Trace Fossil Help

[Carl]

Found these beauties in my neighborhood on a sidewalk I've walked over for about 15 years... Any ichnologists out there? I'm thinking Cosmoraphe, but I'm a bit out of my depth.

[Rockwood]

A little Red Green logic would indicate that you need to determine the hour that that neighbor leaves for work.  

[supertramp]

maybe Helminthoida?

https://www.google.it/search?q=helminthoida&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi99qbR89zZAhUGx1kKHYbEA3gQ_AUICygC&biw=1517&bih=707

[abyssunder]

I'm leaning toward Helminthoida / Helminthorhaphe or maybe Psammichnites meanders, but I'm not an a specialist in ichnology.

 

excerpt from R. Fan et al. 2017. From morphology to behaviour: Quantitative morphological study of the trace fossil Helminthorhaphe. Palaeogeography, Palaeoclimatology, Palaeoecology 485: 946–955

[Carl]

1 hour ago, supertramp said:

maybe Helminthoida?

https://www.google.it/search?q=helminthoida&source=lnms&tbm=isch&sa=X&ved=0ahUKEwi99qbR89zZAhUGx1kKHYbEA3gQ_AUICygC&biw=1517&bih=707

That was my next choice but I see such ambiguous images for both taxa and so much overlap.

[Carl]

1 hour ago, abyssunder said:

I'm leaning toward Helminthoida / Helminthorhaphe or maybe Psammichnites meanders, but I'm not an a specialist in ichnology.

 

excerpt from R. Fan et al. 2017. From morphology to behaviour: Quantitative morphological study of the trace fossil Helminthorhaphe. Palaeogeography, Palaeoclimatology, Palaeoecology 485: 946–955

Yep: Psammichnites was the 3rd choice!

[westcoast]

I would exclude Psammichnites but agree with helmithoides/helminthoraphe as being more likely candidates.

[doushantuo]

Taphrhelminthopsis,Cosmoraphe,what matters is that is is a graphoglyptid,probably from a turbidite sole .

Cosmoraphe has a slightly patchy distribution,so given the lack of crowding,maybe.................

AI has proven that is ethologically one of the simplest traces(doubling back on itself)

edit: WOW!!!!!!!

the ichnotypespecies of Cosmoraphe is Helminthopsis Fuchs 1895,BTW

The lack of second order undulations *  perhaps EXCLUDE it from Cosmoraphe

*As far as I can see

[GeschWhat]

So cool!

[Carl]

3 hours ago, doushantuo said:

Taphrhelminthopsis,Cosmoraphe,what matters is that is is a graphoglyptid,probably from a turbidite sole .

Cosmoraphe has a slightly patchy distribution,so given the lack of crowding,maybe.................

AI has proven that is ethologically one of the simplest traces(doubling back on itself)

edit: WOW!!!!!!!

the ichnotypespecies of Cosmoraphe is Helminthopsis Fuchs 1895,BTW

The lack of second order undulations *  perhaps EXCLUDE it from Cosmoraphe

*As far as I can see

I was afraid I'd have to back off to graphoglyptid, but so be it. Thanks!