6efNnMqc_8_w0nltm2kg&_nc_ht=scontent.fakl7-1.fna&oh=ea703a94fe13ab5abc10cc9463b90c77&oe=5EA0EB9B

80291188_10215646293523652_8406617785714606080_n.jpg?_nc_cat=105&_nc_ohc=kzK1CT6shvMAQl4dGHXTcQl0ez7CnIZ_IQCYk_Z2H3XzzCm5flyEyloiA&_nc_ht=scontent.fakl7-1.fna&oh=e4a5cdd209e5e3364e73aeeccdec11fa&oe=5EAB7359 

80318673_10215646294003664_5201850473774055424_n.jpg?_nc_cat=101&_nc_ohc=3aSlB5xaItEAQllGLivEL_pK_0Aq_HRhUq5zApAMo0jFUlHDCAKtNF2Hw&_nc_ht=scontent.fakl7-1.fna&oh=55210c28aabb1ff5fadde39a5f82c800&oe=5E74A459

80666883_10215646294283671_8872910105729826816_n.jpg?_nc_cat=109&_nc_ohc=1hvPwnuDqkcAQlZF4q4cO02uVF-7LDn8oQyaNMuJcghXxfQ8gZLBQRN1Q&_nc_ht=scontent.fakl7-1.fna&oh=4493630901fedeb66acebcb46b97d137&oe=5E6DFC8F

  • I found this Informative 9
Link to comment
Share on other sites

Hi,

 

Oh ! What is the size ?

 

Coco

----------------------
OUTIL POUR MESURER VOS FOSSILES : ici

Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici
Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici
Mâchoires sélaciennes récentes : ici
Hétérodontiques et sélaciens : ici
Oeufs sélaciens récents : ici
Otolithes de poissons récents ! ici

Un Greg...

Badges-IPFOTH.jpg.f4a8635cda47a3cc506743a8aabce700.jpg Badges-MOTM.jpg.461001e1a9db5dc29ca1c07a041a1a86.jpg

 

Link to comment
Share on other sites

4 hours ago, Jesuslover340 said:

You guys get the placentals, we get the marsupials-seems fair enough :P

Nope, marsupials are cooler. They have their own utility pocket!

  • I found this Informative 1
Link to comment
Share on other sites

21 hours ago, Strepsodus said:

Calamostachys ramosa

Upper Carboniferous

Pennine Lower Coal Measures formation

Wakefield, West Yorkshire, UK

Found Friday, 27th of December 2019

 

In artificial light, the details don’t stand out much on the photos, so I will post better photos taken in natural light tomorrow.

5DF4C7CA-8460-4E1B-8E83-7F303D432AA0.jpeg  755E2EFD-2E3E-41E9-B977-9159CEE95466.jpeg

That's brill! Wakefield is my hometown and i never knew it was possible to find stuff. 

Yorkshire Coast Fossil Hunter

Link to comment
Share on other sites

I'll enter an unusual invertebrate i found this month.

 

Found on 26th December

Vampire Squid Ink Sac.

The bits of shell strongly suggest it's a loligosepiid, probably Loligosepia. Thanks @TqB

Lower Jurassic, Toarcian Stage, Whitby Mudstone Formation, Mulgrave Shale Member (Falciferum Zone). :)

 

Ink.thumb.jpeg.cf82e0693ae8662fc964a1e7606570c5.jpeg

  • I found this Informative 9

Yorkshire Coast Fossil Hunter

Link to comment
Share on other sites

5 hours ago, LiamL said:

Found on 26th December

Vampire Squid Ink Sac.

 

Jet rock shale ( don't know exact formation for sure, not a geologist sorry just a collector :P )

 

 

 

Lower Jurassic, Toarcian Stage, Whitby Mudstone Formation, Mulgrave Shale Member (Falciferum Zone). :)

  • I found this Informative 3

Tarquin

Link to comment
Share on other sites

4 hours ago, LiamL said:

I'll enter an unusual invertebrate i found this month.

 

Found on 26th December

Vampire Squid Ink Sac.

 

That's an amazing find, Liam :D

  • I found this Informative 1

Opalised fossils are the best: a wonderful mix between paleontology and mineralogy!

 

Q. Where do dinosaurs study?

A. At Khaan Academy!...

 

My ResearchGate profile

Link to comment
Share on other sites

5 hours ago, LiamL said:

I'll enter an unusual invertebrate i found this month.

Found on 26th December

Vampire Squid Ink Sac.

Ink.thumb.jpeg.cf82e0693ae8662fc964a1e7606570c5.jpeg

 

Official Invertebrate Fossil of the Sithvader-smiley.gif?1292867693

  • I found this Informative 2

image.png.a84de26dad44fb03836a743755df237c.png

Link to comment
Share on other sites

Guest
This topic is now closed to further replies.
×
×
  • Create New...