Mazonia Braidwood March 2024 Finds

[Lady_Sif]

Spent a couple days collecting at Mazonia/Braidwood last weekend. Found a couple areas with decent open concretions, excited to see what opens up in coming weeks. ID help very welcome on these open ones, thank you!

[Lady_Sif]

Would also love an ID on these two that opened from last year. Thank you!

[Fossildude19]

@Nimravis  @RCFossils  @stats  @Mark Kmiecik  @fiddlehead

[veenasaur]

Are these specimens for real? So beautiful. Your hard work and research has paid off. The specimens are preserved so well. How long did it  take each concretion to split  on it's own?

[Lady_Sif]

@veenasaur Thank you so much! My second post above are from two concretions that we opened last year; those took several freeze thaw cycles, but anything decent started opening around cycles 12-14. The pics from the first post are actually all pieces I found already open last weekend! I found two small areas, two different days, with lots of already open ferns. I just wandered, and was legit army crawling to find spots that maybe hadn't been recently picked. I'm still soaking the closed concretions, I will post whatever I find from those in coming weeks, and be sure to better note how long they take to open! 

[Mark Kmiecik]

1. Annularia inflata

2. ?Diplazites unita

3. ?Crenulopteris acadica

4. ?Cyclopteris ?Neuropteris fimbriata. Hard to say because of the degree of weathering.

5. ?Macroneuropteris scheuchzeri basal pinnule? Again, quite weathered.

6. ?Pecopteris sp. Too weatherd for species ID?.

7. ?Crenulopteris acadica

8. ?Astreptoscolex anasillosus

9. Annularia inflata

10. Indet. twig

11. ?Seed

12. ?????

13. ?Shrimp molt

14. ?Shrimp molt

15. ????? Way too weathered.

16. ?Stephanospermum konopeonus

17. ?Pecopteris vera

 

The question mark in front indicates uncertainty regarding genus. At the end of the name indicates uncertainty regarding species. Wait for others to chime in and confirm or refute my attempts at ID. I'm not great at it, but this will get you started. The Annularia and shrimp molts I'm fairly sure of.

Edited March 22 by Mark Kmiecik

[Lady_Sif]

@Mark Kmiecik I greatly appreciate you taking the time to look and help ID! I've been sitting with my Jack Wittry book basically second-guessing myself in circles. On 13, the bit in the middle seems slightly pyritized; there's a hint of plant material at the bottom that's definitely too weathered, I just wasn't sure if the pyritized part was something else. 

 

I will also number and put a measuring unit in the next time I take pics, that would have helped here, sorry. Thanks again so much for going through them! 

[veenasaur]

9 hours ago, Lady_Sif said:

@veenasaur Thank you so much! My second post above are from two concretions that we opened last year; those took several freeze thaw cycles, but anything decent started opening around cycles 12-14. The pics from the first post are actually all pieces I found already open last weekend! I found two small areas, two different days, with lots of already open ferns. I just wandered, and was legit army crawling to find spots that maybe hadn't been recently picked. I'm still soaking the closed concretions, I will post whatever I find from those in coming weeks, and be sure to better note how long they take to open! 

That’s great. Looking forward to your future posts. It’s so fascinating to find surprises inside concretions. So impressive.

[Tidgy's Dad]

Fantastic finds!