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'Twilight Zone' from Sharktooth Hill, Bakersfield, California


dinoshark

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hey everyone,

 

i was able to visit sharktooth hill at bakersfield and with two trips so far, found over 200 teeth (~140 complete ones) and some cool looking isolated bones. i will post here as more finds come in. 

 

i found and dig at a spot where there is a tendency to find shark teeth fossils where the teeth are preserved with sunset multicolors - primarily purple / violet / blue in the broader regions of the crown, and red / orange / yellow closer to sharp tips on the crown. although occurrence of purple shark teeth are common in this spot, you can also find other colors preserved in teeth, including warmer color teeth like red, orange, pink, yellow teeth and also occasionally white and black teeth. i noticed there are some STH teeth that resemble this purple/blue-orange/yellow combo already out there, so this 'zone' is not only found at the spot i dig at, but appears elsewhere around bakersfield. as there are 'firezone' shark teeth currently floating around, i'd like to add to a new and fun distinction to shark teeth that embody multiple colors you would see on a sunset - 'twilight zone' teeth. 

 

i'll start off with a few photos i compiled - they take a lot of time to shoot and edit so i'll try to add more to this topic in new replies as i make time.

please play along in case the specimen names come off a bit odd :heartylaugh: i might have had too much fun naming them (i prefer unique names over serialized codes) - please don't let me be the only one who names their favorite fossil finds :oO:

 

hemipristis serra from day one, i love how the yellow serrations contrast against the blue under good lighting

 

Hemipristisserra.thumb.png.dc37a89a5705bc3fcde581e4aaa37e9d.pngLingualHemipristisserra.thumb.png.36c0b7d434db0726774c451775b0842d.pngLabialHemipristisserra.thumb.png.f68ef2681f38d6d223e1a3eb973f2a1c.png

 

probably tie for favorite find so far, this cosmopolitodus planus was crazy colorful and vibrant coming out of the ground, and thankfully retained much of its coloring

Cosmopolitodusplanus.thumb.png.30d047e5d22b17240fad4f64524b0cfc.png

LingualCosmopolitodusplanus.thumb.png.02558145da0447314bb91fe4b463f96b.png

LabialCosmopolitodusplanus.thumb.png.971e90d01c966bc730fe0d956183331b.png

 

cosmopolitodus hastalis "cardinal" is the biggest tooth i've found so far. 

Cosmpolitodushastalis.thumb.png.73a51c76f297f826fdefe4035142cdb5.png

LingualCosmopolitodushastalis.thumb.png.48e0ec77e79096cf2e95e3b8adce180b.png

LabialCosmopolitodushastalis.thumb.png.2e5c283d74f854d0924e1325ad2560e9.png

 

now this was a headscratcher - it is basically an equilateral triangle of a tooth, crown is very broad, proportional and short. the root of this tooth was a bit weathered as when found, but a shelf could still be identifiable from certain lighting angles. had asked for id and deemed isurus retroflexus.

 

Isurusretroflexus.thumb.png.5e4c111807613a4d3f410414026f463f.png

LingualIsurusretroflexus.thumb.png.fbb2fb0218291e3924127ed5da660999.png

LabialIsurusretroflexus.thumb.png.9d8dbb1575d74bde8d91addaa4dd4d14.png

 

a nice crisp carcharhinus egertoni requiem shark tooth. id deemed egertoni.

 

Carcharhinusegertoni.thumb.png.e1579994268447ce176222c2262ee2e1.png

LingualCarcharhinusegertoni.thumb.png.ff3da861d32dd0ec20e5b68640f84700.png

LabialCarcharhinusegertoni.thumb.png.25da305026dd7c0dc09de17189087d44.png

 

and this physogaleus contortus was a curious one to find, with a band of manganese slung around it like a wrestler's champion belt. 

 

Physogaleuscontortus.thumb.png.d8ff2532791c588f19227039c16d69d6.png

LingualPhysogaleuscontortus.thumb.png.d036719e61cd2868f92b67757d80e09f.png

LabialPhysogaleuscontortus.thumb.png.4acee74729e81fb6b00f04a30b66a02d.png

 

 

and more to come!

 

 

Lingual Physogaleus contortus.png

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The blue coloration is spectacular!

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Nice colors and great photos!

Fin Lover

image.png.e69a5608098eeb4cd7d1fc5feb4dad1e.png image.png.e6c66193c1b85b1b775526eb958f72df.png image.png.65903ff624a908a6c80f4d36d6ff8260.png

image.png.7cefa5ccc279142681efa4b7984dc6cb.png

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Beautiful colours and photos/graphics . The shark teeth from Bakersfield are quite special.  :envy:

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17 hours ago, minnbuckeye said:

The blue coloration is spectacular!

 

15 hours ago, Fin Lover said:

Nice colors and great photos!

 

8 hours ago, Bobby Rico said:

Beautiful colours and photos/graphics . The shark teeth from Bakersfield are quite special.  :envy:

 

thank you! oftentimes when i pull colorful teeth out of the ground, it's hard to tell how they end up looking after oxidizing over a few days, but will try to post a tooth called "zephyr" shortly, it's got a really rich dusk purple on the labial side even after oxidizing. 

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cosmopolitodus hastalis lower "zephyr" - my phone camera keeps adjusting the lingual photo too warm, did my best to maintain consistency :Confused05:

CosmopolitodushastalisZephyr.thumb.png.9a1c39c9266871764f9eda5a15ab77ff.pngLingualCosmopolitodushastalisZephyr.thumb.png.4923affbb9c0e3dac3bfe86db27d6178.pngLabialCosmopolitodushastalisZephyr.thumb.png.a6f23ef339c6a12f1cd90589d8a603a3.png

 

this cosmopolitodus planus lower tooth is one of those "plump root" teeth recently interpreted as planus teeth.

CosmopolitodusplanusBigroot.thumb.png.4ac00c19a5b310fbf2b2e973b65b117c.png

LingualCosmopolitodusplanusBigroot.thumb.png.bad7432eec58017d61d9b48a1ca2124d.png

LabialCosmopolitodusplanusBigroot.thumb.png.b56e752987ba49f0298350403058b6bb.png

 

here's a nice little orange + red pathological carcharhinus egertoni upper anterior tooth

 

CarcharhinusegertoniEmber.thumb.png.1741341ffb7be0c9a69dea06f613cbe3.png

LingualCarcharhinusegertoniEmber.thumb.png.00d669df664fda2f209248ac79234ca5.png

LabialCarcharhinusegertoniEmber.thumb.png.6b2c083dc3e07f32b27e134423078a6d.png

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Very nice teeth! The photography and presentation is also very well done. I enjoy the names, although I'd imagine that as the collection grows, it will be a challenge to come up with new ones. Numbers or other labels might have an organizational advantage at some point ;).

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Forever a student of Nature

 

image.png.b91ce67f2541747809ca9464ef3e0fa6.png image.png.91f16f76669e71e2b39cff25bd672bde.png image.png.d9d37e4f54d24fd75a9c495d6f024bb8.png

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15 hours ago, ThePhysicist said:

Very nice teeth! The photography and presentation is also very well done. I enjoy the names, although I'd imagine that as the collection grows, it will be a challenge to come up with new ones. Numbers or other labels might have an organizational advantage at some point ;).

thanks physicist! yes, i agree. though, once creative juices start running low, there's always a few generative AI waiting in line to give peculiar names :cool07: 

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  • 3 weeks later...

isurus desori / isurus oxyrinchus - pastel plum colored tooth, colors would probably change slightly lighter as these photos were taken on day of unearthing

 

IsurusdesoriEsper.thumb.png.930b3c041db79c0fcba6841f8470519e.pngLingualIsurusdesoriEsper.thumb.png.21fb3d59d0cfb8c23e1f790074665e56.pngLabialIsurusdesoriEsper.thumb.png.241543b89b1cd363116ddc6fdbd15a82.png

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Just found this thread... WOW, what incredible colors on these teeth.  I'm big on fossils with unique colors.

Thanks for sharing!

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-Jay

 

 

“The earth doesn't need new continents, but new men.”
― Jules Verne, Twenty Thousand Leagues Under the Sea

 

 

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On 8/10/2024 at 4:19 AM, dinoshark said:

isurus desori / isurus oxyrinchus - pastel plum colored tooth, colors would probably change slightly lighter as these photos were taken on day of unearthing

 

Incredible teeth, incredible photos... La dolce vita

I have never been to STH, a TFF member who became a good friend offered to trade some of his STH finds for guided fossil hunting trips to the Peace River and Bone Valley.  So I have some nice examples in my collection. He offered to return the favor and guide me to his favorite STH Locations.

Sometimes I just fail to make the right decisions.

Here are a couple he gave me.

IMG_4380lgMakoMatrix.jpg.6a347a52bb22b76801ee9e1b9f120ce5.jpgIMG_4385.jpg.8565fa4df277e9c3d09d26ff12ce020a.jpg

 

I look forward to your future post... Thanks for sharing..

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The White Queen  ".... in her youth she could believe "six impossible things before breakfast"

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1 minute ago, Shellseeker said:

IMG_4385.jpg.8565fa4df277e9c3d09d26ff12ce020a.jpg

Is that tooth in a coprolite?

-Jay

 

 

“The earth doesn't need new continents, but new men.”
― Jules Verne, Twenty Thousand Leagues Under the Sea

 

 

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39 minutes ago, Jaybot said:

Is that tooth in a coprolite?

It does not seem so although the entire matrix has been consolidated. coprolite from Florida rivers seems a lot different.... Maybe @ynot has a view. Are sand /limestone concretions like this possible at STH?

A couple of more photos just taken

IMG_8533.thumb.JPG.45725d1f671a756a879927f2785fa9e7.JPGIMG_8534ce.thumb.jpg.a62443567aeb58733145b714c4a09923.jpgIMG_8537.thumb.JPG.f2c51e2667c95c7ec63baf18e3f2cf01.JPG

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The White Queen  ".... in her youth she could believe "six impossible things before breakfast"

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4 hours ago, Jaybot said:

Just found this thread... WOW, what incredible colors on these teeth.  I'm big on fossils with unique colors.

Thanks for sharing!

 

2 hours ago, Shellseeker said:

Incredible teeth, incredible photos... La dolce vita

I have never been to STH, a TFF member who became a good friend offered to trade some of his STH finds for guided fossil hunting trips to the Peace River and Bone Valley.  So I have some nice examples in my collection. He offered to return the favor and guide me to his favorite STH Locations.

Sometimes I just fail to make the right decisions.

Here are a couple he gave me.

IMG_4380lgMakoMatrix.jpg.6a347a52bb22b76801ee9e1b9f120ce5.jpgIMG_4385.jpg.8565fa4df277e9c3d09d26ff12ce020a.jpg

 

I look forward to your future post... Thanks for sharing..

 

thanks fellas! appreciate it :meg:B)

 

Shellseeker, those are nice specimens! that's a big hastalis, and the second piece is a beauty - love the whale tooth combined with the shark tooth and stingray tooth, it's a great assembly representing the bonebed! doesn't seem to be a coprolite to me, but there's definitely a lot going on in that matrix

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  • 3 weeks later...

found my second hemipristis serra from sharktooth hill in bakersfield last week, and a killer upper anterior tooth at that. wanted to see if the colors would morph over time, but strangely this one basically kept the same shade. 

 

HemipristisserraReaper.thumb.png.9d492e542d315d61fac36b8bf072ba1e.png

LingualHemipristisserraReaper.thumb.png.960746747c175ba5f16ae28f77f43605.png

LabialHemipristisserraReaper.thumb.png.ff10acb76b63ed028859822a7a86cafd.png

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this cosmopolitodus / isurus planus was basically see-through, like seaglass. if you put it in front of the sun, you can see straight through the crown. 

 

CosmopolitodusplanusDewdrop.thumb.png.255feda06532b8c52281b1546d04d8c0.png

LingualCosmopolitodusplanusDewdrop.thumb.png.96b2499dffffff7a7a1d105805e60d1b.png

LabialCosmopolitodusplanusDewdrop.thumb.png.cb3a3be7d130383c48cd0bb50273cd7c.png

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a galeorhinus sp tope shark from sharktooth hill, bakersfield i found a few weeks ago. tiny little anterior tooth.

 

GaleorhinusspSnowflake.thumb.png.21755f177e2f5a69ff5a403bf93dbb59.png

LingualGaleorhinusspSnowflake.thumb.png.65a1c6e9f636589bb1d4f06268002c0f.png

LabialGaleorhinusspSnowflake.thumb.png.fe82dd5f26b61ca51a98deb5ce31ae94.png

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an upper anterior cosmopolitodus / isurus hastalis upper anterior (narrow form) tooth i found two months ago. nicknamed it "butterknife" for how long and serration-less it is. 

 

CosmopolitodushastalisButterknife.thumb.png.4bb15e7bcb98da6ff4aa767460e71bb9.png

LingualCosmopolitodushastalisButterknife.thumb.png.91fcc05dfd758d024eba61cd7b7923ce.png

LabialCosmopolitodushastalisButterknife.thumb.png.8c9b98876628053b7f101fd2c352722e.png

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