Shame it isn't a bigger piece.
I'd say it could be either Lepidodendron or conifer cone.
But I favour conifer cone, because of the geometry. ...Though in a way that I can't really explain!
I can't say which genus of conifer.
Wow! Thanks for the replys mike and UK fossil guy. Either way, if its lepidodendron or a pine cone it's a first for me. Where I hunt, there is parts that produce loads of fossils and parts that barely produce any. I found this in a spot that doesn't contain many fossils, but they are harder rocks there are a lot harder than about 20m away, so I guess softer fossils can fossilize better in harder rocks. There is a part that is very productive in fossil wood, but it is very dangerous, due to it being near a cliff, so I don't go there any more, or at least without a helmet!
Here is a picture of the other side of it
Thanks for the further photo.
It doesn't help me much, but it leads me to point out that sometimes what you find is not the thing itself but a cast. With the real thing, there could be internal structure - which might help with ID. With a cast, there would be no relevant internal structure - the original having been replaced with mineral and/or sediment.
Your photo gives me the impression of a cast, hence our not seeing much inside.
Note also my use of 'conifer'.
Pine is not the only possibility. Araucaria cones can look similar.