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Showing results for tags 'trigonia'.
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I finally went over to a slow-moving construction site that has been in process for weeks, if not longer. With little hope due to a lot of bigger rocks being hauled off, I walked along the elevated slopes of plowed dirt and smaller rocks that remained. To my surprise, I found some nice Fort Worth formation echinoids (holaster and macraster sp) and some small ammonites of the mortoniceras sp. I also found a very well fed nautiloid, I’m nicknaming Fat Boy Lloyd (you know, respectfully like he’s a rapper). It weighed in at 5 lb 10 ounces! I thinks it’s paracymatoceras species given the visible lines that are very close together. I also found what I think is a nicely ornate trigonia clam. Tarrant county, Texas.
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- fort worth formation
- ammonites
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Bivalve Trigonia castrovillensis Corsicana Formation
JamieLynn posted a gallery image in Member Collections
From the album: Texas Cretaceous Fossils : Bivalves - Clams
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- bivalve
- trigonia castrovillensis
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Not exactly sure whether this is new information, has already been observed, or if this is just me misinterpreting fossils, but I recently noticed that there are two species of the Coon Creek Formation that look very similar. That being Pterotrigonia thoracica and Trigonia eufaulensis. I noticed while observing a gallery made by @Herb that each species looks very similar, and are almost indistinguishable. Upon observing other examples of each species, I came up with this conclusion: P. thoracica typically has 14-15 ribs on its shell, while T. eufualensis has 16-17. Let me know what you all think of this! The P. trigonia is a specimen that I found in 2018, while the T. eufualensis is from @Herb's gallery.
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- coon creek formation
- coon creek
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(and 4 more)
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From the album: My collection in progress
Myophorella clavellata Parkinson, 1811 Location: Villers-sur-Mer, Normandy, France Age: 166-163 Mya (Callovian, Middle Jurassic) Measurements: 2,8x1,7 cm Kingdom: Animalia Phylum: Mollusca Subphylum: Conchifera Class: Bivalvia Subclass: Palaeoheterodonta Order: Trigoniida Family: Trigoniidae -
Hi guys, I bought this fossil in a fossil store as trigonia, seems to me More líke a crassostraea fossil or oyster fossil. I bought It at baja California, México. If More angles are needed let me know. Could anyone advice please Where can i look for fossil species of this kind to know the species? Thank You!
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From the album: Texas Cretaceous Fossils : Bivalves - Clams
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From the album: Texas Cretaceous Fossils : Bivalves - Clams
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From the album: Texas Cretaceous Fossils : Bivalves - Clams
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From the album: Texas Cretaceous Fossils : Bivalves - Clams
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From the album: Texas Cretaceous Fossils : Bivalves - Clams
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From the album: Texas Cretaceous Fossils : Bivalves - Clams
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Trigonia reticulata Agassiz, 1840 Oxfordien Villers sur Mer Normandy
nala posted a gallery image in Member Collections
From the album: Trigonia from France
Trigonia reticulata Agassiz, 1840 Oxfordien Villers sur Mer Normandy -
From the album: German Gastropods and Bivalves
6x4.5cm. Found at the Kahlenberg in Ringsheim in the upper Rhine valley. Humphresianum zone, Bajocian, middle Jurassic. -
Both valves intact
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From the album: Vaches Noires - april and march 2016
Trigonia elongata : a bivalve from callovian clay of "les Vaches Noires" - Normandy - France -
From the album: Vaches Noires - april and march 2016
Trigonia elongata : a bivalve from callovian clay of "les Vaches Noires" - Normandy - France -
From the album: Vaches Noires - Feb 2016
Trigonia sp: a bivalve from the jurassic clay of Les Vaches Noires -
From the album: Vaches Noires - Feb 2016
Trigonia elongata : a bivalve from the callovian clay of Les Vaches Noires -
From the album: Vaches Noires - Feb 2016
Trigonia elongata : a bivalve from the callovian clay of Les Vaches Noires -
From the album: Vaches Noires - Feb 2016
Trigonia elongata : a bivalve from the callovian clay of Les Vaches Noires